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Windows","i-lucide-cpu","/csharp/system-programming-windows","01.csharp/07.system-programming-windows",[259,263,267,271,275,279,283,287,291,295,299,303,307,311,315,319,323,327,331,335,339,343,347,351,355,359,363,367,371,375],{"title":260,"path":261,"stem":262},"Як Працює Операційна Система","/csharp/system-programming-windows/how-os-works","01.csharp/07.system-programming-windows/01.how-os-works",{"title":264,"path":265,"stem":266},"Процеси в .NET — API та Запуск","/csharp/system-programming-windows/processes-in-dotnet","01.csharp/07.system-programming-windows/02.processes-in-dotnet",{"title":268,"path":269,"stem":270},"Процеси в .NET — IPC та Міжпроцесна Комунікація","/csharp/system-programming-windows/02a.processes-ipc","01.csharp/07.system-programming-windows/02a.processes-ipc",{"title":272,"path":273,"stem":274},"Application Domains та Збірки — AppDomain і 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Primitives","/csharp/system-programming-windows/synchronization-advanced","01.csharp/07.system-programming-windows/07.synchronization-advanced",{"title":308,"path":309,"stem":310},"Синхронізація — Interlocked, Volatile та Lock-Free Структури","/csharp/system-programming-windows/07a.synchronization-advanced-walkthrough","01.csharp/07.system-programming-windows/07a.synchronization-advanced-walkthrough",{"title":312,"path":313,"stem":314},"Interlocked, CAS та Lock-Free Структури","/csharp/system-programming-windows/interlocked-cas-lockfree","01.csharp/07.system-programming-windows/08.interlocked-cas-lockfree",{"title":316,"path":317,"stem":318},"Volatile, Memory Model та Spinning","/csharp/system-programming-windows/08a.volatile-memory-model","01.csharp/07.system-programming-windows/08a.volatile-memory-model",{"title":320,"path":321,"stem":322},"ThreadPool — Пул Потоків для Ефективного 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DbProviderFactory — провайдер-незалежний код","/csharp/ado-net/provider-factory","01.csharp/09.ado-net/07.provider-factory",{"title":438,"path":439,"stem":440},"9.8. Асинхронний доступ до даних","/csharp/ado-net/async-data-access","01.csharp/09.ado-net/08.async-data-access",{"title":442,"path":443,"stem":444},"9.9. Від'єднаний режим: DataSet, DataTable, DataRow","/csharp/ado-net/disconnected-mode-dataset","01.csharp/09.ado-net/09.disconnected-mode-dataset",{"title":446,"path":447,"stem":448},"9.10. DataAdapter — міст між DataSet та базою даних","/csharp/ado-net/data-adapter","01.csharp/09.ado-net/10.data-adapter",{"title":450,"path":451,"stem":452},"9.11. Data Mapper та Repository: Архітектура доступу до даних","/csharp/ado-net/data-mapper-repository","01.csharp/09.ado-net/11.data-mapper-repository",{"title":454,"path":455,"stem":456},"9.12. Identity Map, Unit of Work та Specification Pattern","/csharp/ado-net/advanced-patterns","01.csharp/09.ado-net/12.advanced-patterns",{"title":458,"icon":255,"path":459,"stem":460,"children":461,"page":59},"Ef Core","/csharp/ef-core","01.csharp/10.ef-core",[462,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,532,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646],{"title":463,"path":464,"stem":465},"Що таке ORM? Від SQL до об'єктів","/csharp/ef-core/what-is-orm","01.csharp/10.ef-core/01.what-is-orm",{"title":467,"path":468,"stem":469},"Перший проєкт — від нуля до CRUD","/csharp/ef-core/first-project","01.csharp/10.ef-core/02.first-project",{"title":471,"path":472,"stem":473},"DbContext — Серце EF Core","/csharp/ef-core/dbcontext-deep-dive","01.csharp/10.ef-core/03.dbcontext-deep-dive",{"title":475,"path":476,"stem":477},"Провайдери баз даних — Архітектура та Вибір СУБД","/csharp/ef-core/database-providers","01.csharp/10.ef-core/04.database-providers",{"title":479,"path":480,"stem":481},"Конвенції EF Core — Магія без конфігурації","/csharp/ef-core/conventions","01.csharp/10.ef-core/05.conventions",{"title":483,"path":484,"stem":485},"Fluent API та Data Annotations — Явна конфігурація моделі","/csharp/ef-core/fluent-api-vs-annotations","01.csharp/10.ef-core/06.fluent-api-vs-annotations",{"title":487,"path":488,"stem":489},"Зв'язки — One-to-One та One-to-Many","/csharp/ef-core/relationships-basics","01.csharp/10.ef-core/07.relationships-basics",{"title":491,"path":492,"stem":493},"Зв'язки Advanced — Many-to-Many та Складні Сценарії","/csharp/ef-core/relationships-advanced","01.csharp/10.ef-core/08.relationships-advanced",{"title":495,"path":496,"stem":497},"Властивості — Типи, Конвертери, Компаратори (Частина 1)","/csharp/ef-core/property-configuration-part1","01.csharp/10.ef-core/09.property-configuration-part1",{"title":499,"path":500,"stem":501},"Властивості — Value Comparers, Generators, Shadow Properties (Частина 2)","/csharp/ef-core/property-configuration-part2","01.csharp/10.ef-core/09.property-configuration-part2",{"title":503,"path":504,"stem":505},"Складні типи — Owned Types та Complex Types (Частина 1)","/csharp/ef-core/complex-types-owned-part1","01.csharp/10.ef-core/10.complex-types-owned-part1",{"title":507,"path":508,"stem":509},"Складні типи — Complex Types, Keyless Entities, Порівняння (Частина 2)","/csharp/ef-core/complex-types-owned-part2","01.csharp/10.ef-core/10.complex-types-owned-part2",{"title":511,"path":512,"stem":513},"JSON Columns — Складні дані у JSON (Частина 1)","/csharp/ef-core/json-columns-part1","01.csharp/10.ef-core/11.json-columns-part1",{"title":515,"path":516,"stem":517},"JSON Columns — Value Comparers, Індекси, Провайдери (Частина 2)","/csharp/ef-core/json-columns-part2","01.csharp/10.ef-core/11.json-columns-part2",{"title":519,"path":520,"stem":521},"Успадкування — Абстрактні класи та TPH (Частина 1)","/csharp/ef-core/inheritance-part1","01.csharp/10.ef-core/12.inheritance-part1",{"title":523,"path":524,"stem":525},"Успадкування — TPT, TPC та Порівняння Стратегій (Частина 2)","/csharp/ef-core/inheritance-part2","01.csharp/10.ef-core/12.inheritance-part2",{"title":527,"path":528,"stem":529,"children":530},"Індекси, Обмеження та Схема (Частина 1)","/csharp/ef-core/indexes-constraints-part1","01.csharp/10.ef-core/13.indexes-constraints-part1",[531],{"title":527,"path":528,"stem":529},{"title":533,"path":534,"stem":535,"children":536},"Індекси, Обмеження та Схема (Частина 2)","/csharp/ef-core/indexes-constraints-part2","01.csharp/10.ef-core/13.indexes-constraints-part2",[537],{"title":533,"path":534,"stem":535},{"title":539,"path":540,"stem":541},"Seed Data — Початкові Дані (Частина 1)","/csharp/ef-core/seeding-part1","01.csharp/10.ef-core/14.seeding-part1",{"title":543,"path":544,"stem":545},"Seed Data — SQL-скрипти, Bogus та Стратегії (Частина 2)","/csharp/ef-core/seeding-part2","01.csharp/10.ef-core/14.seeding-part2",{"title":547,"path":548,"stem":549},"Global Query Filters — Глобальні Фільтри (Частина 1)","/csharp/ef-core/global-query-filters-part1","01.csharp/10.ef-core/15.global-query-filters-part1",{"title":551,"path":552,"stem":553},"Global Query Filters — Підводні камені та Інтеграція (Частина 2)","/csharp/ef-core/global-query-filters-part2","01.csharp/10.ef-core/15.global-query-filters-part2",{"title":555,"path":556,"stem":557},"LINQ-запити в EF Core (Частина 1)","/csharp/ef-core/linq-queries-part1","01.csharp/10.ef-core/16.linq-queries-part1",{"title":559,"path":560,"stem":561},"LINQ-запити в EF Core (Частина 2)","/csharp/ef-core/linq-queries-part2","01.csharp/10.ef-core/16.linq-queries-part2",{"title":563,"path":564,"stem":565},"Завантаження Пов'язаних Даних (Частина 1)","/csharp/ef-core/loading-related-data-part1","01.csharp/10.ef-core/17.loading-related-data-part1",{"title":567,"path":568,"stem":569},"Завантаження Пов'язаних Даних (Частина 2)","/csharp/ef-core/loading-related-data-part2","01.csharp/10.ef-core/17.loading-related-data-part2",{"title":571,"path":572,"stem":573},"Raw SQL, Views та Stored Procedures (Частина 1)","/csharp/ef-core/raw-sql-part1","01.csharp/10.ef-core/18.raw-sql-part1",{"title":575,"path":576,"stem":577},"Raw SQL — Stored Procedures, DbFunction та Bulk Operations (Частина 2)","/csharp/ef-core/raw-sql-part2","01.csharp/10.ef-core/18.raw-sql-part2",{"title":579,"path":580,"stem":581},"Продвинуті Запити — Compiled Queries, Bulk та Оптимізація (Частина 1)","/csharp/ef-core/advanced-queries-part1","01.csharp/10.ef-core/19.advanced-queries-part1",{"title":583,"path":584,"stem":585},"Продвинуті Запити — Query Tags, Bulk та Interceptors (Частина 2)","/csharp/ef-core/advanced-queries-part2","01.csharp/10.ef-core/19.advanced-queries-part2",{"title":587,"path":588,"stem":589},"Change Tracker — Відстеження Змін (Частина 1)","/csharp/ef-core/change-tracking-part1","01.csharp/10.ef-core/20.change-tracking-part1",{"title":591,"path":592,"stem":593},"Change Tracker — Графи Об'єктів та Disconnected (Частина 2)","/csharp/ef-core/change-tracking-part2","01.csharp/10.ef-core/20.change-tracking-part2",{"title":595,"path":596,"stem":597},"Збереження Даних та Транзакції (Частина 1)","/csharp/ef-core/saving-data-part1","01.csharp/10.ef-core/21.saving-data-part1",{"title":599,"path":600,"stem":601},"Збереження Даних — Concurrency та Outbox (Частина 2)","/csharp/ef-core/saving-data-part2","01.csharp/10.ef-core/21.saving-data-part2",{"title":603,"path":604,"stem":605},"Конкурентність та Блокування (Частина 1)","/csharp/ef-core/concurrency-part1","01.csharp/10.ef-core/22.concurrency-part1",{"title":607,"path":608,"stem":609},"Конкурентність — Дедлоки та Queue Processing (Частина 2)","/csharp/ef-core/concurrency-part2","01.csharp/10.ef-core/22.concurrency-part2",{"title":611,"path":612,"stem":613},"Міграції в EF Core — Основи (Частина 1)","/csharp/ef-core/migrations-basics-part1","01.csharp/10.ef-core/23.migrations-basics-part1",{"title":615,"path":616,"stem":617},"Міграції в EF Core — Основи (Частина 2)","/csharp/ef-core/migrations-basics-part2","01.csharp/10.ef-core/23.migrations-basics-part2",{"title":619,"path":620,"stem":621},"Міграції — Просунуті Сценарії (Частина 1)","/csharp/ef-core/migrations-advanced-part1","01.csharp/10.ef-core/24.migrations-advanced-part1",{"title":623,"path":624,"stem":625},"Міграції — Просунуті Сценарії (Частина 2)","/csharp/ef-core/migrations-advanced-part2","01.csharp/10.ef-core/24.migrations-advanced-part2",{"title":627,"path":628,"stem":629},"Управління Схемою та Database-First (Частина 1)","/csharp/ef-core/schema-management-part1","01.csharp/10.ef-core/25.schema-management-part1",{"title":631,"path":632,"stem":633},"Управління Схемою та Database-First (Частина 2)","/csharp/ef-core/schema-management-part2","01.csharp/10.ef-core/25.schema-management-part2",{"title":635,"path":636,"stem":637},"Продуктивність EF Core — Основи (Частина 1)","/csharp/ef-core/performance-fundamentals-part1","01.csharp/10.ef-core/26.performance-fundamentals-part1",{"title":639,"path":640,"stem":641},"Interceptors в EF Core (Частина 1)","/csharp/ef-core/interceptors-part1","01.csharp/10.ef-core/29.interceptors-part1",{"title":643,"path":644,"stem":645},"Interceptors в EF Core — Connection, Transaction та Materialization (Частина 2)","/csharp/ef-core/interceptors-part2","01.csharp/10.ef-core/29.interceptors-part2",{"title":647,"path":648,"stem":649},"План вивчення Entity Framework Core — Повний курс","/csharp/ef-core/implementation_plan","01.csharp/10.ef-core/implementation_plan",{"title":651,"icon":652,"path":653,"stem":654,"children":655,"page":59},"ASP.NET","i-devicon-dotnetcore","/csharp/aspnet","01.csharp/11.aspnet",[656,730,791,869,927,941,967,1057,1111,1182,1212,1289],{"title":657,"icon":658,"path":659,"stem":660,"children":661,"page":59},"Minimal API","i-lucide-network","/csharp/aspnet/minimal-api","01.csharp/11.aspnet/01.minimal-api",[662,666,670,674,678,682,686,690,694,698,702,706,710,714,718,722,726],{"title":663,"path":664,"stem":665},"Вступ до ASP.NET та еволюція фреймворку","/csharp/aspnet/minimal-api/introduction","01.csharp/11.aspnet/01.minimal-api/01.introduction",{"title":667,"path":668,"stem":669},"Перший додаток на ASP.NET Core","/csharp/aspnet/minimal-api/first-application","01.csharp/11.aspnet/01.minimal-api/02.first-application",{"title":671,"path":672,"stem":673},"WebApplication, Builder та Dependency Injection","/csharp/aspnet/minimal-api/webapplication-builder","01.csharp/11.aspnet/01.minimal-api/03.webapplication-builder",{"title":675,"path":676,"stem":677},"Конвеєр запитів та Middleware","/csharp/aspnet/minimal-api/request-pipeline-middleware","01.csharp/11.aspnet/01.minimal-api/04.request-pipeline-middleware",{"title":679,"path":680,"stem":681},"Маршрутизація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/routing-basics","01.csharp/11.aspnet/01.minimal-api/05.routing-basics",{"title":683,"path":684,"stem":685},"Маршрутизація в ASP.NET Core: Розширені можливості","/csharp/aspnet/minimal-api/routing-advanced","01.csharp/11.aspnet/01.minimal-api/06.routing-advanced",{"title":687,"path":688,"stem":689},"Статичні файли в ASP.NET Core","/csharp/aspnet/minimal-api/static-files","01.csharp/11.aspnet/01.minimal-api/07.static-files",{"title":691,"path":692,"stem":693},"Статичні Активи: MapStaticAssets (ASP.NET Core 9.0)","/csharp/aspnet/minimal-api/static-assets","01.csharp/11.aspnet/01.minimal-api/08.static-assets",{"title":695,"path":696,"stem":697},"Конфігурація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/configuration-fundamentals","01.csharp/11.aspnet/01.minimal-api/09.configuration-fundamentals",{"title":699,"path":700,"stem":701},"Конфігурація: Паттерн Options","/csharp/aspnet/minimal-api/configuration-options","01.csharp/11.aspnet/01.minimal-api/10.configuration-options",{"title":703,"path":704,"stem":705},"Логування в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/logging-basics","01.csharp/11.aspnet/01.minimal-api/11.logging-basics",{"title":707,"path":708,"stem":709},"Логування: Serilog та Middleware","/csharp/aspnet/minimal-api/logging-advanced","01.csharp/11.aspnet/01.minimal-api/12.logging-advanced",{"title":711,"path":712,"stem":713},"Управління станом: HttpContext.Items та Cookies","/csharp/aspnet/minimal-api/state-management","01.csharp/11.aspnet/01.minimal-api/13.state-management",{"title":715,"path":716,"stem":717},"Стан сесії: Sessions","/csharp/aspnet/minimal-api/session-state","01.csharp/11.aspnet/01.minimal-api/14.session-state",{"title":719,"path":720,"stem":721},"Структура проєкту: від хаосу до архітектури","/csharp/aspnet/minimal-api/project-structure","01.csharp/11.aspnet/01.minimal-api/15.project-structure",{"title":723,"path":724,"stem":725},"Scalar у Minimal API: повний проєкт і Fluent OpenAPI","/csharp/aspnet/minimal-api/scalar-openapi-fluent","01.csharp/11.aspnet/01.minimal-api/16.scalar-openapi-fluent",{"title":727,"path":728,"stem":729},"Swagger / Swashbuckle у Minimal API: окремий класичний шлях","/csharp/aspnet/minimal-api/swagger-swashbuckle","01.csharp/11.aspnet/01.minimal-api/17.swagger-swashbuckle",{"title":731,"icon":658,"path":732,"stem":733,"children":734,"page":59},"API","/csharp/aspnet/api","01.csharp/11.aspnet/02.api",[735,739,743,747,751,755,759,763,767,771,775,779,783,787],{"title":736,"path":737,"stem":738},"Що таке API. Клієнт-серверна архітектура","/csharp/aspnet/api/what-is-api","01.csharp/11.aspnet/02.api/01.what-is-api",{"title":740,"path":741,"stem":742},"Формати даних: JSON, XML, TOML та бінарні формати","/csharp/aspnet/api/data-formats","01.csharp/11.aspnet/02.api/02.data-formats",{"title":744,"path":745,"stem":746},"Парадигми API та концепція REST","/csharp/aspnet/api/api-paradigms-rest","01.csharp/11.aspnet/02.api/03.api-paradigms-rest",{"title":748,"path":749,"stem":750},"HTTP-методи, статус-коди та заголовки","/csharp/aspnet/api/http-methods-status-codes","01.csharp/11.aspnet/02.api/04.http-methods-status-codes",{"title":752,"path":753,"stem":754},"Організація HTTP API за принципами REST","/csharp/aspnet/api/rest-organizing","01.csharp/11.aspnet/02.api/05.rest-organizing",{"title":756,"path":757,"stem":758},"Номенклатура URL та CRUD-операції","/csharp/aspnet/api/url-nomenclature-crud","01.csharp/11.aspnet/02.api/06.url-nomenclature-crud",{"title":760,"path":761,"stem":762},"Правила дизайну: іменування та стандарти","/csharp/aspnet/api/api-design-naming","01.csharp/11.aspnet/02.api/07.api-design-naming",{"title":764,"path":765,"stem":766},"Валідація, ліміти та обробка помилок","/csharp/aspnet/api/api-design-validation","01.csharp/11.aspnet/02.api/08.api-design-validation",{"title":768,"path":769,"stem":770},"Обробка помилок у Minimal API","/csharp/aspnet/api/error-handling-http","01.csharp/11.aspnet/02.api/09.error-handling-http",{"title":772,"path":773,"stem":774},"Ідемпотентність та синхронізація стану","/csharp/aspnet/api/idempotency-sync","01.csharp/11.aspnet/02.api/10.idempotency-sync",{"title":776,"path":777,"stem":778},"Пагінація та організація списків","/csharp/aspnet/api/pagination-lists","01.csharp/11.aspnet/02.api/11.pagination-lists",{"title":780,"path":781,"stem":782},"Безпека API, кешування та інтернаціоналізація","/csharp/aspnet/api/security-auth","01.csharp/11.aspnet/02.api/12.security-auth",{"title":784,"path":785,"stem":786},"Процес проєктування API та документування","/csharp/aspnet/api/api-design-process","01.csharp/11.aspnet/02.api/13.api-design-process",{"title":788,"path":789,"stem":790},"OpenAPI: контракт, специфікація та документація API","/csharp/aspnet/api/openapi","01.csharp/11.aspnet/02.api/14.openapi",{"title":792,"icon":793,"path":794,"stem":795,"children":796,"page":59},"Auth","i-lucide-shield-check","/csharp/aspnet/auth","01.csharp/11.aspnet/03.auth",[797,801,805,809,813,817,821,825,829,833,837,841,845,849,853,857,861,865],{"title":798,"path":799,"stem":800},"Основи аутентифікації та авторизації","/csharp/aspnet/auth/auth-fundamentals","01.csharp/11.aspnet/03.auth/01.auth-fundamentals",{"title":802,"path":803,"stem":804},"JWT-аутентифікація","/csharp/aspnet/auth/jwt-authentication","01.csharp/11.aspnet/03.auth/02.jwt-authentication",{"title":806,"path":807,"stem":808},"Авторизація: ролі, політики та resource-based доступ","/csharp/aspnet/auth/authorization-policies","01.csharp/11.aspnet/03.auth/03.authorization-policies",{"title":810,"path":811,"stem":812},"Cookie-аутентифікація та ASP.NET Core Identity","/csharp/aspnet/auth/cookie-auth-identity","01.csharp/11.aspnet/03.auth/04.cookie-auth-identity",{"title":814,"path":815,"stem":816},"JWT + Refresh Tokens (HttpOnly Cookie)","/csharp/aspnet/auth/04b.identity-auth-jwt","01.csharp/11.aspnet/03.auth/04b.identity-auth-jwt",{"title":818,"path":819,"stem":820},"Identity: Підтвердження Email та Скидання Пароля","/csharp/aspnet/auth/identity-email-confirmation","01.csharp/11.aspnet/03.auth/05.identity-email-confirmation",{"title":822,"path":823,"stem":824},"Identity: Двофакторна Аутентифікація (2FA)","/csharp/aspnet/auth/identity-two-factor","01.csharp/11.aspnet/03.auth/06.identity-two-factor",{"title":826,"path":827,"stem":828},"Identity: Внутрішня Архітектура та Кастомізація","/csharp/aspnet/auth/identity-internals","01.csharp/11.aspnet/03.auth/07.identity-internals",{"title":830,"path":831,"stem":832},"OAuth 2.0 та зовнішні провайдери","/csharp/aspnet/auth/oauth-external-providers","01.csharp/11.aspnet/03.auth/08.oauth-external-providers",{"title":834,"path":835,"stem":836},"Безпека на практиці: CORS, HTTPS та захист від атак","/csharp/aspnet/auth/security-hardening","01.csharp/11.aspnet/03.auth/09.security-hardening",{"title":838,"path":839,"stem":840},"Теорія OAuth 2.0: Поняття, Аналогії та Флоу","/csharp/aspnet/auth/oauth-theory","01.csharp/11.aspnet/03.auth/10.oauth-theory",{"title":842,"path":843,"stem":844},"OIDC, OAuth 2.0 та Keycloak в ASP.NET Core","/csharp/aspnet/auth/oidc-keycloak","01.csharp/11.aspnet/03.auth/10.oidc-keycloak",{"title":846,"path":847,"stem":848},"API Keys аутентифікація в ASP.NET Core","/csharp/aspnet/auth/api-keys","01.csharp/11.aspnet/03.auth/11.api-keys",{"title":850,"path":851,"stem":852},"Rate Limiting та Throttling в ASP.NET Core","/csharp/aspnet/auth/rate-limiting","01.csharp/11.aspnet/03.auth/12.rate-limiting",{"title":854,"path":855,"stem":856},"Refresh Token Rotation в ASP.NET Core","/csharp/aspnet/auth/refresh-token-rotation","01.csharp/11.aspnet/03.auth/13.refresh-token-rotation",{"title":858,"path":859,"stem":860},"Certificate Authentication та mTLS в ASP.NET Core","/csharp/aspnet/auth/certificate-auth","01.csharp/11.aspnet/03.auth/14.certificate-auth",{"title":862,"path":863,"stem":864},"RBAC, ABAC та ReBAC в ASP.NET Core","/csharp/aspnet/auth/rbac-abac-rebac","01.csharp/11.aspnet/03.auth/15.rbac-abac-rebac",{"title":866,"path":867,"stem":868},"Multi-tenancy та ізоляція даних в ASP.NET Core","/csharp/aspnet/auth/multi-tenancy","01.csharp/11.aspnet/03.auth/16.multi-tenancy",{"title":870,"icon":871,"path":872,"stem":873,"children":874,"page":59},"Нотифікації","i-lucide-bell","/csharp/aspnet/notifications","01.csharp/11.aspnet/04.notifications",[875,879,883,887,891,895,899,903,907,911,915,919,923],{"title":876,"path":877,"stem":878},"In-App нотифікації через базу даних","/csharp/aspnet/notifications/in-app-database-notifications","01.csharp/11.aspnet/04.notifications/01.in-app-database-notifications",{"title":880,"path":881,"stem":882},"Polling: Регулярний запит оновлень","/csharp/aspnet/notifications/polling","01.csharp/11.aspnet/04.notifications/02.polling",{"title":884,"path":885,"stem":886},"Server-Sent Events: Однострімовий push від сервера","/csharp/aspnet/notifications/server-sent-events","01.csharp/11.aspnet/04.notifications/03.server-sent-events",{"title":888,"path":889,"stem":890},"WebSockets: Двостороннє з'єднання в реальному часі","/csharp/aspnet/notifications/websockets","01.csharp/11.aspnet/04.notifications/04.websockets",{"title":892,"path":893,"stem":894},"SignalR: Абстракція над транспортами реального часу","/csharp/aspnet/notifications/signalr","01.csharp/11.aspnet/04.notifications/05.signalr",{"title":896,"path":897,"stem":898},"Background Services: Фонові задачі в ASP.NET Core","/csharp/aspnet/notifications/background-services","01.csharp/11.aspnet/04.notifications/06.background-services",{"title":900,"path":901,"stem":902},"Web Push нотифікації","/csharp/aspnet/notifications/web-push","01.csharp/11.aspnet/04.notifications/07.web-push",{"title":904,"path":905,"stem":906},"Email нотифікації","/csharp/aspnet/notifications/email-notifications","01.csharp/11.aspnet/04.notifications/08.email-notifications",{"title":908,"path":909,"stem":910},"Порівняння підходів: Як вибрати правильну технологію нотифікацій","/csharp/aspnet/notifications/choosing-the-right-approach","01.csharp/11.aspnet/04.notifications/09.choosing-the-right-approach",{"title":912,"path":913,"stem":914},"Hangfire: Надійне планування фонових задач","/csharp/aspnet/notifications/hangfire","01.csharp/11.aspnet/04.notifications/10.hangfire",{"title":916,"path":917,"stem":918},"Практика: Конвертація зображень у WebP через Hangfire","/csharp/aspnet/notifications/hangfire-image-webp","01.csharp/11.aspnet/04.notifications/11.hangfire-image-webp",{"title":920,"path":921,"stem":922},"Практика: Підготовка відео до HLS-стрімінгу через Hangfire","/csharp/aspnet/notifications/hangfire-video-hls","01.csharp/11.aspnet/04.notifications/12.hangfire-video-hls",{"title":924,"path":925,"stem":926},"Telegram-нотифікації: від одного повідомлення до масових розсилок і мульти-канального підходу","/csharp/aspnet/notifications/telegram-notifications","01.csharp/11.aspnet/04.notifications/13.telegram-notifications",{"title":928,"icon":929,"path":930,"stem":931,"children":932,"page":59},"Інтернаціоналізація","i-lucide-languages","/csharp/aspnet/i18n","01.csharp/11.aspnet/05.i18n",[933,937],{"title":934,"path":935,"stem":936},"Інтернаціоналізація (i18n) у Minimal API: від A до Я","/csharp/aspnet/i18n/internationalization","01.csharp/11.aspnet/05.i18n/01.internationalization",{"title":938,"path":939,"stem":940},"Humanizer: людиномовні рядки у .NET","/csharp/aspnet/i18n/humanizer","01.csharp/11.aspnet/05.i18n/02.humanizer",{"title":942,"icon":943,"path":944,"stem":945,"children":946,"page":59},"Кешування","i-lucide-layers","/csharp/aspnet/caching","01.csharp/11.aspnet/06.caching",[947,951,955,959,963],{"title":948,"path":949,"stem":950},"Огляд кешування: чотири рівні і коли що обирати","/csharp/aspnet/caching/caching","01.csharp/11.aspnet/06.caching/01.caching",{"title":952,"path":953,"stem":954},"IMemoryCache: кеш в оперативній пам'яті","/csharp/aspnet/caching/memory-cache","01.csharp/11.aspnet/06.caching/02.memory-cache",{"title":956,"path":957,"stem":958},"IDistributedCache і Redis: розподілений кеш","/csharp/aspnet/caching/distributed-cache","01.csharp/11.aspnet/06.caching/03.distributed-cache",{"title":960,"path":961,"stem":962},"Response Cache: HTTP-кешування через Cache-Control","/csharp/aspnet/caching/response-cache","01.csharp/11.aspnet/06.caching/04.response-cache",{"title":964,"path":965,"stem":966},"Output Cache: серверний кеш HTTP-відповідей (.NET 7+)","/csharp/aspnet/caching/output-cache","01.csharp/11.aspnet/06.caching/05.output-cache",{"title":968,"icon":969,"path":970,"stem":971,"children":972,"page":59},"Тестування","i-lucide-test-tube","/csharp/aspnet/testing","01.csharp/11.aspnet/07.testing",[973,977,981,985,989,993,997,1001,1005,1009,1013,1017,1021,1025,1029,1033,1037,1041,1045,1049,1053],{"title":974,"path":975,"stem":976},"Що таке тестування? Від інтуїції до науки","/csharp/aspnet/testing/what-is-testing","01.csharp/11.aspnet/07.testing/01.what-is-testing",{"title":978,"path":979,"stem":980},"Піраміда тестування — Стратегія, а не Догма","/csharp/aspnet/testing/testing-pyramid","01.csharp/11.aspnet/07.testing/02.testing-pyramid",{"title":982,"path":983,"stem":984},"Дві Школи Тестування — Лондон проти Детройту","/csharp/aspnet/testing/testing-schools","01.csharp/11.aspnet/07.testing/03.testing-schools",{"title":986,"path":987,"stem":988},"TDD та BDD — Тести як Дизайн-інструмент","/csharp/aspnet/testing/tdd-and-bdd","01.csharp/11.aspnet/07.testing/04.tdd-and-bdd",{"title":990,"path":991,"stem":992},"Що саме тестувати — Техніки аналізу та Циклomatична складність","/csharp/aspnet/testing/what-to-test","01.csharp/11.aspnet/07.testing/05.what-to-test",{"title":994,"path":995,"stem":996},"Тестові Фреймворки — Навіщо вони і що всередині","/csharp/aspnet/testing/test-frameworks","01.csharp/11.aspnet/07.testing/06.test-frameworks",{"title":998,"path":999,"stem":1000},"xUnit — Факти, Теорії та Lifecycle тестів","/csharp/aspnet/testing/xunit-basics","01.csharp/11.aspnet/07.testing/07.xunit-basics",{"title":1002,"path":1003,"stem":1004},"xUnit Advanced — Fixtures, Кастомізація та Розширення","/csharp/aspnet/testing/xunit-advanced","01.csharp/11.aspnet/07.testing/08.xunit-advanced",{"title":1006,"path":1007,"stem":1008},"Moq — Глибоке занурення в мокування","/csharp/aspnet/testing/mocking-with-moq","01.csharp/11.aspnet/07.testing/09.mocking-with-moq",{"title":1010,"path":1011,"stem":1012},"Тестування Баз Даних — EF Core, SQLite та Testcontainers","/csharp/aspnet/testing/database-testing","01.csharp/11.aspnet/07.testing/10.database-testing",{"title":1014,"path":1015,"stem":1016},"Integration Testing — Частина 1 [Теорія та WebApplicationFactory]","/csharp/aspnet/testing/integration-testing","01.csharp/11.aspnet/07.testing/11.integration-testing",{"title":1018,"path":1019,"stem":1020},"Інтеграційне тестування — Практика","/csharp/aspnet/testing/11a.integration-testing-practice","01.csharp/11.aspnet/07.testing/11a.integration-testing-practice",{"title":1022,"path":1023,"stem":1024},"Integration Testing — Частина 2 [Просунуті Сценарії та Testcontainers]","/csharp/aspnet/testing/integration-testing-advanced","01.csharp/11.aspnet/07.testing/12.integration-testing-advanced",{"title":1026,"path":1027,"stem":1028},"Професійний Postman: Колекції, Змінні та GitHub Інтеграція","/csharp/aspnet/testing/postman-professional","01.csharp/11.aspnet/07.testing/13.postman-professional",{"title":1030,"path":1031,"stem":1032},"HttpClient у Тестах Частина 1: Архітектура та MockHttpMessageHandler","/csharp/aspnet/testing/httpclient-testing","01.csharp/11.aspnet/07.testing/14.httpclient-testing",{"title":1034,"path":1035,"stem":1036},"HttpClient у Тестах Частина 2: WireMock.Net та Resilience","/csharp/aspnet/testing/wiremock-net","01.csharp/11.aspnet/07.testing/15.wiremock-net",{"title":1038,"path":1039,"stem":1040},"Патерни та Анти-патерни Тестування: Test Smells","/csharp/aspnet/testing/testing-patterns","01.csharp/11.aspnet/07.testing/16.testing-patterns",{"title":1042,"path":1043,"stem":1044},"Просунуті інструменти: Time, Snapshots та Властивості","/csharp/aspnet/testing/advanced-testing-tools","01.csharp/11.aspnet/07.testing/17.advanced-testing-tools",{"title":1046,"path":1047,"stem":1048},"Тестування Архітектури з NetArchTest","/csharp/aspnet/testing/architecture-testing","01.csharp/11.aspnet/07.testing/18.architecture-testing",{"title":1050,"path":1051,"stem":1052},"Тестування Продуктивності: BenchmarkDotNet, NBomber та k6","/csharp/aspnet/testing/performance-testing","01.csharp/11.aspnet/07.testing/19.performance-testing",{"title":1054,"path":1055,"stem":1056},"Залишок плану для курсу \"Тестування ASP.NET Minimal API\"","/csharp/aspnet/testing/remaining_plan","01.csharp/11.aspnet/07.testing/remaining_plan",{"title":1058,"icon":1059,"path":1060,"stem":1061,"children":1062,"page":59},"Платежі","i-lucide-credit-card","/csharp/aspnet/payments","01.csharp/11.aspnet/08.payments",[1063,1067,1071,1075,1079,1083,1087,1091,1095,1099,1103,1107],{"title":1064,"path":1065,"stem":1066},"Основи платіжної інфраструктури","/csharp/aspnet/payments/payment-fundamentals","01.csharp/11.aspnet/08.payments/01.payment-fundamentals",{"title":1068,"path":1069,"stem":1070},"Методи оплати в Україні","/csharp/aspnet/payments/payment-methods-ukraine","01.csharp/11.aspnet/08.payments/02.payment-methods-ukraine",{"title":1072,"path":1073,"stem":1074},"PCI DSS та безпека платежів","/csharp/aspnet/payments/pci-dss-security","01.csharp/11.aspnet/08.payments/03.pci-dss-security",{"title":1076,"path":1077,"stem":1078},"Архітектура платіжної підсистеми","/csharp/aspnet/payments/payment-architecture","01.csharp/11.aspnet/08.payments/04.payment-architecture",{"title":1080,"path":1081,"stem":1082},"Інтеграція LiqPay (ПриватБанк)","/csharp/aspnet/payments/liqpay-integration","01.csharp/11.aspnet/08.payments/05.liqpay-integration",{"title":1084,"path":1085,"stem":1086},"Інтеграція Monobank Acquiring API","/csharp/aspnet/payments/monobank-acquiring","01.csharp/11.aspnet/08.payments/06.monobank-acquiring",{"title":1088,"path":1089,"stem":1090},"Інтеграція Stripe","/csharp/aspnet/payments/stripe-integration","01.csharp/11.aspnet/08.payments/07.stripe-integration",{"title":1092,"path":1093,"stem":1094},"Webhooks — глибоке занурення","/csharp/aspnet/payments/webhooks-deep-dive","01.csharp/11.aspnet/08.payments/08.webhooks-deep-dive",{"title":1096,"path":1097,"stem":1098},"Підписки та рекурентні платежі","/csharp/aspnet/payments/subscriptions-recurring","01.csharp/11.aspnet/08.payments/09.subscriptions-recurring",{"title":1100,"path":1101,"stem":1102},"Повернення коштів та диспути","/csharp/aspnet/payments/refunds-disputes","01.csharp/11.aspnet/08.payments/10.refunds-disputes",{"title":1104,"path":1105,"stem":1106},"Тестування платіжних інтеграцій","/csharp/aspnet/payments/testing-payments","01.csharp/11.aspnet/08.payments/11.testing-payments",{"title":1108,"path":1109,"stem":1110},"Чекліст виходу в Production","/csharp/aspnet/payments/production-checklist","01.csharp/11.aspnet/08.payments/12.production-checklist",{"title":1112,"icon":1113,"items":1114,"path":1127,"stem":1128,"children":1129,"page":59},"Популярні бібліотеки","lucide:box",[1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126],"01.fluent-validation","02.mapster","03.erroror-result-pattern","04.serilog","05.mediatr","06.polly","07.health-checks","08.feature-management","09.fluent-email","10.quest-pdf","11.bogus","12.humanizer-guard","/csharp/aspnet/libraries","01.csharp/11.aspnet/09.libraries",[1130,1134,1138,1142,1146,1150,1154,1158,1162,1166,1170,1174,1178],{"title":1131,"path":1132,"stem":1133},"Валідація з FluentValidation в ASP.NET Core","/csharp/aspnet/libraries/fluent-validation","01.csharp/11.aspnet/09.libraries/01.fluent-validation",{"title":1135,"path":1136,"stem":1137},"Маппінг об","/csharp/aspnet/libraries/mapster","01.csharp/11.aspnet/09.libraries/02.mapster",{"title":1139,"path":1140,"stem":1141},"Обробка помилок з ErrorOr та Result Pattern в ASP.NET Core","/csharp/aspnet/libraries/erroror-result-pattern","01.csharp/11.aspnet/09.libraries/03.erroror-result-pattern",{"title":1143,"path":1144,"stem":1145},"Структуроване логування з Serilog в ASP.NET Core","/csharp/aspnet/libraries/serilog","01.csharp/11.aspnet/09.libraries/04.serilog",{"title":1147,"path":1148,"stem":1149},"CQRS та Mediator з MediatR в ASP.NET Core","/csharp/aspnet/libraries/mediatr","01.csharp/11.aspnet/09.libraries/05.mediatr",{"title":1151,"path":1152,"stem":1153},"Відмовостійкість з Polly в ASP.NET Core","/csharp/aspnet/libraries/polly","01.csharp/11.aspnet/09.libraries/06.polly",{"title":1155,"path":1156,"stem":1157},"Health Checks в ASP.NET Core","/csharp/aspnet/libraries/health-checks","01.csharp/11.aspnet/09.libraries/07.health-checks",{"title":1159,"path":1160,"stem":1161},"Feature Management та Feature Flags в ASP.NET Core","/csharp/aspnet/libraries/feature-management","01.csharp/11.aspnet/09.libraries/08.feature-management",{"title":1163,"path":1164,"stem":1165},"Відправка Email з FluentEmail в ASP.NET Core","/csharp/aspnet/libraries/fluent-email","01.csharp/11.aspnet/09.libraries/09.fluent-email",{"title":1167,"path":1168,"stem":1169},"Генерація PDF з QuestPDF в ASP.NET Core","/csharp/aspnet/libraries/quest-pdf","01.csharp/11.aspnet/09.libraries/10.quest-pdf",{"title":1171,"path":1172,"stem":1173},"Генерація тестових даних з Bogus в ASP.NET Core","/csharp/aspnet/libraries/bogus","01.csharp/11.aspnet/09.libraries/11.bogus",{"title":1175,"path":1176,"stem":1177},"Humanizer та Guard Clauses в ASP.NET Core","/csharp/aspnet/libraries/humanizer-guard","01.csharp/11.aspnet/09.libraries/12.humanizer-guard",{"title":1179,"path":1180,"stem":1181},"План модуля 10.libraries — Популярні бібліотеки ASP.NET","/csharp/aspnet/libraries/plan","01.csharp/11.aspnet/09.libraries/plan",{"title":1183,"icon":1184,"path":1185,"stem":1186,"children":1187,"page":59},"Razor Pages","i-lucide-layout-template","/csharp/aspnet/razor-pages","01.csharp/11.aspnet/10.razor-pages",[1188,1192,1196,1200,1204,1208],{"title":1189,"path":1190,"stem":1191},"Від Minimal API до Razor Pages: концептуальний перехід","/csharp/aspnet/razor-pages/from-minimal-api","01.csharp/11.aspnet/10.razor-pages/01.from-minimal-api",{"title":1193,"path":1194,"stem":1195},"PageModel: логіка сторінки Razor Pages","/csharp/aspnet/razor-pages/page-model","01.csharp/11.aspnet/10.razor-pages/02.page-model",{"title":1197,"path":1198,"stem":1199},"Razor синтаксис: шаблонізатор у .cshtml","/csharp/aspnet/razor-pages/razor-syntax","01.csharp/11.aspnet/10.razor-pages/03.razor-syntax",{"title":1201,"path":1202,"stem":1203},"Tag Helpers: типізований HTML","/csharp/aspnet/razor-pages/tag-helpers","01.csharp/11.aspnet/10.razor-pages/04.tag-helpers",{"title":1205,"path":1206,"stem":1207},"Форми і валідація: повний цикл обробки даних","/csharp/aspnet/razor-pages/forms-validation","01.csharp/11.aspnet/10.razor-pages/05.forms-validation",{"title":1209,"path":1210,"stem":1211},"Практичний проєкт: TaskManager на Razor Pages","/csharp/aspnet/razor-pages/project-task-manager","01.csharp/11.aspnet/10.razor-pages/06.project-task-manager",{"title":1213,"path":1214,"stem":1215,"children":1216,"page":59},"ASP.NET Core MVC","/csharp/aspnet/mvc","01.csharp/11.aspnet/11.mvc",[1217,1221,1225,1229,1233,1237,1241,1245,1249,1253,1257,1261,1265,1269,1273,1277,1281,1285],{"title":1218,"path":1219,"stem":1220},"Патерн MVC: архітектура, що змінила веб","/csharp/aspnet/mvc/mvc-pattern","01.csharp/11.aspnet/11.mvc/01.mvc-pattern",{"title":1222,"path":1223,"stem":1224},"Від Razor Pages до MVC: концептуальний перехід","/csharp/aspnet/mvc/from-razor-pages","01.csharp/11.aspnet/11.mvc/02.from-razor-pages",{"title":1226,"path":1227,"stem":1228},"Controllers та Actions: серце MVC","/csharp/aspnet/mvc/controllers-actions","01.csharp/11.aspnet/11.mvc/03.controllers-actions",{"title":1230,"path":1231,"stem":1232},"Маршрутизація в MVC: Convention vs Attribute Routing","/csharp/aspnet/mvc/routing-mvc","01.csharp/11.aspnet/11.mvc/04.routing-mvc",{"title":1234,"path":1235,"stem":1236},"Model Binding: від HTTP до C#","/csharp/aspnet/mvc/model-binding","01.csharp/11.aspnet/11.mvc/05.model-binding",{"title":1238,"path":1239,"stem":1240},"Views, ViewData, ViewBag, TempData і ViewModel","/csharp/aspnet/mvc/views-viewdata-tempdata","01.csharp/11.aspnet/11.mvc/06.views-viewdata-tempdata",{"title":1242,"path":1243,"stem":1244},"Filters: аспектно-орієнтоване програмування в MVC","/csharp/aspnet/mvc/filters","01.csharp/11.aspnet/11.mvc/07.filters",{"title":1246,"path":1247,"stem":1248},"Areas: структурування великих застосунків","/csharp/aspnet/mvc/areas","01.csharp/11.aspnet/11.mvc/08.areas",{"title":1250,"path":1251,"stem":1252},"View Components: повторювані незалежні блоки UI","/csharp/aspnet/mvc/view-components","01.csharp/11.aspnet/11.mvc/09.view-components",{"title":1254,"path":1255,"stem":1256},"Display та Editor Templates","/csharp/aspnet/mvc/display-editor-templates","01.csharp/11.aspnet/11.mvc/10.display-editor-templates",{"title":1258,"path":1259,"stem":1260},"Валідація: IValidatableObject та FluentValidation","/csharp/aspnet/mvc/validation-advanced","01.csharp/11.aspnet/11.mvc/11.validation-advanced",{"title":1262,"path":1263,"stem":1264},"HTMX: інтерактивність через HTML-атрибути","/csharp/aspnet/mvc/htmx","01.csharp/11.aspnet/11.mvc/12.htmx",{"title":1266,"path":1267,"stem":1268},"HTMX у ASP.NET Core MVC: серверна інтеграція","/csharp/aspnet/mvc/ajax-htmx-mvc","01.csharp/11.aspnet/11.mvc/13.ajax-htmx-mvc",{"title":1270,"path":1271,"stem":1272},"Практичний проєкт: Каталог товарів з HTMX","/csharp/aspnet/mvc/htmx-project","01.csharp/11.aspnet/11.mvc/14.htmx-project",{"title":1274,"path":1275,"stem":1276},"Завантаження та обробка файлів","/csharp/aspnet/mvc/file-upload","01.csharp/11.aspnet/11.mvc/15.file-upload",{"title":1278,"path":1279,"stem":1280},"Глобалізація та Локалізація MVC","/csharp/aspnet/mvc/globalization-localization","01.csharp/11.aspnet/11.mvc/16.globalization-localization",{"title":1282,"path":1283,"stem":1284},"Підсумковий проєкт: Блог-платформа","/csharp/aspnet/mvc/mvc-project","01.csharp/11.aspnet/11.mvc/17.mvc-project",{"title":1286,"path":1287,"stem":1288},"План курсу: ASP.NET Core MVC","/csharp/aspnet/mvc/plan","01.csharp/11.aspnet/11.mvc/plan",{"title":1290,"path":1291,"stem":1292,"children":1293,"page":59},"Web Api","/csharp/aspnet/web-api","01.csharp/11.aspnet/12.web-api",[1294,1298,1302,1306,1310,1314,1318,1322,1326,1330,1334,1338,1342],{"title":1295,"path":1296,"stem":1297},"Від Minimal API до Controller-based API","/csharp/aspnet/web-api/from-minimal-api-to-controllers","01.csharp/11.aspnet/12.web-api/01.from-minimal-api-to-controllers",{"title":1299,"path":1300,"stem":1301},"ControllerBase, ActionResult\u003CT> та Response Types","/csharp/aspnet/web-api/controller-base-actionresult","01.csharp/11.aspnet/12.web-api/02.controller-base-actionresult",{"title":1303,"path":1304,"stem":1305},"Content Negotiation - JSON, XML та власні форматери","/csharp/aspnet/web-api/content-negotiation","01.csharp/11.aspnet/12.web-api/03.content-negotiation",{"title":1307,"path":1308,"stem":1309},"Версіонування API","/csharp/aspnet/web-api/api-versioning","01.csharp/11.aspnet/12.web-api/04.api-versioning",{"title":1311,"path":1312,"stem":1313},"ProblemDetails та структурована обробка помилок","/csharp/aspnet/web-api/problemdetails-error-handling","01.csharp/11.aspnet/12.web-api/05.problemdetails-error-handling",{"title":1315,"path":1316,"stem":1317},"Фільтри у Web API контексті","/csharp/aspnet/web-api/filters-for-api","01.csharp/11.aspnet/12.web-api/06.filters-for-api",{"title":1319,"path":1320,"stem":1321},"Пагінація, фільтрація та сортування","/csharp/aspnet/web-api/pagination-filtering-sorting","01.csharp/11.aspnet/12.web-api/07.pagination-filtering-sorting",{"title":1323,"path":1324,"stem":1325},"HATEOAS та Resource Expansion","/csharp/aspnet/web-api/hateoas-resource-expansion","01.csharp/11.aspnet/12.web-api/08.hateoas-resource-expansion",{"title":1327,"path":1328,"stem":1329},"Гібридна архітектура - Minimal API + Controllers","/csharp/aspnet/web-api/minimal-api-vs-controllers-hybrid","01.csharp/11.aspnet/12.web-api/09.minimal-api-vs-controllers-hybrid",{"title":1331,"path":1332,"stem":1333},"Документація API - Swashbuckle, NSwag та генерація клієнтів","/csharp/aspnet/web-api/api-documentation-generation","01.csharp/11.aspnet/12.web-api/10.api-documentation-generation",{"title":1335,"path":1336,"stem":1337},"Health Checks та моніторинг API","/csharp/aspnet/web-api/health-checks-monitoring","01.csharp/11.aspnet/12.web-api/11.health-checks-monitoring",{"title":1339,"path":1340,"stem":1341},"Підсумковий проєкт - Production-Ready REST API","/csharp/aspnet/web-api/web-api-project","01.csharp/11.aspnet/12.web-api/12.web-api-project",{"title":1343,"path":1344,"stem":1345},"План курсу: ASP.NET Core Web API (Controllers)","/csharp/aspnet/web-api/plan","01.csharp/11.aspnet/12.web-api/plan",{"title":1347,"icon":1348,"path":1349,"stem":1350,"children":1351,"page":59},"Desktop UI","i-lucide-app-window","/csharp/desktop-ui","01.csharp/12.desktop-ui",[1352,1356,1360,1364,1368,1372,1376,1380,1384,1388,1392,1396,1400,1404,1408,1412,1416,1420,1424,1428,1432,1436,1440,1444,1448,1452,1456,1460,1464,1468,1472,1476,1480,1484,1488,1492,1496,1500,1504,1508,1512,1516,1520,1524,1528,1532,1536,1540,1544,1548,1552,1556,1560,1564,1568,1572,1576,1580,1584,1588,1592,1596,1600,1604,1608,1612,1616,1620,1624,1628,1632],{"title":1353,"path":1354,"stem":1355},"Що таке десктопна розробка?","/csharp/desktop-ui/what-is-desktop-dev","01.csharp/12.desktop-ui/01.what-is-desktop-dev",{"title":1357,"path":1358,"stem":1359},"Архітектура WPF — як влаштований графічний інтерфейс","/csharp/desktop-ui/wpf-architecture","01.csharp/12.desktop-ui/02.wpf-architecture",{"title":1361,"path":1362,"stem":1363},"Перший WPF-проєкт — від нуля до вікна","/csharp/desktop-ui/first-wpf-app","01.csharp/12.desktop-ui/03.first-wpf-app",{"title":1365,"path":1366,"stem":1367},"Перший Avalonia-проєкт: WPF для всіх платформ","/csharp/desktop-ui/03a.first-avalonia-app","01.csharp/12.desktop-ui/03a.first-avalonia-app",{"title":1369,"path":1370,"stem":1371},"XAML: декларативний інтерфейс","/csharp/desktop-ui/xaml-basics","01.csharp/12.desktop-ui/04.xaml-basics",{"title":1373,"path":1374,"stem":1375},"Fluent UI у WPF — сучасний дизайн Windows 11","/csharp/desktop-ui/04a.wpf-fluent-ui","01.csharp/12.desktop-ui/04a.wpf-fluent-ui",{"title":1377,"path":1378,"stem":1379},"WPF UI — сучасна бібліотека Fluent контролів","/csharp/desktop-ui/04b.wpf-ui-library","01.csharp/12.desktop-ui/04b.wpf-ui-library",{"title":1381,"path":1382,"stem":1383},"HandyControl — велика бібліотека UI контролів для WPF","/csharp/desktop-ui/04c.handycontrol-library","01.csharp/12.desktop-ui/04c.handycontrol-library",{"title":1385,"path":1386,"stem":1387},"Простори імен та ресурси XAML","/csharp/desktop-ui/xaml-namespaces-resources","01.csharp/12.desktop-ui/05.xaml-namespaces-resources",{"title":1389,"path":1390,"stem":1391},"XAML в Avalonia: ключові відмінності від WPF","/csharp/desktop-ui/05a.avalonia-xaml-differences","01.csharp/12.desktop-ui/05a.avalonia-xaml-differences",{"title":1393,"path":1394,"stem":1395},"Розширення розмітки XAML (Markup Extensions)","/csharp/desktop-ui/xaml-markup-extensions","01.csharp/12.desktop-ui/06.xaml-markup-extensions",{"title":1397,"path":1398,"stem":1399},"Панелі Layout: StackPanel, WrapPanel, DockPanel","/csharp/desktop-ui/layout-panels-part1","01.csharp/12.desktop-ui/07.layout-panels-part1",{"title":1401,"path":1402,"stem":1403},"Grid, Canvas, UniformGrid","/csharp/desktop-ui/layout-panels-part2","01.csharp/12.desktop-ui/07.layout-panels-part2",{"title":1405,"path":1406,"stem":1407},"Просунуті техніки Layout","/csharp/desktop-ui/layout-advanced","01.csharp/12.desktop-ui/08.layout-advanced",{"title":1409,"path":1410,"stem":1411},"Адаптивний Layout та найкращі практики","/csharp/desktop-ui/layout-responsive","01.csharp/12.desktop-ui/09.layout-responsive",{"title":1413,"path":1414,"stem":1415},"Layout в Avalonia: відмінності та нові можливості","/csharp/desktop-ui/09a.layout-avalonia","01.csharp/12.desktop-ui/09a.layout-avalonia",{"title":1417,"path":1418,"stem":1419},"Button, Image, ProgressBar та інші базові контроли","/csharp/desktop-ui/basic-controls","01.csharp/12.desktop-ui/10.basic-controls",{"title":1421,"path":1422,"stem":1423},"Контроли в Avalonia: відмінності від WPF","/csharp/desktop-ui/10a.controls-avalonia","01.csharp/12.desktop-ui/10a.controls-avalonia",{"title":1425,"path":1426,"stem":1427},"Текстові контроли — TextBlock, TextBox, RichTextBox","/csharp/desktop-ui/text-controls","01.csharp/12.desktop-ui/11.text-controls",{"title":1429,"path":1430,"stem":1431},"Контроли вибору — CheckBox, RadioButton, ComboBox, ListBox, DatePicker","/csharp/desktop-ui/selection-controls","01.csharp/12.desktop-ui/12.selection-controls",{"title":1433,"path":1434,"stem":1435},"Content Model — GroupBox, Expander, TabControl, StatusBar","/csharp/desktop-ui/content-controls","01.csharp/12.desktop-ui/13.content-controls",{"title":1437,"path":1438,"stem":1439},"UI/UX принципи десктопних застосунків","/csharp/desktop-ui/13a.ui-ux-principles","01.csharp/12.desktop-ui/13a.ui-ux-principles",{"title":1441,"path":1442,"stem":1443},"Dependency Properties — Концепція та Value Resolution","/csharp/desktop-ui/dependency-properties-part1","01.csharp/12.desktop-ui/14.dependency-properties-part1",{"title":1445,"path":1446,"stem":1447},"Avalonia Property System — StyledProperty та DirectProperty","/csharp/desktop-ui/14a.avalonia-property-system","01.csharp/12.desktop-ui/14a.avalonia-property-system",{"title":1449,"path":1450,"stem":1451},"Attached Properties — Властивості без меж","/csharp/desktop-ui/attached-properties","01.csharp/12.desktop-ui/15.attached-properties",{"title":1453,"path":1454,"stem":1455},"Routed Events — Маршрутизація подій у WPF","/csharp/desktop-ui/routed-events","01.csharp/12.desktop-ui/16.routed-events",{"title":1457,"path":1458,"stem":1459},"Data Binding — Від Code-Behind до Декларативності","/csharp/desktop-ui/data-binding-basics-part1","01.csharp/12.desktop-ui/17.data-binding-basics-part1",{"title":1461,"path":1462,"stem":1463},"INotifyPropertyChanged — Живе оновлення UI","/csharp/desktop-ui/data-binding-basics-part2","01.csharp/12.desktop-ui/17.data-binding-basics-part2",{"title":1465,"path":1466,"stem":1467},"Compiled Bindings в Avalonia — Безпека на етапі компіляції","/csharp/desktop-ui/17a.avalonia-compiled-bindings","01.csharp/12.desktop-ui/17a.avalonia-compiled-bindings",{"title":1469,"path":1470,"stem":1471},"Просунутий Data Binding — ElementName, RelativeSource, MultiBinding","/csharp/desktop-ui/data-binding-advanced","01.csharp/12.desktop-ui/18.data-binding-advanced",{"title":1473,"path":1474,"stem":1475},"Value Converters — Перетворення типів даних у Data Binding","/csharp/desktop-ui/value-converters","01.csharp/12.desktop-ui/19.value-converters",{"title":1477,"path":1478,"stem":1479},"Data Templates — Візуалізація об'єктів у WPF","/csharp/desktop-ui/data-templates","01.csharp/12.desktop-ui/20.data-templates",{"title":1481,"path":1482,"stem":1483},"Collections Binding Part 1 — ObservableCollection та ItemsControl","/csharp/desktop-ui/collections-binding-part1","01.csharp/12.desktop-ui/21.collections-binding-part1",{"title":1485,"path":1486,"stem":1487},"Collections Binding Part 2 — ICollectionView, Filtering, Sorting та Virtualization","/csharp/desktop-ui/collections-binding-part2","01.csharp/12.desktop-ui/21.collections-binding-part2",{"title":1489,"path":1490,"stem":1491},"MVVM Pattern — Від Spaghetti Code до архітектури","/csharp/desktop-ui/mvvm-pattern","01.csharp/12.desktop-ui/22.mvvm-pattern",{"title":1493,"path":1494,"stem":1495},"ViewModel Implementation — Від BaseViewModel до валідації","/csharp/desktop-ui/viewmodel-implementation","01.csharp/12.desktop-ui/23.viewmodel-implementation",{"title":1497,"path":1498,"stem":1499},"Commands — Від event handlers до декларативних команд","/csharp/desktop-ui/commands","01.csharp/12.desktop-ui/24.commands",{"title":1501,"path":1502,"stem":1503},"MVVM Toolkit — MVVM без boilerplate через Source Generators","/csharp/desktop-ui/mvvm-toolkit","01.csharp/12.desktop-ui/25.mvvm-toolkit",{"title":1505,"path":1506,"stem":1507},"Messenger Pattern — Комунікація між ViewModel без прямих посилань","/csharp/desktop-ui/messenger-pattern","01.csharp/12.desktop-ui/26.messenger-pattern",{"title":1509,"path":1510,"stem":1511},"Стилі WPF — CSS для десктопу","/csharp/desktop-ui/styles-basics","01.csharp/12.desktop-ui/27.styles-basics",{"title":1513,"path":1514,"stem":1515},"CSS-like стилі Avalonia","/csharp/desktop-ui/27a.avalonia-css-styling","01.csharp/12.desktop-ui/27a.avalonia-css-styling",{"title":1517,"path":1518,"stem":1519},"Control Templates — Частина 1. Концепція та TemplateBinding","/csharp/desktop-ui/control-templates-part1","01.csharp/12.desktop-ui/28.control-templates-part1",{"title":1521,"path":1522,"stem":1523},"Control Templates — Частина 2. Named Parts та ContentPresenter","/csharp/desktop-ui/control-templates-part2","01.csharp/12.desktop-ui/28.control-templates-part2",{"title":1525,"path":1526,"stem":1527},"Control Themes в Avalonia — нова ера стилізації","/csharp/desktop-ui/28a.avalonia-control-themes","01.csharp/12.desktop-ui/28a.avalonia-control-themes",{"title":1529,"path":1530,"stem":1531},"Triggers та Visual State Manager у WPF","/csharp/desktop-ui/triggers-visual-states","01.csharp/12.desktop-ui/29.triggers-visual-states",{"title":1533,"path":1534,"stem":1535},"Pseudo-classes в Avalonia — замість WPF Triggers","/csharp/desktop-ui/29a.avalonia-pseudo-classes","01.csharp/12.desktop-ui/29a.avalonia-pseudo-classes",{"title":1537,"path":1538,"stem":1539},"Теми та ресурсні словники у WPF","/csharp/desktop-ui/resources-themes","01.csharp/12.desktop-ui/30.resources-themes",{"title":1541,"path":1542,"stem":1543},"Avalonia Themes — Fluent Design та система тематизації","/csharp/desktop-ui/30a.avalonia-themes-fluent","01.csharp/12.desktop-ui/30a.avalonia-themes-fluent",{"title":1545,"path":1546,"stem":1547},"Контроли колекцій — глибоке занурення","/csharp/desktop-ui/collection-controls","01.csharp/12.desktop-ui/31.collection-controls",{"title":1549,"path":1550,"stem":1551},"DataGrid — колонки та базове відображення","/csharp/desktop-ui/datagrid-part1","01.csharp/12.desktop-ui/32.datagrid-part1",{"title":1553,"path":1554,"stem":1555},"DataGrid — сортування, фільтрація, редагування","/csharp/desktop-ui/datagrid-part2","01.csharp/12.desktop-ui/32.datagrid-part2",{"title":1557,"path":1558,"stem":1559},"TreeView та GridView","/csharp/desktop-ui/treeview-listview","01.csharp/12.desktop-ui/33.treeview-listview",{"title":1561,"path":1562,"stem":1563},"Меню, Toolbar, ContextMenu, StatusBar","/csharp/desktop-ui/menus-toolbars","01.csharp/12.desktop-ui/34.menus-toolbars",{"title":1565,"path":1566,"stem":1567},"Навігація та керування вікнами. Частина 1: вікна та сторінки","/csharp/desktop-ui/navigation-windows-part1","01.csharp/12.desktop-ui/35.navigation-windows-part1",{"title":1569,"path":1570,"stem":1571},"Навігація та керування вікнами. Частина 2: MVVM-навігація","/csharp/desktop-ui/navigation-windows-part2","01.csharp/12.desktop-ui/35.navigation-windows-part2",{"title":1573,"path":1574,"stem":1575},"Avalonia — Навігація та діалоги","/csharp/desktop-ui/35a.avalonia-navigation-dialogs","01.csharp/12.desktop-ui/35a.avalonia-navigation-dialogs",{"title":1577,"path":1578,"stem":1579},"Діалоги та File Pickers у WPF","/csharp/desktop-ui/dialogs-file-pickers","01.csharp/12.desktop-ui/36.dialogs-file-pickers",{"title":1581,"path":1582,"stem":1583},"UserControl: компонентний підхід у WPF","/csharp/desktop-ui/user-controls","01.csharp/12.desktop-ui/37.user-controls",{"title":1585,"path":1586,"stem":1587},"Custom Controls: Lookless Controls у WPF","/csharp/desktop-ui/custom-controls","01.csharp/12.desktop-ui/38.custom-controls",{"title":1589,"path":1590,"stem":1591},"Avalonia TemplatedControl — Lookless Controls","/csharp/desktop-ui/38a.avalonia-templated-controls","01.csharp/12.desktop-ui/38a.avalonia-templated-controls",{"title":1593,"path":1594,"stem":1595},"Анімації у WPF: Storyboard та Easing Functions","/csharp/desktop-ui/animations-transitions","01.csharp/12.desktop-ui/39.animations-transitions",{"title":1597,"path":1598,"stem":1599},"Анімації в Avalonia","/csharp/desktop-ui/39a.avalonia-animations","01.csharp/12.desktop-ui/39a.avalonia-animations",{"title":1601,"path":1602,"stem":1603},"2D Графіка та Мультимедіа у WPF","/csharp/desktop-ui/media-graphics","01.csharp/12.desktop-ui/40.media-graphics",{"title":1605,"path":1606,"stem":1607},"Dependency Injection у WPF та Avalonia","/csharp/desktop-ui/di-integration","01.csharp/12.desktop-ui/41.di-integration",{"title":1609,"path":1610,"stem":1611},"SQLite та EF Core у десктопних додатках","/csharp/desktop-ui/data-persistence-part1","01.csharp/12.desktop-ui/42.data-persistence-part1",{"title":1613,"path":1614,"stem":1615},"Repository Pattern та Unit of Work","/csharp/desktop-ui/data-persistence-part2","01.csharp/12.desktop-ui/43.data-persistence-part2",{"title":1617,"path":1618,"stem":1619},"Тестування ViewModels","/csharp/desktop-ui/viewmodel-testing","01.csharp/12.desktop-ui/44.viewmodel-testing",{"title":1621,"path":1622,"stem":1623},"Avalonia Headless Testing — тестування UI без вікон","/csharp/desktop-ui/44a.avalonia-headless-testing","01.csharp/12.desktop-ui/44a.avalonia-headless-testing",{"title":1625,"path":1626,"stem":1627},"Кросплатформна розробка з Avalonia","/csharp/desktop-ui/avalonia-cross-platform","01.csharp/12.desktop-ui/45.avalonia-cross-platform",{"title":1629,"path":1630,"stem":1631},"Пакування та розгортання Avalonia додатків","/csharp/desktop-ui/avalonia-packaging-deployment","01.csharp/12.desktop-ui/46.avalonia-packaging-deployment",{"title":1633,"path":1634,"stem":1635},"Розгортання WPF застосунків","/csharp/desktop-ui/wpf-packaging-deployment","01.csharp/12.desktop-ui/47.wpf-packaging-deployment",{"title":1637,"path":1638,"stem":1639},"C# & .NET: The Ultimate Roadmap","/csharp/roadmap","01.csharp/roadmap",{"title":1641,"icon":1642,"path":1643,"stem":1644,"children":1645,"page":59},"C++","i-devicon-cplusplus","/cpp","02.cpp",[1646,1650,1654,1658,1662,1666,1670,1674,1678,1681,1685,1689,1693,1697,1701,1705,1709,1713,1717,1721,1725,1729,1733,1737,1741,1745,1749,1753,1757,1761],{"title":1647,"path":1648,"stem":1649},"Вступ у програмування та алгоритми","/cpp/intro-algorithms","02.cpp/01.intro-algorithms",{"title":1651,"path":1652,"stem":1653},"Code Style: угоди про оформлення коду","/cpp/code-style","02.cpp/02.code-style",{"title":1655,"path":1656,"stem":1657},"Середовище розробки та перший 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типу void","/cpp/void-pointers","02.cpp/20.void-pointers",{"title":1726,"path":1727,"stem":1728},"Вказівники на вказівники","/cpp/pointers-to-pointers","02.cpp/21.pointers-to-pointers",{"title":1730,"path":1731,"stem":1732},"Оператор доступу до членів через вказівник (->)","/cpp/member-access-operator","02.cpp/22.member-access-operator",{"title":1734,"path":1735,"stem":1736},"Цикл for-each (Range-based for)","/cpp/foreach-loop","02.cpp/23.foreach-loop",{"title":1738,"path":1739,"stem":1740},"Вказівники на функції","/cpp/function-pointers","02.cpp/24.function-pointers",{"title":1742,"path":1743,"stem":1744},"Лямбда-вирази","/cpp/lambdas","02.cpp/25.lambdas",{"title":1746,"path":1747,"stem":1748},"Лямбда-захоплення","/cpp/lambda-captures","02.cpp/26.lambda-captures",{"title":1750,"path":1751,"stem":1752},"Еліпсис","/cpp/ellipsis","02.cpp/27.ellipsis",{"title":1754,"path":1755,"stem":1756},"Аргументи командного рядка","/cpp/command-line-arguments","02.cpp/28.command-line-arguments",{"title":1758,"path":1759,"stem":1760},"Перерахування (enum)","/cpp/enum","02.cpp/29.enum",{"title":1762,"path":1763,"stem":1764},"План навчання: Курс C++ — Продовження (Статті 29–60+)","/cpp/curriculum-plan","02.cpp/curriculum-plan",{"title":1766,"icon":1767,"path":1768,"stem":1769,"children":1770,"page":59},"JavaScript","i-devicon-javascript","/javascript","03.javascript",[1771,1797,1851,1873,2177,2215],{"title":1772,"icon":1773,"path":1774,"stem":1775,"children":1776,"page":59},"Events","i-lucide-mouse-pointer-click","/javascript/events","03.javascript/01.events",[1777,1781,1785,1789,1793],{"title":1778,"path":1779,"stem":1780},"Вступ до подій браузера","/javascript/events/intro","03.javascript/01.events/01.intro",{"title":1782,"path":1783,"stem":1784},"Бульбашковий механізм (Bubbling) та занурення (Capturing)","/javascript/events/bubbling-capturing","03.javascript/01.events/02.bubbling-capturing",{"title":1786,"path":1787,"stem":1788},"Делегування подій (Event Delegation)","/javascript/events/delegate-events","03.javascript/01.events/03.delegate-events",{"title":1790,"path":1791,"stem":1792},"Типові дії браузера та preventDefault()","/javascript/events/prevent-default","03.javascript/01.events/04.prevent-default",{"title":1794,"path":1795,"stem":1796},"Запуск користувацьких подій (Custom Events)","/javascript/events/custom-events","03.javascript/01.events/05.custom-events",{"title":1798,"icon":1799,"path":1800,"stem":1801,"children":1802,"page":59},"Network","i-lucide-globe","/javascript/network","03.javascript/02.network",[1803,1807,1811,1815,1819,1823,1827,1831,1835,1839,1843,1847],{"title":1804,"path":1805,"stem":1806},"Fetch API - Сучасний підхід до HTTP-запитів","/javascript/network/01-fetch-api","03.javascript/02.network/01-fetch-api",{"title":1808,"path":1809,"stem":1810},"FormData - Робота з формами та файлами","/javascript/network/02-formdata","03.javascript/02.network/02-formdata",{"title":1812,"path":1813,"stem":1814},"Відстеження прогресу завантаження","/javascript/network/03-download-progress","03.javascript/02.network/03-download-progress",{"title":1816,"path":1817,"stem":1818},"Переривання fetch-запитів","/javascript/network/04-abort-requests","03.javascript/02.network/04-abort-requests",{"title":1820,"path":1821,"stem":1822},"CORS - Запити між різними джерелами","/javascript/network/05-cors","03.javascript/02.network/05-cors",{"title":1824,"path":1825,"stem":1826},"Fetch API - Повний довідник опцій","/javascript/network/06-fetch-options","03.javascript/02.network/06-fetch-options",{"title":1828,"path":1829,"stem":1830},"URL Objects - Робота з посиланнями","/javascript/network/07-url-objects","03.javascript/02.network/07-url-objects",{"title":1832,"path":1833,"stem":1834},"XMLHttpRequest - AJAX та низькорівневі запити","/javascript/network/08-xmlhttprequest","03.javascript/02.network/08-xmlhttprequest",{"title":1836,"path":1837,"stem":1838},"Відновлюване завантаження файлів","/javascript/network/09-resumable-upload","03.javascript/02.network/09-resumable-upload",{"title":1840,"path":1841,"stem":1842},"Cookies, document.cookie та світ після \"Cookiepocalypse\"","/javascript/network/10-cookies","03.javascript/02.network/10-cookies",{"title":1844,"path":1845,"stem":1846},"js-cookie: Керування Cookies без Болю","/javascript/network/11-js-cookie","03.javascript/02.network/11-js-cookie",{"title":1848,"path":1849,"stem":1850},"Axios: Потужний HTTP-клієнт для JavaScript","/javascript/network/12-axios","03.javascript/02.network/12-axios",{"title":1852,"icon":1853,"path":1854,"stem":1855,"children":1856,"page":59},"Bom","i-lucide-monitor","/javascript/bom","03.javascript/03.bom",[1857,1861,1865,1869],{"title":1858,"path":1859,"stem":1860},"LocalStorage, SessionStorage та patterns збереження даних","/javascript/bom/01-localstorage","03.javascript/03.bom/01-localstorage",{"title":1862,"path":1863,"stem":1864},"Location Object - Керування адресою сторінки","/javascript/bom/02-location-object","03.javascript/03.bom/02-location-object",{"title":1866,"path":1867,"stem":1868},"History API - Керування історією браузера","/javascript/bom/03-history-api","03.javascript/03.bom/03-history-api",{"title":1870,"path":1871,"stem":1872},"Navigator Object - Ідентифікація та Можливості Пристрою","/javascript/bom/04-navigator-object","03.javascript/03.bom/04-navigator-object",{"title":1874,"icon":1875,"path":1876,"stem":1877,"children":1878},"React","i-devicon-react","/javascript/react","03.javascript/04.react/index",[1879,1880,1884,1888,1892,1896,1959,1994,2146],{"title":1874,"path":1876,"stem":1877},{"title":1881,"path":1882,"stem":1883},"Робота з Формами в React","/javascript/react/react-forms","03.javascript/04.react/01.react-forms",{"title":1885,"path":1886,"stem":1887},"React Hook Form: Професійна Робота з Формами","/javascript/react/react-hook-form","03.javascript/04.react/02.react-hook-form",{"title":1889,"path":1890,"stem":1891},"React Hook Form: Глибоке Розуміння Архітектури та Оптимізації","/javascript/react/react-hook-form-new","03.javascript/04.react/02.react-hook-form-new",{"title":1893,"path":1894,"stem":1895},"Axios та React: Професійна Архітектура Запитів","/javascript/react/data-fetching-axios","03.javascript/04.react/03.data-fetching-axios",{"title":1897,"icon":132,"path":1898,"stem":1899,"children":1900},"Tanstack Query","/javascript/react/tanstack-query","03.javascript/04.react/04.tanstack-query/index",[1901,1903,1907,1911,1915,1919,1923,1927,1931,1935,1939,1943,1947,1951,1955],{"title":1902,"path":1898,"stem":1899},"TanStack Query: Майстерність Керування Станом Сервера",{"title":1904,"path":1905,"stem":1906},"Парадигма Server State: Чому useEffect недостатньо","/javascript/react/tanstack-query/server-state-paradigm","03.javascript/04.react/04.tanstack-query/01.server-state-paradigm",{"title":1908,"path":1909,"stem":1910},"Встановлення та Налаштування: Фундамент","/javascript/react/tanstack-query/installation-and-devtools","03.javascript/04.react/04.tanstack-query/02.installation-and-devtools",{"title":1912,"path":1913,"stem":1914},"Основи Запитів та Магія Ключів","/javascript/react/tanstack-query/query-basics-and-keys","03.javascript/04.react/04.tanstack-query/03.query-basics-and-keys",{"title":1916,"path":1917,"stem":1918},"Синхронізація Даних: Життєвий Цикл Запиту","/javascript/react/tanstack-query/data-synchronization","03.javascript/04.react/04.tanstack-query/04.data-synchronization",{"title":1920,"path":1921,"stem":1922},"Мутації та Інвалідація: Зміна Даних","/javascript/react/tanstack-query/mutations-and-invalidation","03.javascript/04.react/04.tanstack-query/05.mutations-and-invalidation",{"title":1924,"path":1925,"stem":1926},"Оптимістичні Оновлення: Швидше за Світло","/javascript/react/tanstack-query/optimistic-updates","03.javascript/04.react/04.tanstack-query/06.optimistic-updates",{"title":1928,"path":1929,"stem":1930},"Пагінація та Infinite Scroll","/javascript/react/tanstack-query/pagination-and-load-more","03.javascript/04.react/04.tanstack-query/07.pagination-and-load-more",{"title":1932,"path":1933,"stem":1934},"Просунуті Патерни та Оптимізація","/javascript/react/tanstack-query/advanced-patterns","03.javascript/04.react/04.tanstack-query/08.advanced-patterns",{"title":1936,"path":1937,"stem":1938},"Архітектура та Best Practices","/javascript/react/tanstack-query/architecture-and-best-practices","03.javascript/04.react/04.tanstack-query/09.architecture-and-best-practices",{"title":1940,"path":1941,"stem":1942},"Server-Side Rendering (SSR) та Гідратація","/javascript/react/tanstack-query/server-side-rendering","03.javascript/04.react/04.tanstack-query/10.server-side-rendering",{"title":1944,"path":1945,"stem":1946},"Стратегії Тестування","/javascript/react/tanstack-query/testing-strategies","03.javascript/04.react/04.tanstack-query/11.testing-strategies",{"title":1948,"path":1949,"stem":1950},"Аутентифікація та Обробка Помилок","/javascript/react/tanstack-query/authentication-and-errors","03.javascript/04.react/04.tanstack-query/12.authentication-and-errors",{"title":1952,"path":1953,"stem":1954},"React Suspense та Майбутнє","/javascript/react/tanstack-query/react-suspense","03.javascript/04.react/04.tanstack-query/13.react-suspense",{"title":1956,"path":1957,"stem":1958},"Глибоке Занурення в Продуктивність","/javascript/react/tanstack-query/performance-deep-dive","03.javascript/04.react/04.tanstack-query/14.performance-deep-dive",{"title":1960,"icon":1875,"path":1961,"stem":1962,"children":1963},"React Router","/javascript/react/react-router","03.javascript/04.react/05.react-router/index",[1964,1966,1970,1974,1978,1982,1986,1990],{"title":1965,"path":1961,"stem":1962},"React Router: Навігаційна система сучасного вебу",{"title":1967,"path":1968,"stem":1969},"Налаштування та Базовий Роутинг","/javascript/react/react-router/setup-and-basic-routing","03.javascript/04.react/05.react-router/01.setup-and-basic-routing",{"title":1971,"path":1972,"stem":1973},"Динамічна Навігація","/javascript/react/react-router/navigation-and-links","03.javascript/04.react/05.react-router/02.navigation-and-links",{"title":1975,"path":1976,"stem":1977},"Вкладені Маршрути та Макети","/javascript/react/react-router/nested-routes-and-layouts","03.javascript/04.react/05.react-router/03.nested-routes-and-layouts",{"title":1979,"path":1980,"stem":1981},"Динамічні Маршрути та Параметри","/javascript/react/react-router/dynamic-routing","03.javascript/04.react/05.react-router/04.dynamic-routing",{"title":1983,"path":1984,"stem":1985},"Data APIs: Loaders та Actions","/javascript/react/react-router/data-loading","03.javascript/04.react/05.react-router/05.data-loading",{"title":1987,"path":1988,"stem":1989},"Просунуті Патерни","/javascript/react/react-router/advanced-patterns","03.javascript/04.react/05.react-router/06.advanced-patterns",{"title":1991,"path":1992,"stem":1993},"Legacy Routing: Компонентний підхід","/javascript/react/react-router/legacy-routing","03.javascript/04.react/05.react-router/07.legacy-routing",{"title":1995,"icon":132,"path":1996,"stem":1997,"children":1998},"Redux","/javascript/react/redux","03.javascript/04.react/06.redux/index",[1999,2001,2017,2046,2055,2076,2092,2121],{"title":2000,"path":1996,"stem":1997},"Redux: Еволюція управління станом",{"title":14,"icon":15,"path":2002,"stem":2003,"children":2004,"page":59},"/javascript/react/redux/fundamentals","03.javascript/04.react/06.redux/01.fundamentals",[2005,2009,2013],{"title":2006,"path":2007,"stem":2008},"Вступ до State Management","/javascript/react/redux/fundamentals/intro-state-management","03.javascript/04.react/06.redux/01.fundamentals/01.intro-state-management",{"title":2010,"path":2011,"stem":2012},"Філософія Redux та Три Принципи","/javascript/react/redux/fundamentals/redux-philosophy","03.javascript/04.react/06.redux/01.fundamentals/02.redux-philosophy",{"title":2014,"path":2015,"stem":2016},"Чисті функції та Іммутабельність","/javascript/react/redux/fundamentals/pure-functions-immutability","03.javascript/04.react/06.redux/01.fundamentals/03.pure-functions-immutability",{"title":2018,"icon":132,"path":2019,"stem":2020,"children":2021,"page":59},"Classic Redux","/javascript/react/redux/classic-redux","03.javascript/04.react/06.redux/02.classic-redux",[2022,2026,2030,2034,2038,2042],{"title":2023,"path":2024,"stem":2025},"Створення Store (Classic Redux)","/javascript/react/redux/classic-redux/store-setup","03.javascript/04.react/06.redux/02.classic-redux/01.store-setup",{"title":2027,"path":2028,"stem":2029},"Actions, Constants та Action Creators","/javascript/react/redux/classic-redux/actions-constants","03.javascript/04.react/06.redux/02.classic-redux/02.actions-constants",{"title":2031,"path":2032,"stem":2033},"Логіка Reducers","/javascript/react/redux/classic-redux/reducers","03.javascript/04.react/06.redux/02.classic-redux/03.reducers",{"title":2035,"path":2036,"stem":2037},"Комбінування Reducers (Root Reducer)","/javascript/react/redux/classic-redux/data-flow","03.javascript/04.react/06.redux/02.classic-redux/04.data-flow",{"title":2039,"path":2040,"stem":2041},"Підключення до React (React-Redux)","/javascript/react/redux/classic-redux/react-redux-connection","03.javascript/04.react/06.redux/02.classic-redux/05.react-redux-connection",{"title":2043,"path":2044,"stem":2045},"Middleware та Асинхронність (Redux Thunk)","/javascript/react/redux/classic-redux/middleware-thunk","03.javascript/04.react/06.redux/02.classic-redux/06.middleware-thunk",{"title":2047,"icon":132,"path":2048,"stem":2049,"children":2050,"page":59},"Transition To Rtk","/javascript/react/redux/transition-to-rtk","03.javascript/04.react/06.redux/03.transition-to-rtk",[2051],{"title":2052,"path":2053,"stem":2054},"Проблеми класичного Redux","/javascript/react/redux/transition-to-rtk/problems-with-classic","03.javascript/04.react/06.redux/03.transition-to-rtk/01.problems-with-classic",{"title":2056,"icon":132,"path":2057,"stem":2058,"children":2059,"page":59},"Redux Toolkit","/javascript/react/redux/redux-toolkit","03.javascript/04.react/06.redux/04.redux-toolkit",[2060,2064,2068,2072],{"title":2061,"path":2062,"stem":2063},"Налаштування Store з 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дружити","/java/pr2/impedance-mismatch","04.java/pr2/09.impedance-mismatch",{"title":2285,"path":2286,"stem":2287},"JDBC: Перший контакт із базою даних","/java/pr2/jdbc-fundamentals","04.java/pr2/10.jdbc-fundamentals",{"title":2289,"path":2290,"stem":2291},"Якість коду: Spotless, SpotBugs та SonarQube","/java/pr2/10a.code-quality","04.java/pr2/10a.code-quality",{"title":2293,"path":2294,"stem":2295},"Connection Pool: Патерн Object Pool для JDBC-з'єднань","/java/pr2/connection-pool","04.java/pr2/11.connection-pool",{"title":2297,"path":2298,"stem":2299},"Row Data Gateway: Об'єкт як обгортка рядка таблиці","/java/pr2/row-data-gateway","04.java/pr2/12.row-data-gateway",{"title":2301,"path":2302,"stem":2303},"Table Data Gateway: Фасад таблиці як архітектурний відступ","/java/pr2/table-data-gateway","04.java/pr2/13.table-data-gateway",{"title":2305,"path":2306,"stem":2307},"Repository + Data Mapper: Правильна шарова архітектура з JDBC","/java/pr2/repository-data-mapper","04.java/pr2/14.repository-data-mapper",{"title":2309,"path":2310,"stem":2311},"Identity Map: Кешування сутностей у рамках сесії","/java/pr2/identity-map","04.java/pr2/15.identity-map",{"title":2313,"path":2314,"stem":2315},"Unit of Work: Відстеження змін і координація JDBC-транзакцій","/java/pr2/unit-of-work","04.java/pr2/16.unit-of-work",{"title":2317,"path":2318,"stem":2319},"Strategy: Замінювані SQL-стратегії для підтримки різних СУБД","/java/pr2/strategy-sql","04.java/pr2/17.strategy-sql",{"title":2321,"path":2322,"stem":2323},"Proxy: Lazy Loading для One-To-Many колекцій","/java/pr2/proxy-lazy-loading","04.java/pr2/18.proxy-lazy-loading",{"title":2325,"path":2326,"stem":2327},"Generic Repository через Java Reflection: анотації та динамічний SQL","/java/pr2/generic-repository-reflection","04.java/pr2/19.generic-repository-reflection",{"title":2329,"path":2330,"stem":2331},"Specification Pattern: Композиція бізнес-правил для складних 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БД","/databases/intro/logical-schema","06.databases/01.intro/04.logical-schema",{"title":2381,"path":2382,"stem":2383},"Класифікація таблиць","/databases/intro/table-classification","06.databases/01.intro/05.table-classification",{"title":2385,"path":2386,"stem":2387},"PlantUML для баз даних","/databases/intro/plantuml-diagrams","06.databases/01.intro/06.plantuml-diagrams",{"title":2389,"icon":2354,"path":2390,"stem":2391,"children":2392,"page":59},"MS SQL Server Start","/databases/ms-sql-server-start","06.databases/02.ms-sql-server-start",[2393,2397,2403,2407],{"title":2394,"path":2395,"stem":2396},"Типи даних у MS SQL Server","/databases/ms-sql-server-start/data-types","06.databases/02.ms-sql-server-start/01.data-types",{"title":2398,"path":2399,"stem":2400,"children":2401},"Індекси у MS SQL 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TABLE)","/databases/sql/ddl-create-table","06.databases/03.sql/01.ddl-create-table",{"title":2425,"path":2426,"stem":2427},"DDL - Зміна та видалення таблиць (ALTER, DROP)","/databases/sql/ddl-alter-drop-table","06.databases/03.sql/02.ddl-alter-drop-table",{"title":2429,"path":2430,"stem":2431},"SELECT запити - Основи","/databases/sql/select-queries-fundamentals","06.databases/03.sql/03.select-queries-fundamentals",{"title":2433,"path":2434,"stem":2435},"SELECT запити - Розширені можливості","/databases/sql/select-queries-advanced","06.databases/03.sql/04.select-queries-advanced",{"title":2437,"path":2438,"stem":2439},"INSERT запити - Додавання даних","/databases/sql/insert-queries","06.databases/03.sql/05.insert-queries",{"title":2441,"path":2442,"stem":2443},"UPDATE та DELETE запити","/databases/sql/update-delete-queries","06.databases/03.sql/06.update-delete-queries",{"title":2445,"path":2446,"stem":2447},"Транзакції в SQL","/databases/sql/transactions","06.databases/03.sql/07.transactions",{"title":2449,"icon":2354,"path":2450,"stem":2451,"children":2452,"page":59},"Multi Table Databases","/databases/multi-table-databases","06.databases/04.multi-table-databases",[2453,2457,2461,2465,2469,2473],{"title":2454,"path":2455,"stem":2456},"Зв'язки та нормалізація БД","/databases/multi-table-databases/relationships-and-normalization","06.databases/04.multi-table-databases/00.relationships-and-normalization",{"title":2458,"path":2459,"stem":2460},"INNER JOIN - З'єднання таблиць","/databases/multi-table-databases/inner-join","06.databases/04.multi-table-databases/01.inner-join",{"title":2462,"path":2463,"stem":2464},"OUTER JOINs - LEFT, RIGHT, FULL","/databases/multi-table-databases/outer-joins","06.databases/04.multi-table-databases/02.outer-joins",{"title":2466,"path":2467,"stem":2468},"CROSS та SELF JOINs","/databases/multi-table-databases/cross-self-joins","06.databases/04.multi-table-databases/03.cross-self-joins",{"title":2470,"path":2471,"stem":2472},"Підзапити (Subqueries)","/databases/multi-table-databases/subqueries","06.databases/04.multi-table-databases/04.subqueries",{"title":2474,"path":2475,"stem":2476},"Агрегації з JOIN","/databases/multi-table-databases/aggregations-with-joins","06.databases/04.multi-table-databases/05.aggregations-with-joins",{"title":2478,"icon":2479,"path":2480,"stem":2481,"children":2482,"page":59},"Aggregate Functions","i-lucide-calculator","/databases/aggregate-functions","06.databases/05.aggregate-functions",[2483,2487,2491],{"title":2484,"path":2485,"stem":2486},"Функції агрегування в MS SQL Server","/databases/aggregate-functions/introduction-aggregate-functions","06.databases/05.aggregate-functions/01.introduction-aggregate-functions",{"title":2488,"path":2489,"stem":2490},"Групування даних в MS SQL Server","/databases/aggregate-functions/grouping-data","06.databases/05.aggregate-functions/02.grouping-data",{"title":2492,"path":2493,"stem":2494},"Підзапити з агрегатними функціями","/databases/aggregate-functions/subqueries-aggregates","06.databases/05.aggregate-functions/03.subqueries-aggregates",{"title":2496,"icon":2497,"path":2498,"stem":2499,"children":2500,"page":59},"Тригери та зберігаємі процедури","i-lucide-database-zap","/databases/triggers-stored-procedures","06.databases/07.triggers-stored-procedures",[2501,2505,2509,2513,2517,2521,2525],{"title":2502,"path":2503,"stem":2504},"DML-тригери","/databases/triggers-stored-procedures/dml-triggers","06.databases/07.triggers-stored-procedures/01.dml-triggers",{"title":2506,"path":2507,"stem":2508},"DDL-тригери","/databases/triggers-stored-procedures/ddl-triggers","06.databases/07.triggers-stored-procedures/02.ddl-triggers",{"title":2510,"path":2511,"stem":2512},"Transact-SQL 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Docker","/tools/docker/networking-basics","07.tools/01.docker/14.networking-basics",{"title":2630,"path":2631,"stem":2632},"Змінні оточення та конфігурація","/tools/docker/environment-and-configuration","07.tools/01.docker/15.environment-and-configuration",{"title":2634,"path":2635,"stem":2636},"Docker Compose — оркестрація контейнерів","/tools/docker/docker-compose-basics","07.tools/01.docker/16.docker-compose-basics",{"title":2638,"path":2639,"stem":2640},"Docker Compose — Multi-Service застосунки","/tools/docker/compose-multi-service","07.tools/01.docker/17.compose-multi-service",{"title":2642,"icon":2643,"path":2644,"stem":2645,"children":2646,"page":59},"Software Engineering","i-lucide-code-2","/software-engineering","09.software-engineering",[2647,2651,2655,2659,2663,2667,2671,2675,2679,2683,2687],{"title":2648,"path":2649,"stem":2650},"1. 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Сучасний CSS","/html-css/css-variables-methodologies","12.html-css/21.css-variables-methodologies",{"title":2881,"path":2882,"stem":2883},"Сучасний CSS 2023–2025: Нові можливості","/html-css/css-modern-features","12.html-css/22.css-modern-features",{"title":2885,"path":2886,"stem":2887},"CSS Nesting, @layer, @scope та @property: нативний препроцесор","/html-css/22a.css-nesting-modern-syntax","12.html-css/22a.css-nesting-modern-syntax",{"title":2889,"path":2890,"stem":2891},"CSS для форм та інтерактивних станів","/html-css/css-forms-interactive-states","12.html-css/23.css-forms-interactive-states",{"title":2893,"path":2894,"stem":2895},"Доступність у CSS (CSS Accessibility)","/html-css/css-accessibility","12.html-css/24.css-accessibility",{"title":2897,"path":2898,"stem":2899},"CSS-функції та сучасні sizing primitives","/html-css/css-functions-sizing","12.html-css/25.css-functions-sizing",{"title":2901,"path":2902,"stem":2903},"Rendering Pipeline і CSS Performance","/html-css/css-rendering-performance","12.html-css/26.css-rendering-performance",{"title":2905,"path":2906,"stem":2907},"CSS Best Practices: типові ситуації та правильні рішення","/html-css/css-best-practices","12.html-css/27.css-best-practices",{"title":2909,"path":2910,"stem":2911,"children":2912,"page":59},"Tailwind","/tailwind","21.tailwind",[2913,2917,2921,2925,2929,2933,2937,2941],{"title":2914,"path":2915,"stem":2916},"Що таке Tailwind CSS і навіщо він потрібен","/tailwind/tailwind-intro-philosophy","21.tailwind/01.tailwind-intro-philosophy",{"title":2918,"path":2919,"stem":2920},"Встановлення та налаштування Tailwind CSS v4","/tailwind/tailwind-installation-setup","21.tailwind/02.tailwind-installation-setup",{"title":2922,"path":2923,"stem":2924},"Utility-класи: основи та система Tailwind","/tailwind/tailwind-utility-classes-core","21.tailwind/03.tailwind-utility-classes-core",{"title":2926,"path":2927,"stem":2928},"Layout: Flexbox та Grid через Tailwind","/tailwind/tailwind-flexbox-grid","21.tailwind/04.tailwind-flexbox-grid",{"title":2930,"path":2931,"stem":2932},"Кастомізація теми через @theme у Tailwind v4","/tailwind/tailwind-theme-customization","21.tailwind/05.tailwind-theme-customization",{"title":2934,"path":2935,"stem":2936},"Варіанти: hover, focus, responsive, dark mode та нові v4","/tailwind/tailwind-variants-states","21.tailwind/06.tailwind-variants-states",{"title":2938,"path":2939,"stem":2940},"Типографіка та система кольорів у Tailwind v4","/tailwind/tailwind-typography-colors","21.tailwind/07.tailwind-typography-colors",{"title":2942,"path":2943,"stem":2944},"Компоненти та повторюваність: @apply, @utility та патерни","/tailwind/tailwind-components-patterns","21.tailwind/08.tailwind-components-patterns",{"title":2946,"path":2947,"stem":2948},"Showcase Компонентів kostyl.dev","/test-new-components","98.test-new-components",{"id":2950,"title":555,"body":2951,"description":8783,"extension":8784,"links":8785,"meta":8786,"navigation":3147,"path":556,"seo":8787,"stem":557,"__hash__":8788},"docs/01.csharp/10.ef-core/16.linq-queries-part1.md",{"type":2952,"value":2953,"toc":8742},"minimark",[2954,2959,2964,2968,2980,2997,3193,3293,3317,3328,3332,3511,3527,3530,3534,3544,3548,3559,3722,3726,3736,3950,3957,3959,3963,3967,4384,4388,4797,4801,5137,5182,5184,5188,5195,5199,5368,5372,5379,5603,5610,5614,5937,5943,5945,5949,5954,5958,6380,6384,6527,6531,6805,6824,6826,6830,7176,7178,7182,7440,7444,7568,7570,7574,7578,7677,7681,7873,7877,8030,8032,8036,8040,8270,8274,8354,8358,8624,8626,8630,8633,8712,8738],[2955,2956,2958],"h1",{"id":2957},"linq-запити-в-ef-core","LINQ-запити в EF Core",[2960,2961,2963],"h2",{"id":2962},"як-ef-core-перетворює-linq-у-sql","Як EF Core перетворює LINQ у SQL",[2965,2966,2967],"p",{},"Одна з найпотужніших рис EF Core — здатність перетворювати C# LINQ-вирази у SQL-запити. Розробник пише звичний C# код, а база даних виконує оптимізований SQL. Але щоб правильно використовувати цю магію, потрібно зрозуміти механізм «під капотом».",[2969,2970,2972,2973],"h3",{"id":2971},"iqueryable-vs-ienumerable-ключова-різниця","IQueryable",[2974,2975,2976,2977],"t",{}," vs IEnumerable",[2974,2978,2979],{},": ключова різниця",[2965,2981,2982,2983,2987,2988,2992,2993,2996],{},"Перше і найважливіше, що потрібно знати: методи LINQ поводяться ",[2984,2985,2986],"strong",{},"по-різному"," залежно від того, застосовуються вони до ",[2989,2990,2991],"code",{},"IQueryable\u003CT>"," чи ",[2989,2994,2995],{},"IEnumerable\u003CT>",".",[2998,2999,3004],"pre",{"className":3000,"code":3001,"language":3002,"meta":3003,"style":3003},"language-csharp shiki shiki-themes light-plus dark-plus dark-plus","// context.Products → IQueryable\u003CProduct>\n// Кожен LINQ-метод БУДУЄ вираз, не виконує його\nIQueryable\u003CProduct> query = context.Products\n    .Where(p => p.Price > 1000)    // додає WHERE до expression tree\n    .OrderBy(p => p.Name)           // додає ORDER BY до expression tree\n    .Take(10);                      // додає TOP 10 до expression tree\n// ← ЖОДЕН SQL ЩЕ НЕ ВИКОНАНО!\n\n// Матеріалізація: тут виконується реальний SQL SELECT\nList\u003CProduct> products = await query.ToListAsync();\n// SQL: SELECT TOP 10 * FROM Products WHERE Price > 1000 ORDER BY Name\n","csharp","",[2989,3005,3006,3015,3021,3052,3090,3117,3136,3142,3149,3155,3187],{"__ignoreMap":3003},[3007,3008,3011],"span",{"class":3009,"line":3010},"line",1,[3007,3012,3014],{"class":3013},"spJ8K","// context.Products → IQueryable\u003CProduct>\n",[3007,3016,3018],{"class":3009,"line":3017},2,[3007,3019,3020],{"class":3013},"// Кожен LINQ-метод БУДУЄ вираз, не виконує його\n",[3007,3022,3024,3027,3031,3034,3037,3041,3044,3047,3049],{"class":3009,"line":3023},3,[3007,3025,2972],{"class":3026},"sN1BT",[3007,3028,3030],{"class":3029},"sHH4Y","\u003C",[3007,3032,3033],{"class":3026},"Product",[3007,3035,3036],{"class":3029},"> ",[3007,3038,3040],{"class":3039},"siwwj","query",[3007,3042,3043],{"class":3029}," = ",[3007,3045,3046],{"class":3039},"context",[3007,3048,2996],{"class":3029},[3007,3050,3051],{"class":3039},"Products\n",[3007,3053,3055,3058,3062,3065,3067,3070,3072,3074,3077,3080,3084,3087],{"class":3009,"line":3054},4,[3007,3056,3057],{"class":3029},"    .",[3007,3059,3061],{"class":3060},"s8Opu","Where",[3007,3063,3064],{"class":3029},"(",[3007,3066,2965],{"class":3039},[3007,3068,3069],{"class":3029}," => ",[3007,3071,2965],{"class":3039},[3007,3073,2996],{"class":3029},[3007,3075,3076],{"class":3039},"Price",[3007,3078,3079],{"class":3029}," > ",[3007,3081,3083],{"class":3082},"sJj4R","1000",[3007,3085,3086],{"class":3029},")    ",[3007,3088,3089],{"class":3013},"// додає WHERE до expression tree\n",[3007,3091,3093,3095,3098,3100,3102,3104,3106,3108,3111,3114],{"class":3009,"line":3092},5,[3007,3094,3057],{"class":3029},[3007,3096,3097],{"class":3060},"OrderBy",[3007,3099,3064],{"class":3029},[3007,3101,2965],{"class":3039},[3007,3103,3069],{"class":3029},[3007,3105,2965],{"class":3039},[3007,3107,2996],{"class":3029},[3007,3109,3110],{"class":3039},"Name",[3007,3112,3113],{"class":3029},")           ",[3007,3115,3116],{"class":3013},"// додає ORDER BY до expression tree\n",[3007,3118,3120,3122,3125,3127,3130,3133],{"class":3009,"line":3119},6,[3007,3121,3057],{"class":3029},[3007,3123,3124],{"class":3060},"Take",[3007,3126,3064],{"class":3029},[3007,3128,3129],{"class":3082},"10",[3007,3131,3132],{"class":3029},");                      ",[3007,3134,3135],{"class":3013},"// додає TOP 10 до expression tree\n",[3007,3137,3139],{"class":3009,"line":3138},7,[3007,3140,3141],{"class":3013},"// ← ЖОДЕН SQL ЩЕ НЕ ВИКОНАНО!\n",[3007,3143,3145],{"class":3009,"line":3144},8,[3007,3146,3148],{"emptyLinePlaceholder":3147},true,"\n",[3007,3150,3152],{"class":3009,"line":3151},9,[3007,3153,3154],{"class":3013},"// Матеріалізація: тут виконується реальний SQL SELECT\n",[3007,3156,3158,3161,3163,3165,3167,3170,3172,3176,3179,3181,3184],{"class":3009,"line":3157},10,[3007,3159,3160],{"class":3026},"List",[3007,3162,3030],{"class":3029},[3007,3164,3033],{"class":3026},[3007,3166,3036],{"class":3029},[3007,3168,3169],{"class":3039},"products",[3007,3171,3043],{"class":3029},[3007,3173,3175],{"class":3174},"su1O8","await",[3007,3177,3178],{"class":3039}," query",[3007,3180,2996],{"class":3029},[3007,3182,3183],{"class":3060},"ToListAsync",[3007,3185,3186],{"class":3029},"();\n",[3007,3188,3190],{"class":3009,"line":3189},11,[3007,3191,3192],{"class":3013},"// SQL: SELECT TOP 10 * FROM Products WHERE Price > 1000 ORDER BY Name\n",[2998,3194,3196],{"className":3000,"code":3195,"language":3002,"meta":3003,"style":3003},"// НЕБЕЗПЕЧНО: перетворення на IEnumerable занадто рано\nIEnumerable\u003CProduct> allProducts = await context.Products.ToListAsync(); // ← все в пам'ять\nvar expensive = allProducts.Where(p => p.Price > 1000).Take(10);\n// SQL: SELECT * FROM Products (ВСІ записи!)\n// Фільтр Where і Take виконуються в C#, а не в SQL\n",[2989,3197,3198,3203,3239,3283,3288],{"__ignoreMap":3003},[3007,3199,3200],{"class":3009,"line":3010},[3007,3201,3202],{"class":3013},"// НЕБЕЗПЕЧНО: перетворення на IEnumerable занадто рано\n",[3007,3204,3205,3208,3210,3212,3214,3217,3219,3221,3224,3226,3229,3231,3233,3236],{"class":3009,"line":3017},[3007,3206,3207],{"class":3026},"IEnumerable",[3007,3209,3030],{"class":3029},[3007,3211,3033],{"class":3026},[3007,3213,3036],{"class":3029},[3007,3215,3216],{"class":3039},"allProducts",[3007,3218,3043],{"class":3029},[3007,3220,3175],{"class":3174},[3007,3222,3223],{"class":3039}," context",[3007,3225,2996],{"class":3029},[3007,3227,3228],{"class":3039},"Products",[3007,3230,2996],{"class":3029},[3007,3232,3183],{"class":3060},[3007,3234,3235],{"class":3029},"(); ",[3007,3237,3238],{"class":3013},"// ← все в пам'ять\n",[3007,3240,3241,3244,3247,3249,3251,3253,3255,3257,3259,3261,3263,3265,3267,3269,3271,3274,3276,3278,3280],{"class":3009,"line":3023},[3007,3242,3243],{"class":3174},"var",[3007,3245,3246],{"class":3039}," expensive",[3007,3248,3043],{"class":3029},[3007,3250,3216],{"class":3039},[3007,3252,2996],{"class":3029},[3007,3254,3061],{"class":3060},[3007,3256,3064],{"class":3029},[3007,3258,2965],{"class":3039},[3007,3260,3069],{"class":3029},[3007,3262,2965],{"class":3039},[3007,3264,2996],{"class":3029},[3007,3266,3076],{"class":3039},[3007,3268,3079],{"class":3029},[3007,3270,3083],{"class":3082},[3007,3272,3273],{"class":3029},").",[3007,3275,3124],{"class":3060},[3007,3277,3064],{"class":3029},[3007,3279,3129],{"class":3082},[3007,3281,3282],{"class":3029},");\n",[3007,3284,3285],{"class":3009,"line":3054},[3007,3286,3287],{"class":3013},"// SQL: SELECT * FROM Products (ВСІ записи!)\n",[3007,3289,3290],{"class":3009,"line":3092},[3007,3291,3292],{"class":3013},"// Фільтр Where і Take виконуються в C#, а не в SQL\n",[2965,3294,3295,3299,3300,3303,3304,3307,3308,3307,3311,3307,3314,3273],{},[2984,3296,3297],{},[2989,3298,2991],{}," — ленивий (lazy) запит. LINQ-методи будують ",[2984,3301,3302],{},"Expression Tree"," (дерево виразів), яке EF Core перекладає у SQL лише при матеріалізації (",[2989,3305,3306],{},".ToList()",", ",[2989,3309,3310],{},".FirstOrDefault()",[2989,3312,3313],{},".Count()",[2989,3315,3316],{},"await foreach",[2965,3318,3319,3323,3324,3327],{},[2984,3320,3321],{},[2989,3322,2995],{}," — вже матеріалізована колекція у пам'яті. LINQ-методи виконуються у ",[2984,3325,3326],{},"C#-пам'яті",", а не у базі.",[2969,3329,3331],{"id":3330},"expression-tree-що-будує-linq","Expression Tree: що будує LINQ",[2998,3333,3335],{"className":3000,"code":3334,"language":3002,"meta":3003,"style":3003},"// Цей вираз:\nvar query = context.Products\n    .Where(p => p.Price > 1000 && p.IsActive)\n    .Select(p => new { p.Id, p.Name, p.Price });\n\n// Зберігається як Expression Tree (спрощено):\n// MethodCallExpression(Select,\n//   MethodCallExpression(Where,\n//     DbSet\u003CProduct>,\n//     Lambda(p => And(\n//       GreaterThan(Property(p, \"Price\"), Constant(1000)),\n//       Property(p, \"IsActive\")))),\n//   Lambda(p => new { p.Id, p.Name, p.Price }))\n\n// EF Core's QueryTranslator читає це дерево і генерує:\n// SELECT p.Id, p.Name, p.Price\n// FROM Products p\n// WHERE p.Price > 1000 AND p.IsActive = 1\n",[2989,3336,3337,3342,3356,3391,3436,3440,3445,3450,3455,3460,3465,3470,3476,3482,3487,3493,3499,3505],{"__ignoreMap":3003},[3007,3338,3339],{"class":3009,"line":3010},[3007,3340,3341],{"class":3013},"// Цей вираз:\n",[3007,3343,3344,3346,3348,3350,3352,3354],{"class":3009,"line":3017},[3007,3345,3243],{"class":3174},[3007,3347,3178],{"class":3039},[3007,3349,3043],{"class":3029},[3007,3351,3046],{"class":3039},[3007,3353,2996],{"class":3029},[3007,3355,3051],{"class":3039},[3007,3357,3358,3360,3362,3364,3366,3368,3370,3372,3374,3376,3378,3381,3383,3385,3388],{"class":3009,"line":3023},[3007,3359,3057],{"class":3029},[3007,3361,3061],{"class":3060},[3007,3363,3064],{"class":3029},[3007,3365,2965],{"class":3039},[3007,3367,3069],{"class":3029},[3007,3369,2965],{"class":3039},[3007,3371,2996],{"class":3029},[3007,3373,3076],{"class":3039},[3007,3375,3079],{"class":3029},[3007,3377,3083],{"class":3082},[3007,3379,3380],{"class":3029}," && ",[3007,3382,2965],{"class":3039},[3007,3384,2996],{"class":3029},[3007,3386,3387],{"class":3039},"IsActive",[3007,3389,3390],{"class":3029},")\n",[3007,3392,3393,3395,3398,3400,3402,3404,3407,3410,3412,3414,3417,3419,3421,3423,3425,3427,3429,3431,3433],{"class":3009,"line":3054},[3007,3394,3057],{"class":3029},[3007,3396,3397],{"class":3060},"Select",[3007,3399,3064],{"class":3029},[3007,3401,2965],{"class":3039},[3007,3403,3069],{"class":3029},[3007,3405,3406],{"class":3174},"new",[3007,3408,3409],{"class":3029}," { ",[3007,3411,2965],{"class":3039},[3007,3413,2996],{"class":3029},[3007,3415,3416],{"class":3039},"Id",[3007,3418,3307],{"class":3029},[3007,3420,2965],{"class":3039},[3007,3422,2996],{"class":3029},[3007,3424,3110],{"class":3039},[3007,3426,3307],{"class":3029},[3007,3428,2965],{"class":3039},[3007,3430,2996],{"class":3029},[3007,3432,3076],{"class":3039},[3007,3434,3435],{"class":3029}," });\n",[3007,3437,3438],{"class":3009,"line":3092},[3007,3439,3148],{"emptyLinePlaceholder":3147},[3007,3441,3442],{"class":3009,"line":3119},[3007,3443,3444],{"class":3013},"// Зберігається як Expression Tree (спрощено):\n",[3007,3446,3447],{"class":3009,"line":3138},[3007,3448,3449],{"class":3013},"// MethodCallExpression(Select,\n",[3007,3451,3452],{"class":3009,"line":3144},[3007,3453,3454],{"class":3013},"//   MethodCallExpression(Where,\n",[3007,3456,3457],{"class":3009,"line":3151},[3007,3458,3459],{"class":3013},"//     DbSet\u003CProduct>,\n",[3007,3461,3462],{"class":3009,"line":3157},[3007,3463,3464],{"class":3013},"//     Lambda(p => And(\n",[3007,3466,3467],{"class":3009,"line":3189},[3007,3468,3469],{"class":3013},"//       GreaterThan(Property(p, \"Price\"), Constant(1000)),\n",[3007,3471,3473],{"class":3009,"line":3472},12,[3007,3474,3475],{"class":3013},"//       Property(p, \"IsActive\")))),\n",[3007,3477,3479],{"class":3009,"line":3478},13,[3007,3480,3481],{"class":3013},"//   Lambda(p => new { p.Id, p.Name, p.Price }))\n",[3007,3483,3485],{"class":3009,"line":3484},14,[3007,3486,3148],{"emptyLinePlaceholder":3147},[3007,3488,3490],{"class":3009,"line":3489},15,[3007,3491,3492],{"class":3013},"// EF Core's QueryTranslator читає це дерево і генерує:\n",[3007,3494,3496],{"class":3009,"line":3495},16,[3007,3497,3498],{"class":3013},"// SELECT p.Id, p.Name, p.Price\n",[3007,3500,3502],{"class":3009,"line":3501},17,[3007,3503,3504],{"class":3013},"// FROM Products p\n",[3007,3506,3508],{"class":3009,"line":3507},18,[3007,3509,3510],{"class":3013},"// WHERE p.Price > 1000 AND p.IsActive = 1\n",[2965,3512,3513,3514,3307,3516,3307,3518,3307,3520,3307,3523,3526],{},"Кожен LINQ-метод (",[2989,3515,3061],{},[2989,3517,3397],{},[2989,3519,3097],{},[2989,3521,3522],{},"GroupBy",[2989,3524,3525],{},"Join",") відповідає SQL-оператору. EF Core «знає» як перекласти їх. Але не всі C# вирази транслюються — про це далі.",[3528,3529],"hr",{},[2960,3531,3533],{"id":3532},"server-evaluation-vs-client-evaluation","Server Evaluation vs Client Evaluation",[2965,3535,3536,3539,3540,3543],{},[2984,3537,3538],{},"Server Evaluation"," — підрахунок відбувається у БД (ідеально). ",[2984,3541,3542],{},"Client Evaluation"," — дані спочатку завантажуються у C#-пам'ять, потім фільтруються/трансформуються там (дорого, іноді небезпечно).",[2969,3545,3547],{"id":3546},"автоматична-client-evaluation-у-ef-core-3","Автоматична Client Evaluation у EF Core 3+",[2965,3549,3550,3551,3554,3555,3558],{},"До EF Core 3 деякі вирази автоматично «проваливалися» у client evaluation без явного попередження. З EF Core 3 — якщо вираз ",[2984,3552,3553],{},"не може"," транслюватися у SQL → ",[2989,3556,3557],{},"InvalidOperationException",". Це краща поведінка: краще помилка, ніж неявне завантаження мільйону рядків.",[2998,3560,3562],{"className":3000,"code":3561,"language":3002,"meta":3003,"style":3003},"// ПОМИЛКА: власна C#-функція не транслюється в SQL\nstatic bool IsExpensiveProduct(Product p) => p.Price > 10000;\n\nvar expensive = await context.Products\n    .Where(p => IsExpensiveProduct(p)) // ← InvalidOperationException!\n    .ToListAsync();                     // EF Core не знає, як перекласти IsExpensiveProduct у SQL\n\n// РІШЕННЯ: розгорнути логіку безпосередньо\nvar expensive = await context.Products\n    .Where(p => p.Price > 10000) // ← транслюється у WHERE Price > 10000\n    .ToListAsync();\n",[2989,3563,3564,3569,3604,3608,3624,3649,3661,3665,3670,3686,3714],{"__ignoreMap":3003},[3007,3565,3566],{"class":3009,"line":3010},[3007,3567,3568],{"class":3013},"// ПОМИЛКА: власна C#-функція не транслюється в SQL\n",[3007,3570,3571,3574,3577,3580,3582,3584,3587,3590,3592,3594,3596,3598,3601],{"class":3009,"line":3017},[3007,3572,3573],{"class":3174},"static",[3007,3575,3576],{"class":3174}," bool",[3007,3578,3579],{"class":3060}," IsExpensiveProduct",[3007,3581,3064],{"class":3029},[3007,3583,3033],{"class":3026},[3007,3585,3586],{"class":3039}," p",[3007,3588,3589],{"class":3029},") => ",[3007,3591,2965],{"class":3039},[3007,3593,2996],{"class":3029},[3007,3595,3076],{"class":3039},[3007,3597,3079],{"class":3029},[3007,3599,3600],{"class":3082},"10000",[3007,3602,3603],{"class":3029},";\n",[3007,3605,3606],{"class":3009,"line":3023},[3007,3607,3148],{"emptyLinePlaceholder":3147},[3007,3609,3610,3612,3614,3616,3618,3620,3622],{"class":3009,"line":3054},[3007,3611,3243],{"class":3174},[3007,3613,3246],{"class":3039},[3007,3615,3043],{"class":3029},[3007,3617,3175],{"class":3174},[3007,3619,3223],{"class":3039},[3007,3621,2996],{"class":3029},[3007,3623,3051],{"class":3039},[3007,3625,3626,3628,3630,3632,3634,3636,3639,3641,3643,3646],{"class":3009,"line":3092},[3007,3627,3057],{"class":3029},[3007,3629,3061],{"class":3060},[3007,3631,3064],{"class":3029},[3007,3633,2965],{"class":3039},[3007,3635,3069],{"class":3029},[3007,3637,3638],{"class":3060},"IsExpensiveProduct",[3007,3640,3064],{"class":3029},[3007,3642,2965],{"class":3039},[3007,3644,3645],{"class":3029},")) ",[3007,3647,3648],{"class":3013},"// ← InvalidOperationException!\n",[3007,3650,3651,3653,3655,3658],{"class":3009,"line":3119},[3007,3652,3057],{"class":3029},[3007,3654,3183],{"class":3060},[3007,3656,3657],{"class":3029},"();                     ",[3007,3659,3660],{"class":3013},"// EF Core не знає, як перекласти IsExpensiveProduct у SQL\n",[3007,3662,3663],{"class":3009,"line":3138},[3007,3664,3148],{"emptyLinePlaceholder":3147},[3007,3666,3667],{"class":3009,"line":3144},[3007,3668,3669],{"class":3013},"// РІШЕННЯ: розгорнути логіку безпосередньо\n",[3007,3671,3672,3674,3676,3678,3680,3682,3684],{"class":3009,"line":3151},[3007,3673,3243],{"class":3174},[3007,3675,3246],{"class":3039},[3007,3677,3043],{"class":3029},[3007,3679,3175],{"class":3174},[3007,3681,3223],{"class":3039},[3007,3683,2996],{"class":3029},[3007,3685,3051],{"class":3039},[3007,3687,3688,3690,3692,3694,3696,3698,3700,3702,3704,3706,3708,3711],{"class":3009,"line":3157},[3007,3689,3057],{"class":3029},[3007,3691,3061],{"class":3060},[3007,3693,3064],{"class":3029},[3007,3695,2965],{"class":3039},[3007,3697,3069],{"class":3029},[3007,3699,2965],{"class":3039},[3007,3701,2996],{"class":3029},[3007,3703,3076],{"class":3039},[3007,3705,3079],{"class":3029},[3007,3707,3600],{"class":3082},[3007,3709,3710],{"class":3029},") ",[3007,3712,3713],{"class":3013},"// ← транслюється у WHERE Price > 10000\n",[3007,3715,3716,3718,3720],{"class":3009,"line":3189},[3007,3717,3057],{"class":3029},[3007,3719,3183],{"class":3060},[3007,3721,3186],{"class":3029},[2969,3723,3725],{"id":3724},"asenumerable-для-контрольованого-переходу","AsEnumerable() для контрольованого переходу",[2965,3727,3728,3729,3732,3733,3735],{},"Якщо частина логіки ",[2984,3730,3731],{},"справді"," не може виконатися в SQL — явно перейдіть до ",[2989,3734,3207],{}," у правильному місці:",[2998,3737,3739],{"className":3000,"code":3738,"language":3002,"meta":3003,"style":3003},"// Частина 1: SQL-фільтрація (у БД)\nvar fromDb = await context.Products\n    .Where(p => p.CategoryId == categoryId && p.IsActive)\n    .Select(p => new { p.Id, p.Name, p.Price, p.Tags }) // Tags — JSON стовпець\n    .ToListAsync(); // ← матеріалізація, перехід до C# пам'яті\n\n// Частина 2: C#-логіка яку не можна транслювати\nvar result = fromDb\n    .Where(p => MyComplexFilter(p.Tags))  // C# логіка — ОК, бо вже ToList\n    .OrderBy(p => MyCustomSort(p.Name))   // C# сортування\n    .ToList();\n",[2989,3740,3741,3746,3763,3798,3851,3862,3866,3871,3883,3912,3941],{"__ignoreMap":3003},[3007,3742,3743],{"class":3009,"line":3010},[3007,3744,3745],{"class":3013},"// Частина 1: SQL-фільтрація (у БД)\n",[3007,3747,3748,3750,3753,3755,3757,3759,3761],{"class":3009,"line":3017},[3007,3749,3243],{"class":3174},[3007,3751,3752],{"class":3039}," fromDb",[3007,3754,3043],{"class":3029},[3007,3756,3175],{"class":3174},[3007,3758,3223],{"class":3039},[3007,3760,2996],{"class":3029},[3007,3762,3051],{"class":3039},[3007,3764,3765,3767,3769,3771,3773,3775,3777,3779,3782,3785,3788,3790,3792,3794,3796],{"class":3009,"line":3023},[3007,3766,3057],{"class":3029},[3007,3768,3061],{"class":3060},[3007,3770,3064],{"class":3029},[3007,3772,2965],{"class":3039},[3007,3774,3069],{"class":3029},[3007,3776,2965],{"class":3039},[3007,3778,2996],{"class":3029},[3007,3780,3781],{"class":3039},"CategoryId",[3007,3783,3784],{"class":3029}," == ",[3007,3786,3787],{"class":3039},"categoryId",[3007,3789,3380],{"class":3029},[3007,3791,2965],{"class":3039},[3007,3793,2996],{"class":3029},[3007,3795,3387],{"class":3039},[3007,3797,3390],{"class":3029},[3007,3799,3800,3802,3804,3806,3808,3810,3812,3814,3816,3818,3820,3822,3824,3826,3828,3830,3832,3834,3836,3838,3840,3842,3845,3848],{"class":3009,"line":3054},[3007,3801,3057],{"class":3029},[3007,3803,3397],{"class":3060},[3007,3805,3064],{"class":3029},[3007,3807,2965],{"class":3039},[3007,3809,3069],{"class":3029},[3007,3811,3406],{"class":3174},[3007,3813,3409],{"class":3029},[3007,3815,2965],{"class":3039},[3007,3817,2996],{"class":3029},[3007,3819,3416],{"class":3039},[3007,3821,3307],{"class":3029},[3007,3823,2965],{"class":3039},[3007,3825,2996],{"class":3029},[3007,3827,3110],{"class":3039},[3007,3829,3307],{"class":3029},[3007,3831,2965],{"class":3039},[3007,3833,2996],{"class":3029},[3007,3835,3076],{"class":3039},[3007,3837,3307],{"class":3029},[3007,3839,2965],{"class":3039},[3007,3841,2996],{"class":3029},[3007,3843,3844],{"class":3039},"Tags",[3007,3846,3847],{"class":3029}," }) ",[3007,3849,3850],{"class":3013},"// Tags — JSON стовпець\n",[3007,3852,3853,3855,3857,3859],{"class":3009,"line":3092},[3007,3854,3057],{"class":3029},[3007,3856,3183],{"class":3060},[3007,3858,3235],{"class":3029},[3007,3860,3861],{"class":3013},"// ← матеріалізація, перехід до C# пам'яті\n",[3007,3863,3864],{"class":3009,"line":3119},[3007,3865,3148],{"emptyLinePlaceholder":3147},[3007,3867,3868],{"class":3009,"line":3138},[3007,3869,3870],{"class":3013},"// Частина 2: C#-логіка яку не можна транслювати\n",[3007,3872,3873,3875,3878,3880],{"class":3009,"line":3144},[3007,3874,3243],{"class":3174},[3007,3876,3877],{"class":3039}," result",[3007,3879,3043],{"class":3029},[3007,3881,3882],{"class":3039},"fromDb\n",[3007,3884,3885,3887,3889,3891,3893,3895,3898,3900,3902,3904,3906,3909],{"class":3009,"line":3151},[3007,3886,3057],{"class":3029},[3007,3888,3061],{"class":3060},[3007,3890,3064],{"class":3029},[3007,3892,2965],{"class":3039},[3007,3894,3069],{"class":3029},[3007,3896,3897],{"class":3060},"MyComplexFilter",[3007,3899,3064],{"class":3029},[3007,3901,2965],{"class":3039},[3007,3903,2996],{"class":3029},[3007,3905,3844],{"class":3039},[3007,3907,3908],{"class":3029},"))  ",[3007,3910,3911],{"class":3013},"// C# логіка — ОК, бо вже ToList\n",[3007,3913,3914,3916,3918,3920,3922,3924,3927,3929,3931,3933,3935,3938],{"class":3009,"line":3157},[3007,3915,3057],{"class":3029},[3007,3917,3097],{"class":3060},[3007,3919,3064],{"class":3029},[3007,3921,2965],{"class":3039},[3007,3923,3069],{"class":3029},[3007,3925,3926],{"class":3060},"MyCustomSort",[3007,3928,3064],{"class":3029},[3007,3930,2965],{"class":3039},[3007,3932,2996],{"class":3029},[3007,3934,3110],{"class":3039},[3007,3936,3937],{"class":3029},"))   ",[3007,3939,3940],{"class":3013},"// C# сортування\n",[3007,3942,3943,3945,3948],{"class":3009,"line":3189},[3007,3944,3057],{"class":3029},[3007,3946,3947],{"class":3060},"ToList",[3007,3949,3186],{"class":3029},[2965,3951,3952,3953,3956],{},"Ключ: ",[2984,3954,3955],{},"мінімізуйте кількість рядків",", що завантажуються у пам'ять. Виконуйте якомога більше у БД.",[3528,3958],{},[2960,3960,3962],{"id":3961},"базові-операції-where-orderby-skiptake","Базові операції: Where, OrderBy, Skip/Take",[2969,3964,3966],{"id":3965},"where-фільтрація","Where: фільтрація",[2998,3968,3970],{"className":3000,"code":3969,"language":3002,"meta":3003,"style":3003},"// Проста умова\nvar products = await context.Products\n    .Where(p => p.Price >= 1000 && p.Price \u003C= 50000)\n    .ToListAsync();\n// WHERE Price >= 1000 AND Price \u003C= 50000\n\n// Contains (IN оператор)\nvar categoryIds = new[] { 1, 3, 7 };\nvar byCategories = await context.Products\n    .Where(p => categoryIds.Contains(p.CategoryId))\n    .ToListAsync();\n// WHERE CategoryId IN (1, 3, 7)\n\n// String методи\nvar searchTerm = \"laptop\";\nvar byName = await context.Products\n    .Where(p => p.Name.Contains(searchTerm))\n    .ToListAsync();\n// WHERE Name LIKE '%laptop%'\n\nvar byPrefix = await context.Products\n    .Where(p => p.Name.StartsWith(\"Mac\"))\n    .ToListAsync();\n// WHERE Name LIKE 'Mac%'\n\n// EF.Functions — провайдерні функції\nvar byNameCI = await context.Products\n    .Where(p => EF.Functions.Like(p.Name, \"%laptop%\"))\n    .ToListAsync();\n// WHERE Name LIKE '%laptop%' (без LOWER())\n",[2989,3971,3972,3977,3994,4033,4041,4046,4050,4055,4085,4102,4133,4141,4146,4150,4155,4170,4187,4216,4224,4230,4235,4253,4284,4293,4299,4304,4310,4328,4369,4378],{"__ignoreMap":3003},[3007,3973,3974],{"class":3009,"line":3010},[3007,3975,3976],{"class":3013},"// Проста умова\n",[3007,3978,3979,3981,3984,3986,3988,3990,3992],{"class":3009,"line":3017},[3007,3980,3243],{"class":3174},[3007,3982,3983],{"class":3039}," products",[3007,3985,3043],{"class":3029},[3007,3987,3175],{"class":3174},[3007,3989,3223],{"class":3039},[3007,3991,2996],{"class":3029},[3007,3993,3051],{"class":3039},[3007,3995,3996,3998,4000,4002,4004,4006,4008,4010,4012,4015,4017,4019,4021,4023,4025,4028,4031],{"class":3009,"line":3023},[3007,3997,3057],{"class":3029},[3007,3999,3061],{"class":3060},[3007,4001,3064],{"class":3029},[3007,4003,2965],{"class":3039},[3007,4005,3069],{"class":3029},[3007,4007,2965],{"class":3039},[3007,4009,2996],{"class":3029},[3007,4011,3076],{"class":3039},[3007,4013,4014],{"class":3029}," >= ",[3007,4016,3083],{"class":3082},[3007,4018,3380],{"class":3029},[3007,4020,2965],{"class":3039},[3007,4022,2996],{"class":3029},[3007,4024,3076],{"class":3039},[3007,4026,4027],{"class":3029}," \u003C= ",[3007,4029,4030],{"class":3082},"50000",[3007,4032,3390],{"class":3029},[3007,4034,4035,4037,4039],{"class":3009,"line":3054},[3007,4036,3057],{"class":3029},[3007,4038,3183],{"class":3060},[3007,4040,3186],{"class":3029},[3007,4042,4043],{"class":3009,"line":3092},[3007,4044,4045],{"class":3013},"// WHERE Price >= 1000 AND Price \u003C= 50000\n",[3007,4047,4048],{"class":3009,"line":3119},[3007,4049,3148],{"emptyLinePlaceholder":3147},[3007,4051,4052],{"class":3009,"line":3138},[3007,4053,4054],{"class":3013},"// Contains (IN оператор)\n",[3007,4056,4057,4059,4062,4064,4066,4069,4072,4074,4077,4079,4082],{"class":3009,"line":3144},[3007,4058,3243],{"class":3174},[3007,4060,4061],{"class":3039}," categoryIds",[3007,4063,3043],{"class":3029},[3007,4065,3406],{"class":3174},[3007,4067,4068],{"class":3029},"[] { ",[3007,4070,4071],{"class":3082},"1",[3007,4073,3307],{"class":3029},[3007,4075,4076],{"class":3082},"3",[3007,4078,3307],{"class":3029},[3007,4080,4081],{"class":3082},"7",[3007,4083,4084],{"class":3029}," };\n",[3007,4086,4087,4089,4092,4094,4096,4098,4100],{"class":3009,"line":3151},[3007,4088,3243],{"class":3174},[3007,4090,4091],{"class":3039}," byCategories",[3007,4093,3043],{"class":3029},[3007,4095,3175],{"class":3174},[3007,4097,3223],{"class":3039},[3007,4099,2996],{"class":3029},[3007,4101,3051],{"class":3039},[3007,4103,4104,4106,4108,4110,4112,4114,4117,4119,4122,4124,4126,4128,4130],{"class":3009,"line":3157},[3007,4105,3057],{"class":3029},[3007,4107,3061],{"class":3060},[3007,4109,3064],{"class":3029},[3007,4111,2965],{"class":3039},[3007,4113,3069],{"class":3029},[3007,4115,4116],{"class":3039},"categoryIds",[3007,4118,2996],{"class":3029},[3007,4120,4121],{"class":3060},"Contains",[3007,4123,3064],{"class":3029},[3007,4125,2965],{"class":3039},[3007,4127,2996],{"class":3029},[3007,4129,3781],{"class":3039},[3007,4131,4132],{"class":3029},"))\n",[3007,4134,4135,4137,4139],{"class":3009,"line":3189},[3007,4136,3057],{"class":3029},[3007,4138,3183],{"class":3060},[3007,4140,3186],{"class":3029},[3007,4142,4143],{"class":3009,"line":3472},[3007,4144,4145],{"class":3013},"// WHERE CategoryId IN (1, 3, 7)\n",[3007,4147,4148],{"class":3009,"line":3478},[3007,4149,3148],{"emptyLinePlaceholder":3147},[3007,4151,4152],{"class":3009,"line":3484},[3007,4153,4154],{"class":3013},"// String методи\n",[3007,4156,4157,4159,4162,4164,4168],{"class":3009,"line":3489},[3007,4158,3243],{"class":3174},[3007,4160,4161],{"class":3039}," searchTerm",[3007,4163,3043],{"class":3029},[3007,4165,4167],{"class":4166},"sbdoH","\"laptop\"",[3007,4169,3603],{"class":3029},[3007,4171,4172,4174,4177,4179,4181,4183,4185],{"class":3009,"line":3495},[3007,4173,3243],{"class":3174},[3007,4175,4176],{"class":3039}," byName",[3007,4178,3043],{"class":3029},[3007,4180,3175],{"class":3174},[3007,4182,3223],{"class":3039},[3007,4184,2996],{"class":3029},[3007,4186,3051],{"class":3039},[3007,4188,4189,4191,4193,4195,4197,4199,4201,4203,4205,4207,4209,4211,4214],{"class":3009,"line":3501},[3007,4190,3057],{"class":3029},[3007,4192,3061],{"class":3060},[3007,4194,3064],{"class":3029},[3007,4196,2965],{"class":3039},[3007,4198,3069],{"class":3029},[3007,4200,2965],{"class":3039},[3007,4202,2996],{"class":3029},[3007,4204,3110],{"class":3039},[3007,4206,2996],{"class":3029},[3007,4208,4121],{"class":3060},[3007,4210,3064],{"class":3029},[3007,4212,4213],{"class":3039},"searchTerm",[3007,4215,4132],{"class":3029},[3007,4217,4218,4220,4222],{"class":3009,"line":3507},[3007,4219,3057],{"class":3029},[3007,4221,3183],{"class":3060},[3007,4223,3186],{"class":3029},[3007,4225,4227],{"class":3009,"line":4226},19,[3007,4228,4229],{"class":3013},"// WHERE Name LIKE '%laptop%'\n",[3007,4231,4233],{"class":3009,"line":4232},20,[3007,4234,3148],{"emptyLinePlaceholder":3147},[3007,4236,4238,4240,4243,4245,4247,4249,4251],{"class":3009,"line":4237},21,[3007,4239,3243],{"class":3174},[3007,4241,4242],{"class":3039}," byPrefix",[3007,4244,3043],{"class":3029},[3007,4246,3175],{"class":3174},[3007,4248,3223],{"class":3039},[3007,4250,2996],{"class":3029},[3007,4252,3051],{"class":3039},[3007,4254,4256,4258,4260,4262,4264,4266,4268,4270,4272,4274,4277,4279,4282],{"class":3009,"line":4255},22,[3007,4257,3057],{"class":3029},[3007,4259,3061],{"class":3060},[3007,4261,3064],{"class":3029},[3007,4263,2965],{"class":3039},[3007,4265,3069],{"class":3029},[3007,4267,2965],{"class":3039},[3007,4269,2996],{"class":3029},[3007,4271,3110],{"class":3039},[3007,4273,2996],{"class":3029},[3007,4275,4276],{"class":3060},"StartsWith",[3007,4278,3064],{"class":3029},[3007,4280,4281],{"class":4166},"\"Mac\"",[3007,4283,4132],{"class":3029},[3007,4285,4287,4289,4291],{"class":3009,"line":4286},23,[3007,4288,3057],{"class":3029},[3007,4290,3183],{"class":3060},[3007,4292,3186],{"class":3029},[3007,4294,4296],{"class":3009,"line":4295},24,[3007,4297,4298],{"class":3013},"// WHERE Name LIKE 'Mac%'\n",[3007,4300,4302],{"class":3009,"line":4301},25,[3007,4303,3148],{"emptyLinePlaceholder":3147},[3007,4305,4307],{"class":3009,"line":4306},26,[3007,4308,4309],{"class":3013},"// EF.Functions — провайдерні функції\n",[3007,4311,4313,4315,4318,4320,4322,4324,4326],{"class":3009,"line":4312},27,[3007,4314,3243],{"class":3174},[3007,4316,4317],{"class":3039}," byNameCI",[3007,4319,3043],{"class":3029},[3007,4321,3175],{"class":3174},[3007,4323,3223],{"class":3039},[3007,4325,2996],{"class":3029},[3007,4327,3051],{"class":3039},[3007,4329,4331,4333,4335,4337,4339,4341,4344,4346,4349,4351,4354,4356,4358,4360,4362,4364,4367],{"class":3009,"line":4330},28,[3007,4332,3057],{"class":3029},[3007,4334,3061],{"class":3060},[3007,4336,3064],{"class":3029},[3007,4338,2965],{"class":3039},[3007,4340,3069],{"class":3029},[3007,4342,4343],{"class":3039},"EF",[3007,4345,2996],{"class":3029},[3007,4347,4348],{"class":3039},"Functions",[3007,4350,2996],{"class":3029},[3007,4352,4353],{"class":3060},"Like",[3007,4355,3064],{"class":3029},[3007,4357,2965],{"class":3039},[3007,4359,2996],{"class":3029},[3007,4361,3110],{"class":3039},[3007,4363,3307],{"class":3029},[3007,4365,4366],{"class":4166},"\"%laptop%\"",[3007,4368,4132],{"class":3029},[3007,4370,4372,4374,4376],{"class":3009,"line":4371},29,[3007,4373,3057],{"class":3029},[3007,4375,3183],{"class":3060},[3007,4377,3186],{"class":3029},[3007,4379,4381],{"class":3009,"line":4380},30,[3007,4382,4383],{"class":3013},"// WHERE Name LIKE '%laptop%' (без LOWER())\n",[2969,4385,4387],{"id":4386},"orderby-сортування","OrderBy: сортування",[2998,4389,4391],{"className":3000,"code":4390,"language":3002,"meta":3003,"style":3003},"// Просте сортування\nvar byPrice = await context.Products\n    .OrderBy(p => p.Price)\n    .ToListAsync();\n// ORDER BY Price ASC\n\n// Сортування за кількома полями\nvar multiSort = await context.Products\n    .OrderBy(p => p.CategoryId)\n    .ThenByDescending(p => p.Price)\n    .ThenBy(p => p.Name)\n    .ToListAsync();\n// ORDER BY CategoryId ASC, Price DESC, Name ASC\n\n// Динамічне сортування (за параметром)\nstring sortField = \"price\"; // з HTTP параметра\nbool ascending = true;\n\nIQueryable\u003CProduct> query = context.Products;\nquery = sortField switch\n{\n    \"name\"  => ascending ? query.OrderBy(p => p.Name)  : query.OrderByDescending(p => p.Name),\n    \"price\" => ascending ? query.OrderBy(p => p.Price) : query.OrderByDescending(p => p.Price),\n    _       => query.OrderBy(p => p.Id)\n};\nvar sorted = await query.ToListAsync();\n",[2989,4392,4393,4398,4415,4435,4443,4448,4452,4457,4474,4494,4515,4536,4544,4549,4553,4558,4577,4592,4596,4618,4631,4636,4693,4745,4773,4778],{"__ignoreMap":3003},[3007,4394,4395],{"class":3009,"line":3010},[3007,4396,4397],{"class":3013},"// Просте сортування\n",[3007,4399,4400,4402,4405,4407,4409,4411,4413],{"class":3009,"line":3017},[3007,4401,3243],{"class":3174},[3007,4403,4404],{"class":3039}," byPrice",[3007,4406,3043],{"class":3029},[3007,4408,3175],{"class":3174},[3007,4410,3223],{"class":3039},[3007,4412,2996],{"class":3029},[3007,4414,3051],{"class":3039},[3007,4416,4417,4419,4421,4423,4425,4427,4429,4431,4433],{"class":3009,"line":3023},[3007,4418,3057],{"class":3029},[3007,4420,3097],{"class":3060},[3007,4422,3064],{"class":3029},[3007,4424,2965],{"class":3039},[3007,4426,3069],{"class":3029},[3007,4428,2965],{"class":3039},[3007,4430,2996],{"class":3029},[3007,4432,3076],{"class":3039},[3007,4434,3390],{"class":3029},[3007,4436,4437,4439,4441],{"class":3009,"line":3054},[3007,4438,3057],{"class":3029},[3007,4440,3183],{"class":3060},[3007,4442,3186],{"class":3029},[3007,4444,4445],{"class":3009,"line":3092},[3007,4446,4447],{"class":3013},"// ORDER BY Price ASC\n",[3007,4449,4450],{"class":3009,"line":3119},[3007,4451,3148],{"emptyLinePlaceholder":3147},[3007,4453,4454],{"class":3009,"line":3138},[3007,4455,4456],{"class":3013},"// Сортування за кількома полями\n",[3007,4458,4459,4461,4464,4466,4468,4470,4472],{"class":3009,"line":3144},[3007,4460,3243],{"class":3174},[3007,4462,4463],{"class":3039}," multiSort",[3007,4465,3043],{"class":3029},[3007,4467,3175],{"class":3174},[3007,4469,3223],{"class":3039},[3007,4471,2996],{"class":3029},[3007,4473,3051],{"class":3039},[3007,4475,4476,4478,4480,4482,4484,4486,4488,4490,4492],{"class":3009,"line":3151},[3007,4477,3057],{"class":3029},[3007,4479,3097],{"class":3060},[3007,4481,3064],{"class":3029},[3007,4483,2965],{"class":3039},[3007,4485,3069],{"class":3029},[3007,4487,2965],{"class":3039},[3007,4489,2996],{"class":3029},[3007,4491,3781],{"class":3039},[3007,4493,3390],{"class":3029},[3007,4495,4496,4498,4501,4503,4505,4507,4509,4511,4513],{"class":3009,"line":3157},[3007,4497,3057],{"class":3029},[3007,4499,4500],{"class":3060},"ThenByDescending",[3007,4502,3064],{"class":3029},[3007,4504,2965],{"class":3039},[3007,4506,3069],{"class":3029},[3007,4508,2965],{"class":3039},[3007,4510,2996],{"class":3029},[3007,4512,3076],{"class":3039},[3007,4514,3390],{"class":3029},[3007,4516,4517,4519,4522,4524,4526,4528,4530,4532,4534],{"class":3009,"line":3189},[3007,4518,3057],{"class":3029},[3007,4520,4521],{"class":3060},"ThenBy",[3007,4523,3064],{"class":3029},[3007,4525,2965],{"class":3039},[3007,4527,3069],{"class":3029},[3007,4529,2965],{"class":3039},[3007,4531,2996],{"class":3029},[3007,4533,3110],{"class":3039},[3007,4535,3390],{"class":3029},[3007,4537,4538,4540,4542],{"class":3009,"line":3472},[3007,4539,3057],{"class":3029},[3007,4541,3183],{"class":3060},[3007,4543,3186],{"class":3029},[3007,4545,4546],{"class":3009,"line":3478},[3007,4547,4548],{"class":3013},"// ORDER BY CategoryId ASC, Price DESC, Name ASC\n",[3007,4550,4551],{"class":3009,"line":3484},[3007,4552,3148],{"emptyLinePlaceholder":3147},[3007,4554,4555],{"class":3009,"line":3489},[3007,4556,4557],{"class":3013},"// Динамічне сортування (за параметром)\n",[3007,4559,4560,4563,4566,4568,4571,4574],{"class":3009,"line":3495},[3007,4561,4562],{"class":3174},"string",[3007,4564,4565],{"class":3039}," sortField",[3007,4567,3043],{"class":3029},[3007,4569,4570],{"class":4166},"\"price\"",[3007,4572,4573],{"class":3029},"; ",[3007,4575,4576],{"class":3013},"// з HTTP параметра\n",[3007,4578,4579,4582,4585,4587,4590],{"class":3009,"line":3501},[3007,4580,4581],{"class":3174},"bool",[3007,4583,4584],{"class":3039}," ascending",[3007,4586,3043],{"class":3029},[3007,4588,4589],{"class":3174},"true",[3007,4591,3603],{"class":3029},[3007,4593,4594],{"class":3009,"line":3507},[3007,4595,3148],{"emptyLinePlaceholder":3147},[3007,4597,4598,4600,4602,4604,4606,4608,4610,4612,4614,4616],{"class":3009,"line":4226},[3007,4599,2972],{"class":3026},[3007,4601,3030],{"class":3029},[3007,4603,3033],{"class":3026},[3007,4605,3036],{"class":3029},[3007,4607,3040],{"class":3039},[3007,4609,3043],{"class":3029},[3007,4611,3046],{"class":3039},[3007,4613,2996],{"class":3029},[3007,4615,3228],{"class":3039},[3007,4617,3603],{"class":3029},[3007,4619,4620,4622,4624,4627],{"class":3009,"line":4232},[3007,4621,3040],{"class":3039},[3007,4623,3043],{"class":3029},[3007,4625,4626],{"class":3039},"sortField",[3007,4628,4630],{"class":4629},"sCDza"," switch\n",[3007,4632,4633],{"class":3009,"line":4237},[3007,4634,4635],{"class":3029},"{\n",[3007,4637,4638,4641,4644,4647,4650,4652,4654,4656,4658,4660,4662,4664,4666,4668,4671,4673,4675,4678,4680,4682,4684,4686,4688,4690],{"class":3009,"line":4255},[3007,4639,4640],{"class":4166},"    \"name\"",[3007,4642,4643],{"class":3029},"  => ",[3007,4645,4646],{"class":3039},"ascending",[3007,4648,4649],{"class":3029}," ? ",[3007,4651,3040],{"class":3039},[3007,4653,2996],{"class":3029},[3007,4655,3097],{"class":3060},[3007,4657,3064],{"class":3029},[3007,4659,2965],{"class":3039},[3007,4661,3069],{"class":3029},[3007,4663,2965],{"class":3039},[3007,4665,2996],{"class":3029},[3007,4667,3110],{"class":3039},[3007,4669,4670],{"class":3029},")  : ",[3007,4672,3040],{"class":3039},[3007,4674,2996],{"class":3029},[3007,4676,4677],{"class":3060},"OrderByDescending",[3007,4679,3064],{"class":3029},[3007,4681,2965],{"class":3039},[3007,4683,3069],{"class":3029},[3007,4685,2965],{"class":3039},[3007,4687,2996],{"class":3029},[3007,4689,3110],{"class":3039},[3007,4691,4692],{"class":3029},"),\n",[3007,4694,4695,4698,4700,4702,4704,4706,4708,4710,4712,4714,4716,4718,4720,4722,4725,4727,4729,4731,4733,4735,4737,4739,4741,4743],{"class":3009,"line":4286},[3007,4696,4697],{"class":4166},"    \"price\"",[3007,4699,3069],{"class":3029},[3007,4701,4646],{"class":3039},[3007,4703,4649],{"class":3029},[3007,4705,3040],{"class":3039},[3007,4707,2996],{"class":3029},[3007,4709,3097],{"class":3060},[3007,4711,3064],{"class":3029},[3007,4713,2965],{"class":3039},[3007,4715,3069],{"class":3029},[3007,4717,2965],{"class":3039},[3007,4719,2996],{"class":3029},[3007,4721,3076],{"class":3039},[3007,4723,4724],{"class":3029},") : ",[3007,4726,3040],{"class":3039},[3007,4728,2996],{"class":3029},[3007,4730,4677],{"class":3060},[3007,4732,3064],{"class":3029},[3007,4734,2965],{"class":3039},[3007,4736,3069],{"class":3029},[3007,4738,2965],{"class":3039},[3007,4740,2996],{"class":3029},[3007,4742,3076],{"class":3039},[3007,4744,4692],{"class":3029},[3007,4746,4747,4750,4753,4755,4757,4759,4761,4763,4765,4767,4769,4771],{"class":3009,"line":4295},[3007,4748,4749],{"class":3174},"    _",[3007,4751,4752],{"class":3029},"       => ",[3007,4754,3040],{"class":3039},[3007,4756,2996],{"class":3029},[3007,4758,3097],{"class":3060},[3007,4760,3064],{"class":3029},[3007,4762,2965],{"class":3039},[3007,4764,3069],{"class":3029},[3007,4766,2965],{"class":3039},[3007,4768,2996],{"class":3029},[3007,4770,3416],{"class":3039},[3007,4772,3390],{"class":3029},[3007,4774,4775],{"class":3009,"line":4301},[3007,4776,4777],{"class":3029},"};\n",[3007,4779,4780,4782,4785,4787,4789,4791,4793,4795],{"class":3009,"line":4306},[3007,4781,3243],{"class":3174},[3007,4783,4784],{"class":3039}," sorted",[3007,4786,3043],{"class":3029},[3007,4788,3175],{"class":3174},[3007,4790,3178],{"class":3039},[3007,4792,2996],{"class":3029},[3007,4794,3183],{"class":3060},[3007,4796,3186],{"class":3029},[2969,4798,4800],{"id":4799},"skiptake-пагінація","Skip/Take: пагінація",[2998,4802,4804],{"className":3000,"code":4803,"language":3002,"meta":3003,"style":3003},"// Класична пагінація: сторінка N, розмір pageSize\nint page = 2;\nint pageSize = 20;\n\nvar paged = await context.Products\n    .Where(p => p.IsActive)\n    .OrderBy(p => p.CreatedAt)\n    .Skip((page - 1) * pageSize)\n    .Take(pageSize)\n    .ToListAsync();\n// SELECT ... FROM Products WHERE IsActive=1\n// ORDER BY CreatedAt SKIP 20 FETCH NEXT 20 ROWS ONLY (SQL Server)\n// або LIMIT 20 OFFSET 20 (PostgreSQL)\n\n// Загальна кількість для пагінації (окремий запит)\nvar total = await context.Products\n    .Where(p => p.IsActive)\n    .CountAsync();\n\nvar result = new PagedResult\u003CProduct>\n{\n    Items      = paged,\n    TotalCount = total,\n    Page       = page,\n    PageSize   = pageSize,\n    TotalPages = (int)Math.Ceiling((double)total / pageSize)\n};\n",[2989,4805,4806,4811,4826,4840,4844,4861,4881,4902,4928,4940,4948,4953,4958,4963,4967,4972,4989,5009,5018,5022,5042,5046,5060,5072,5084,5096,5133],{"__ignoreMap":3003},[3007,4807,4808],{"class":3009,"line":3010},[3007,4809,4810],{"class":3013},"// Класична пагінація: сторінка N, розмір pageSize\n",[3007,4812,4813,4816,4819,4821,4824],{"class":3009,"line":3017},[3007,4814,4815],{"class":3174},"int",[3007,4817,4818],{"class":3039}," page",[3007,4820,3043],{"class":3029},[3007,4822,4823],{"class":3082},"2",[3007,4825,3603],{"class":3029},[3007,4827,4828,4830,4833,4835,4838],{"class":3009,"line":3023},[3007,4829,4815],{"class":3174},[3007,4831,4832],{"class":3039}," pageSize",[3007,4834,3043],{"class":3029},[3007,4836,4837],{"class":3082},"20",[3007,4839,3603],{"class":3029},[3007,4841,4842],{"class":3009,"line":3054},[3007,4843,3148],{"emptyLinePlaceholder":3147},[3007,4845,4846,4848,4851,4853,4855,4857,4859],{"class":3009,"line":3092},[3007,4847,3243],{"class":3174},[3007,4849,4850],{"class":3039}," paged",[3007,4852,3043],{"class":3029},[3007,4854,3175],{"class":3174},[3007,4856,3223],{"class":3039},[3007,4858,2996],{"class":3029},[3007,4860,3051],{"class":3039},[3007,4862,4863,4865,4867,4869,4871,4873,4875,4877,4879],{"class":3009,"line":3119},[3007,4864,3057],{"class":3029},[3007,4866,3061],{"class":3060},[3007,4868,3064],{"class":3029},[3007,4870,2965],{"class":3039},[3007,4872,3069],{"class":3029},[3007,4874,2965],{"class":3039},[3007,4876,2996],{"class":3029},[3007,4878,3387],{"class":3039},[3007,4880,3390],{"class":3029},[3007,4882,4883,4885,4887,4889,4891,4893,4895,4897,4900],{"class":3009,"line":3138},[3007,4884,3057],{"class":3029},[3007,4886,3097],{"class":3060},[3007,4888,3064],{"class":3029},[3007,4890,2965],{"class":3039},[3007,4892,3069],{"class":3029},[3007,4894,2965],{"class":3039},[3007,4896,2996],{"class":3029},[3007,4898,4899],{"class":3039},"CreatedAt",[3007,4901,3390],{"class":3029},[3007,4903,4904,4906,4909,4912,4915,4918,4920,4923,4926],{"class":3009,"line":3144},[3007,4905,3057],{"class":3029},[3007,4907,4908],{"class":3060},"Skip",[3007,4910,4911],{"class":3029},"((",[3007,4913,4914],{"class":3039},"page",[3007,4916,4917],{"class":3029}," - ",[3007,4919,4071],{"class":3082},[3007,4921,4922],{"class":3029},") * ",[3007,4924,4925],{"class":3039},"pageSize",[3007,4927,3390],{"class":3029},[3007,4929,4930,4932,4934,4936,4938],{"class":3009,"line":3151},[3007,4931,3057],{"class":3029},[3007,4933,3124],{"class":3060},[3007,4935,3064],{"class":3029},[3007,4937,4925],{"class":3039},[3007,4939,3390],{"class":3029},[3007,4941,4942,4944,4946],{"class":3009,"line":3157},[3007,4943,3057],{"class":3029},[3007,4945,3183],{"class":3060},[3007,4947,3186],{"class":3029},[3007,4949,4950],{"class":3009,"line":3189},[3007,4951,4952],{"class":3013},"// SELECT ... FROM Products WHERE IsActive=1\n",[3007,4954,4955],{"class":3009,"line":3472},[3007,4956,4957],{"class":3013},"// ORDER BY CreatedAt SKIP 20 FETCH NEXT 20 ROWS ONLY (SQL Server)\n",[3007,4959,4960],{"class":3009,"line":3478},[3007,4961,4962],{"class":3013},"// або LIMIT 20 OFFSET 20 (PostgreSQL)\n",[3007,4964,4965],{"class":3009,"line":3484},[3007,4966,3148],{"emptyLinePlaceholder":3147},[3007,4968,4969],{"class":3009,"line":3489},[3007,4970,4971],{"class":3013},"// Загальна кількість для пагінації (окремий запит)\n",[3007,4973,4974,4976,4979,4981,4983,4985,4987],{"class":3009,"line":3495},[3007,4975,3243],{"class":3174},[3007,4977,4978],{"class":3039}," total",[3007,4980,3043],{"class":3029},[3007,4982,3175],{"class":3174},[3007,4984,3223],{"class":3039},[3007,4986,2996],{"class":3029},[3007,4988,3051],{"class":3039},[3007,4990,4991,4993,4995,4997,4999,5001,5003,5005,5007],{"class":3009,"line":3501},[3007,4992,3057],{"class":3029},[3007,4994,3061],{"class":3060},[3007,4996,3064],{"class":3029},[3007,4998,2965],{"class":3039},[3007,5000,3069],{"class":3029},[3007,5002,2965],{"class":3039},[3007,5004,2996],{"class":3029},[3007,5006,3387],{"class":3039},[3007,5008,3390],{"class":3029},[3007,5010,5011,5013,5016],{"class":3009,"line":3507},[3007,5012,3057],{"class":3029},[3007,5014,5015],{"class":3060},"CountAsync",[3007,5017,3186],{"class":3029},[3007,5019,5020],{"class":3009,"line":4226},[3007,5021,3148],{"emptyLinePlaceholder":3147},[3007,5023,5024,5026,5028,5030,5032,5035,5037,5039],{"class":3009,"line":4232},[3007,5025,3243],{"class":3174},[3007,5027,3877],{"class":3039},[3007,5029,3043],{"class":3029},[3007,5031,3406],{"class":3174},[3007,5033,5034],{"class":3026}," PagedResult",[3007,5036,3030],{"class":3029},[3007,5038,3033],{"class":3026},[3007,5040,5041],{"class":3029},">\n",[3007,5043,5044],{"class":3009,"line":4237},[3007,5045,4635],{"class":3029},[3007,5047,5048,5051,5054,5057],{"class":3009,"line":4255},[3007,5049,5050],{"class":3039},"    Items",[3007,5052,5053],{"class":3029},"      = ",[3007,5055,5056],{"class":3039},"paged",[3007,5058,5059],{"class":3029},",\n",[3007,5061,5062,5065,5067,5070],{"class":3009,"line":4286},[3007,5063,5064],{"class":3039},"    TotalCount",[3007,5066,3043],{"class":3029},[3007,5068,5069],{"class":3039},"total",[3007,5071,5059],{"class":3029},[3007,5073,5074,5077,5080,5082],{"class":3009,"line":4295},[3007,5075,5076],{"class":3039},"    Page",[3007,5078,5079],{"class":3029},"       = ",[3007,5081,4914],{"class":3039},[3007,5083,5059],{"class":3029},[3007,5085,5086,5089,5092,5094],{"class":3009,"line":4301},[3007,5087,5088],{"class":3039},"    PageSize",[3007,5090,5091],{"class":3029},"   = ",[3007,5093,4925],{"class":3039},[3007,5095,5059],{"class":3029},[3007,5097,5098,5101,5104,5106,5109,5112,5114,5117,5119,5122,5124,5126,5129,5131],{"class":3009,"line":4306},[3007,5099,5100],{"class":3039},"    TotalPages",[3007,5102,5103],{"class":3029}," = (",[3007,5105,4815],{"class":3174},[3007,5107,5108],{"class":3029},")",[3007,5110,5111],{"class":3039},"Math",[3007,5113,2996],{"class":3029},[3007,5115,5116],{"class":3060},"Ceiling",[3007,5118,4911],{"class":3029},[3007,5120,5121],{"class":3174},"double",[3007,5123,5108],{"class":3029},[3007,5125,5069],{"class":3039},[3007,5127,5128],{"class":3029}," / ",[3007,5130,4925],{"class":3039},[3007,5132,3390],{"class":3029},[3007,5134,5135],{"class":3009,"line":4312},[3007,5136,4777],{"class":3029},[5138,5139,5140,5162],"tip",{},[2965,5141,5142,5145,5146,5149,5150,5153,5154,5157,5158,5161],{},[2984,5143,5144],{},"Keyset Pagination (cursor-based)",": Для великих таблиць ",[2989,5147,5148],{},"SKIP"," + ",[2989,5151,5152],{},"OFFSET"," стає повільним (БД читає і пропускає ",[2989,5155,5156],{},"n"," рядків). Краща альтернатива — ",[2984,5159,5160],{},"keyset pagination",": фільтруємо за останнім значенням попередньої сторінки.",[2998,5163,5165],{"className":3000,"code":5164,"language":3002,"meta":3003,"style":3003},"// WHERE CreatedAt \u003C @lastSeenDate AND Id \u003C @lastSeenId\n// ORDER BY CreatedAt DESC, Id DESC\n// TAKE pageSize\n",[2989,5166,5167,5172,5177],{"__ignoreMap":3003},[3007,5168,5169],{"class":3009,"line":3010},[3007,5170,5171],{"class":3013},"// WHERE CreatedAt \u003C @lastSeenDate AND Id \u003C @lastSeenId\n",[3007,5173,5174],{"class":3009,"line":3017},[3007,5175,5176],{"class":3013},"// ORDER BY CreatedAt DESC, Id DESC\n",[3007,5178,5179],{"class":3009,"line":3023},[3007,5180,5181],{"class":3013},"// TAKE pageSize\n",[3528,5183],{},[2960,5185,5187],{"id":5186},"select-проєкція","Select: проєкція",[2965,5189,5190,5191,5194],{},"Проєкція — один з найважливіших інструментів оптимізації. Замість ",[2989,5192,5193],{},"SELECT *"," ми читаємо лише потрібні стовпці.",[2969,5196,5198],{"id":5197},"проєкція-у-dto","Проєкція у DTO",[2998,5200,5202],{"className":3000,"code":5201,"language":3002,"meta":3003,"style":3003},"// БЕЗ проєкції: завантажується весь Entity з усіма стовпцями\nvar products = await context.Products.ToListAsync();\n// SELECT Id, Name, Price, Sku, Description, CreatedAt, UpdatedAt, TenantId, IsDeleted, ...\n\n// З проєкцією: лише потрібні поля\nvar productDtos = await context.Products\n    .Where(p => p.IsActive)\n    .Select(p => new ProductListDto\n    {\n        Id    = p.Id,\n        Name  = p.Name,\n        Price = p.Price\n    })\n    .ToListAsync();\n// SELECT Id, Name, Price FROM Products WHERE IsActive = 1\n",[2989,5203,5204,5209,5231,5236,5240,5245,5262,5282,5299,5304,5320,5336,5350,5355,5363],{"__ignoreMap":3003},[3007,5205,5206],{"class":3009,"line":3010},[3007,5207,5208],{"class":3013},"// БЕЗ проєкції: завантажується весь Entity з усіма стовпцями\n",[3007,5210,5211,5213,5215,5217,5219,5221,5223,5225,5227,5229],{"class":3009,"line":3017},[3007,5212,3243],{"class":3174},[3007,5214,3983],{"class":3039},[3007,5216,3043],{"class":3029},[3007,5218,3175],{"class":3174},[3007,5220,3223],{"class":3039},[3007,5222,2996],{"class":3029},[3007,5224,3228],{"class":3039},[3007,5226,2996],{"class":3029},[3007,5228,3183],{"class":3060},[3007,5230,3186],{"class":3029},[3007,5232,5233],{"class":3009,"line":3023},[3007,5234,5235],{"class":3013},"// SELECT Id, Name, Price, Sku, Description, CreatedAt, UpdatedAt, TenantId, IsDeleted, ...\n",[3007,5237,5238],{"class":3009,"line":3054},[3007,5239,3148],{"emptyLinePlaceholder":3147},[3007,5241,5242],{"class":3009,"line":3092},[3007,5243,5244],{"class":3013},"// З проєкцією: лише потрібні поля\n",[3007,5246,5247,5249,5252,5254,5256,5258,5260],{"class":3009,"line":3119},[3007,5248,3243],{"class":3174},[3007,5250,5251],{"class":3039}," productDtos",[3007,5253,3043],{"class":3029},[3007,5255,3175],{"class":3174},[3007,5257,3223],{"class":3039},[3007,5259,2996],{"class":3029},[3007,5261,3051],{"class":3039},[3007,5263,5264,5266,5268,5270,5272,5274,5276,5278,5280],{"class":3009,"line":3138},[3007,5265,3057],{"class":3029},[3007,5267,3061],{"class":3060},[3007,5269,3064],{"class":3029},[3007,5271,2965],{"class":3039},[3007,5273,3069],{"class":3029},[3007,5275,2965],{"class":3039},[3007,5277,2996],{"class":3029},[3007,5279,3387],{"class":3039},[3007,5281,3390],{"class":3029},[3007,5283,5284,5286,5288,5290,5292,5294,5296],{"class":3009,"line":3144},[3007,5285,3057],{"class":3029},[3007,5287,3397],{"class":3060},[3007,5289,3064],{"class":3029},[3007,5291,2965],{"class":3039},[3007,5293,3069],{"class":3029},[3007,5295,3406],{"class":3174},[3007,5297,5298],{"class":3026}," ProductListDto\n",[3007,5300,5301],{"class":3009,"line":3151},[3007,5302,5303],{"class":3029},"    {\n",[3007,5305,5306,5309,5312,5314,5316,5318],{"class":3009,"line":3157},[3007,5307,5308],{"class":3039},"        Id",[3007,5310,5311],{"class":3029},"    = ",[3007,5313,2965],{"class":3039},[3007,5315,2996],{"class":3029},[3007,5317,3416],{"class":3039},[3007,5319,5059],{"class":3029},[3007,5321,5322,5325,5328,5330,5332,5334],{"class":3009,"line":3189},[3007,5323,5324],{"class":3039},"        Name",[3007,5326,5327],{"class":3029},"  = ",[3007,5329,2965],{"class":3039},[3007,5331,2996],{"class":3029},[3007,5333,3110],{"class":3039},[3007,5335,5059],{"class":3029},[3007,5337,5338,5341,5343,5345,5347],{"class":3009,"line":3472},[3007,5339,5340],{"class":3039},"        Price",[3007,5342,3043],{"class":3029},[3007,5344,2965],{"class":3039},[3007,5346,2996],{"class":3029},[3007,5348,5349],{"class":3039},"Price\n",[3007,5351,5352],{"class":3009,"line":3478},[3007,5353,5354],{"class":3029},"    })\n",[3007,5356,5357,5359,5361],{"class":3009,"line":3484},[3007,5358,3057],{"class":3029},[3007,5360,3183],{"class":3060},[3007,5362,3186],{"class":3029},[3007,5364,5365],{"class":3009,"line":3489},[3007,5366,5367],{"class":3013},"// SELECT Id, Name, Price FROM Products WHERE IsActive = 1\n",[2969,5369,5371],{"id":5370},"проєкція-з-навігаційними-властивостями","Проєкція з навігаційними властивостями",[2965,5373,5374,5375,5378],{},"По-справжньому потужна риса: проєкція автоматично додає потрібні JOIN без явного ",[2989,5376,5377],{},"Include",":",[2998,5380,5382],{"className":3000,"code":5381,"language":3002,"meta":3003,"style":3003},"var productsWithCategory = await context.Products\n    .Where(p => p.IsActive)\n    .Select(p => new\n    {\n        p.Id,\n        p.Name,\n        p.Price,\n        CategoryName = p.Category.Name, // ← JOIN до Categories\n        ReviewCount  = p.Reviews.Count(), // ← JOIN + COUNT\n        AverageRating = p.Reviews.Average(r => r.Rating) // ← AVG\n    })\n    .ToListAsync();\n// SQL: SELECT p.Id, p.Name, p.Price,\n//             c.Name AS CategoryName,\n//             (SELECT COUNT(*) FROM Reviews WHERE ProductId = p.Id) AS ReviewCount,\n//             (SELECT AVG(Rating) FROM Reviews WHERE ProductId = p.Id) AS AverageRating\n//      FROM Products p\n//      LEFT JOIN Categories c ON c.Id = p.CategoryId\n//      WHERE p.IsActive = 1\n",[2989,5383,5384,5401,5421,5436,5440,5451,5461,5471,5494,5519,5556,5560,5568,5573,5578,5583,5588,5593,5598],{"__ignoreMap":3003},[3007,5385,5386,5388,5391,5393,5395,5397,5399],{"class":3009,"line":3010},[3007,5387,3243],{"class":3174},[3007,5389,5390],{"class":3039}," productsWithCategory",[3007,5392,3043],{"class":3029},[3007,5394,3175],{"class":3174},[3007,5396,3223],{"class":3039},[3007,5398,2996],{"class":3029},[3007,5400,3051],{"class":3039},[3007,5402,5403,5405,5407,5409,5411,5413,5415,5417,5419],{"class":3009,"line":3017},[3007,5404,3057],{"class":3029},[3007,5406,3061],{"class":3060},[3007,5408,3064],{"class":3029},[3007,5410,2965],{"class":3039},[3007,5412,3069],{"class":3029},[3007,5414,2965],{"class":3039},[3007,5416,2996],{"class":3029},[3007,5418,3387],{"class":3039},[3007,5420,3390],{"class":3029},[3007,5422,5423,5425,5427,5429,5431,5433],{"class":3009,"line":3023},[3007,5424,3057],{"class":3029},[3007,5426,3397],{"class":3060},[3007,5428,3064],{"class":3029},[3007,5430,2965],{"class":3039},[3007,5432,3069],{"class":3029},[3007,5434,5435],{"class":3174},"new\n",[3007,5437,5438],{"class":3009,"line":3054},[3007,5439,5303],{"class":3029},[3007,5441,5442,5445,5447,5449],{"class":3009,"line":3092},[3007,5443,5444],{"class":3039},"        p",[3007,5446,2996],{"class":3029},[3007,5448,3416],{"class":3039},[3007,5450,5059],{"class":3029},[3007,5452,5453,5455,5457,5459],{"class":3009,"line":3119},[3007,5454,5444],{"class":3039},[3007,5456,2996],{"class":3029},[3007,5458,3110],{"class":3039},[3007,5460,5059],{"class":3029},[3007,5462,5463,5465,5467,5469],{"class":3009,"line":3138},[3007,5464,5444],{"class":3039},[3007,5466,2996],{"class":3029},[3007,5468,3076],{"class":3039},[3007,5470,5059],{"class":3029},[3007,5472,5473,5476,5478,5480,5482,5485,5487,5489,5491],{"class":3009,"line":3144},[3007,5474,5475],{"class":3039},"        CategoryName",[3007,5477,3043],{"class":3029},[3007,5479,2965],{"class":3039},[3007,5481,2996],{"class":3029},[3007,5483,5484],{"class":3039},"Category",[3007,5486,2996],{"class":3029},[3007,5488,3110],{"class":3039},[3007,5490,3307],{"class":3029},[3007,5492,5493],{"class":3013},"// ← JOIN до Categories\n",[3007,5495,5496,5499,5501,5503,5505,5508,5510,5513,5516],{"class":3009,"line":3151},[3007,5497,5498],{"class":3039},"        ReviewCount",[3007,5500,5327],{"class":3029},[3007,5502,2965],{"class":3039},[3007,5504,2996],{"class":3029},[3007,5506,5507],{"class":3039},"Reviews",[3007,5509,2996],{"class":3029},[3007,5511,5512],{"class":3060},"Count",[3007,5514,5515],{"class":3029},"(), ",[3007,5517,5518],{"class":3013},"// ← JOIN + COUNT\n",[3007,5520,5521,5524,5526,5528,5530,5532,5534,5537,5539,5542,5544,5546,5548,5551,5553],{"class":3009,"line":3157},[3007,5522,5523],{"class":3039},"        AverageRating",[3007,5525,3043],{"class":3029},[3007,5527,2965],{"class":3039},[3007,5529,2996],{"class":3029},[3007,5531,5507],{"class":3039},[3007,5533,2996],{"class":3029},[3007,5535,5536],{"class":3060},"Average",[3007,5538,3064],{"class":3029},[3007,5540,5541],{"class":3039},"r",[3007,5543,3069],{"class":3029},[3007,5545,5541],{"class":3039},[3007,5547,2996],{"class":3029},[3007,5549,5550],{"class":3039},"Rating",[3007,5552,3710],{"class":3029},[3007,5554,5555],{"class":3013},"// ← AVG\n",[3007,5557,5558],{"class":3009,"line":3189},[3007,5559,5354],{"class":3029},[3007,5561,5562,5564,5566],{"class":3009,"line":3472},[3007,5563,3057],{"class":3029},[3007,5565,3183],{"class":3060},[3007,5567,3186],{"class":3029},[3007,5569,5570],{"class":3009,"line":3478},[3007,5571,5572],{"class":3013},"// SQL: SELECT p.Id, p.Name, p.Price,\n",[3007,5574,5575],{"class":3009,"line":3484},[3007,5576,5577],{"class":3013},"//             c.Name AS CategoryName,\n",[3007,5579,5580],{"class":3009,"line":3489},[3007,5581,5582],{"class":3013},"//             (SELECT COUNT(*) FROM Reviews WHERE ProductId = p.Id) AS ReviewCount,\n",[3007,5584,5585],{"class":3009,"line":3495},[3007,5586,5587],{"class":3013},"//             (SELECT AVG(Rating) FROM Reviews WHERE ProductId = p.Id) AS AverageRating\n",[3007,5589,5590],{"class":3009,"line":3501},[3007,5591,5592],{"class":3013},"//      FROM Products p\n",[3007,5594,5595],{"class":3009,"line":3507},[3007,5596,5597],{"class":3013},"//      LEFT JOIN Categories c ON c.Id = p.CategoryId\n",[3007,5599,5600],{"class":3009,"line":4226},[3007,5601,5602],{"class":3013},"//      WHERE p.IsActive = 1\n",[2965,5604,5605,5606,5609],{},"Це ефективніше за ",[2989,5607,5608],{},"Include(p => p.Reviews)"," коли потрібна лише агрегація — не завантажуємо всі рядки Reviews у пам'ять.",[2969,5611,5613],{"id":5612},"проєкція-у-вкладені-dto","Проєкція у вкладені DTO",[2998,5615,5617],{"className":3000,"code":5616,"language":3002,"meta":3003,"style":3003},"var orderDtos = await context.Orders\n    .Where(o => o.CustomerId == customerId)\n    .Select(o => new OrderDto\n    {\n        Id          = o.Id,\n        OrderNumber = o.OrderNumber,\n        PlacedAt    = o.PlacedAt,\n        Status      = o.Status.ToString(),\n        CustomerName = o.Customer.FullName, // JOIN\n        // Вкладена колекція — теж транслюється!\n        LineItems   = o.LineItems.Select(li => new OrderLineItemDto\n        {\n            ProductName = li.Product.Name, // вкладений JOIN\n            Quantity    = li.Quantity,\n            UnitPrice   = li.UnitPrice,\n            SubTotal    = li.Quantity * li.UnitPrice\n        }).ToList()\n    })\n    .OrderByDescending(o => o.PlacedAt)\n    .ToListAsync();\n",[2989,5618,5619,5637,5664,5681,5685,5700,5716,5732,5754,5778,5783,5813,5818,5840,5856,5872,5895,5905,5909,5929],{"__ignoreMap":3003},[3007,5620,5621,5623,5626,5628,5630,5632,5634],{"class":3009,"line":3010},[3007,5622,3243],{"class":3174},[3007,5624,5625],{"class":3039}," orderDtos",[3007,5627,3043],{"class":3029},[3007,5629,3175],{"class":3174},[3007,5631,3223],{"class":3039},[3007,5633,2996],{"class":3029},[3007,5635,5636],{"class":3039},"Orders\n",[3007,5638,5639,5641,5643,5645,5648,5650,5652,5654,5657,5659,5662],{"class":3009,"line":3017},[3007,5640,3057],{"class":3029},[3007,5642,3061],{"class":3060},[3007,5644,3064],{"class":3029},[3007,5646,5647],{"class":3039},"o",[3007,5649,3069],{"class":3029},[3007,5651,5647],{"class":3039},[3007,5653,2996],{"class":3029},[3007,5655,5656],{"class":3039},"CustomerId",[3007,5658,3784],{"class":3029},[3007,5660,5661],{"class":3039},"customerId",[3007,5663,3390],{"class":3029},[3007,5665,5666,5668,5670,5672,5674,5676,5678],{"class":3009,"line":3023},[3007,5667,3057],{"class":3029},[3007,5669,3397],{"class":3060},[3007,5671,3064],{"class":3029},[3007,5673,5647],{"class":3039},[3007,5675,3069],{"class":3029},[3007,5677,3406],{"class":3174},[3007,5679,5680],{"class":3026}," OrderDto\n",[3007,5682,5683],{"class":3009,"line":3054},[3007,5684,5303],{"class":3029},[3007,5686,5687,5689,5692,5694,5696,5698],{"class":3009,"line":3092},[3007,5688,5308],{"class":3039},[3007,5690,5691],{"class":3029},"          = ",[3007,5693,5647],{"class":3039},[3007,5695,2996],{"class":3029},[3007,5697,3416],{"class":3039},[3007,5699,5059],{"class":3029},[3007,5701,5702,5705,5707,5709,5711,5714],{"class":3009,"line":3119},[3007,5703,5704],{"class":3039},"        OrderNumber",[3007,5706,3043],{"class":3029},[3007,5708,5647],{"class":3039},[3007,5710,2996],{"class":3029},[3007,5712,5713],{"class":3039},"OrderNumber",[3007,5715,5059],{"class":3029},[3007,5717,5718,5721,5723,5725,5727,5730],{"class":3009,"line":3138},[3007,5719,5720],{"class":3039},"        PlacedAt",[3007,5722,5311],{"class":3029},[3007,5724,5647],{"class":3039},[3007,5726,2996],{"class":3029},[3007,5728,5729],{"class":3039},"PlacedAt",[3007,5731,5059],{"class":3029},[3007,5733,5734,5737,5739,5741,5743,5746,5748,5751],{"class":3009,"line":3144},[3007,5735,5736],{"class":3039},"        Status",[3007,5738,5053],{"class":3029},[3007,5740,5647],{"class":3039},[3007,5742,2996],{"class":3029},[3007,5744,5745],{"class":3039},"Status",[3007,5747,2996],{"class":3029},[3007,5749,5750],{"class":3060},"ToString",[3007,5752,5753],{"class":3029},"(),\n",[3007,5755,5756,5759,5761,5763,5765,5768,5770,5773,5775],{"class":3009,"line":3151},[3007,5757,5758],{"class":3039},"        CustomerName",[3007,5760,3043],{"class":3029},[3007,5762,5647],{"class":3039},[3007,5764,2996],{"class":3029},[3007,5766,5767],{"class":3039},"Customer",[3007,5769,2996],{"class":3029},[3007,5771,5772],{"class":3039},"FullName",[3007,5774,3307],{"class":3029},[3007,5776,5777],{"class":3013},"// JOIN\n",[3007,5779,5780],{"class":3009,"line":3157},[3007,5781,5782],{"class":3013},"        // Вкладена колекція — теж транслюється!\n",[3007,5784,5785,5788,5790,5792,5794,5797,5799,5801,5803,5806,5808,5810],{"class":3009,"line":3189},[3007,5786,5787],{"class":3039},"        LineItems",[3007,5789,5091],{"class":3029},[3007,5791,5647],{"class":3039},[3007,5793,2996],{"class":3029},[3007,5795,5796],{"class":3039},"LineItems",[3007,5798,2996],{"class":3029},[3007,5800,3397],{"class":3060},[3007,5802,3064],{"class":3029},[3007,5804,5805],{"class":3039},"li",[3007,5807,3069],{"class":3029},[3007,5809,3406],{"class":3174},[3007,5811,5812],{"class":3026}," OrderLineItemDto\n",[3007,5814,5815],{"class":3009,"line":3472},[3007,5816,5817],{"class":3029},"        {\n",[3007,5819,5820,5823,5825,5827,5829,5831,5833,5835,5837],{"class":3009,"line":3478},[3007,5821,5822],{"class":3039},"            ProductName",[3007,5824,3043],{"class":3029},[3007,5826,5805],{"class":3039},[3007,5828,2996],{"class":3029},[3007,5830,3033],{"class":3039},[3007,5832,2996],{"class":3029},[3007,5834,3110],{"class":3039},[3007,5836,3307],{"class":3029},[3007,5838,5839],{"class":3013},"// вкладений JOIN\n",[3007,5841,5842,5845,5847,5849,5851,5854],{"class":3009,"line":3484},[3007,5843,5844],{"class":3039},"            Quantity",[3007,5846,5311],{"class":3029},[3007,5848,5805],{"class":3039},[3007,5850,2996],{"class":3029},[3007,5852,5853],{"class":3039},"Quantity",[3007,5855,5059],{"class":3029},[3007,5857,5858,5861,5863,5865,5867,5870],{"class":3009,"line":3489},[3007,5859,5860],{"class":3039},"            UnitPrice",[3007,5862,5091],{"class":3029},[3007,5864,5805],{"class":3039},[3007,5866,2996],{"class":3029},[3007,5868,5869],{"class":3039},"UnitPrice",[3007,5871,5059],{"class":3029},[3007,5873,5874,5877,5879,5881,5883,5885,5888,5890,5892],{"class":3009,"line":3495},[3007,5875,5876],{"class":3039},"            SubTotal",[3007,5878,5311],{"class":3029},[3007,5880,5805],{"class":3039},[3007,5882,2996],{"class":3029},[3007,5884,5853],{"class":3039},[3007,5886,5887],{"class":3029}," * ",[3007,5889,5805],{"class":3039},[3007,5891,2996],{"class":3029},[3007,5893,5894],{"class":3039},"UnitPrice\n",[3007,5896,5897,5900,5902],{"class":3009,"line":3501},[3007,5898,5899],{"class":3029},"        }).",[3007,5901,3947],{"class":3060},[3007,5903,5904],{"class":3029},"()\n",[3007,5906,5907],{"class":3009,"line":3507},[3007,5908,5354],{"class":3029},[3007,5910,5911,5913,5915,5917,5919,5921,5923,5925,5927],{"class":3009,"line":4226},[3007,5912,3057],{"class":3029},[3007,5914,4677],{"class":3060},[3007,5916,3064],{"class":3029},[3007,5918,5647],{"class":3039},[3007,5920,3069],{"class":3029},[3007,5922,5647],{"class":3039},[3007,5924,2996],{"class":3029},[3007,5926,5729],{"class":3039},[3007,5928,3390],{"class":3029},[3007,5930,5931,5933,5935],{"class":3009,"line":4232},[3007,5932,3057],{"class":3029},[3007,5934,3183],{"class":3060},[3007,5936,3186],{"class":3029},[2965,5938,5939,5940,5942],{},"EF Core транслює вкладений ",[2989,5941,3397],{}," у підзапит або JOIN залежно від контексту.",[3528,5944],{},[2960,5946,5948],{"id":5947},"groupby-агрегація","GroupBy: агрегація",[2965,5950,5951,5953],{},[2989,5952,3522],{}," — одна з найскладніших операцій для правильного використання в EF Core. Важливо знати, що транслюється, а що ні.",[2969,5955,5957],{"id":5956},"базовий-groupby","Базовий GroupBy",[2998,5959,5961],{"className":3000,"code":5960,"language":3002,"meta":3003,"style":3003},"// Кількість продуктів за категорією\nvar countsByCategory = await context.Products\n    .GroupBy(p => p.CategoryId)\n    .Select(g => new\n    {\n        CategoryId = g.Key,\n        Count      = g.Count(),\n        AvgPrice   = g.Average(p => p.Price),\n        MaxPrice   = g.Max(p => p.Price),\n        MinPrice   = g.Min(p => p.Price)\n    })\n    .ToListAsync();\n// SQL: SELECT CategoryId, COUNT(*), AVG(Price), MAX(Price), MIN(Price)\n//      FROM Products\n//      GROUP BY CategoryId\n\n// З Join для отримання назви категорії\nvar withNames = await context.Products\n    .GroupBy(p => new { p.CategoryId, CategoryName = p.Category.Name })\n    .Select(g => new\n    {\n        g.Key.CategoryId,\n        g.Key.CategoryName,\n        Count    = g.Count(),\n        AvgPrice = g.Average(p => p.Price)\n    })\n    .OrderByDescending(x => x.Count)\n    .ToListAsync();\n// SQL: SELECT p.CategoryId, c.Name, COUNT(*), AVG(p.Price)\n//      FROM Products p\n//      JOIN Categories c ON c.Id = p.CategoryId\n//      GROUP BY p.CategoryId, c.Name\n//      ORDER BY COUNT(*) DESC\n",[2989,5962,5963,5968,5985,6005,6020,6024,6040,6055,6082,6110,6138,6142,6150,6155,6160,6165,6169,6174,6191,6233,6247,6251,6266,6280,6294,6320,6324,6345,6353,6358,6362,6368,6374],{"__ignoreMap":3003},[3007,5964,5965],{"class":3009,"line":3010},[3007,5966,5967],{"class":3013},"// Кількість продуктів за категорією\n",[3007,5969,5970,5972,5975,5977,5979,5981,5983],{"class":3009,"line":3017},[3007,5971,3243],{"class":3174},[3007,5973,5974],{"class":3039}," countsByCategory",[3007,5976,3043],{"class":3029},[3007,5978,3175],{"class":3174},[3007,5980,3223],{"class":3039},[3007,5982,2996],{"class":3029},[3007,5984,3051],{"class":3039},[3007,5986,5987,5989,5991,5993,5995,5997,5999,6001,6003],{"class":3009,"line":3023},[3007,5988,3057],{"class":3029},[3007,5990,3522],{"class":3060},[3007,5992,3064],{"class":3029},[3007,5994,2965],{"class":3039},[3007,5996,3069],{"class":3029},[3007,5998,2965],{"class":3039},[3007,6000,2996],{"class":3029},[3007,6002,3781],{"class":3039},[3007,6004,3390],{"class":3029},[3007,6006,6007,6009,6011,6013,6016,6018],{"class":3009,"line":3054},[3007,6008,3057],{"class":3029},[3007,6010,3397],{"class":3060},[3007,6012,3064],{"class":3029},[3007,6014,6015],{"class":3039},"g",[3007,6017,3069],{"class":3029},[3007,6019,5435],{"class":3174},[3007,6021,6022],{"class":3009,"line":3092},[3007,6023,5303],{"class":3029},[3007,6025,6026,6029,6031,6033,6035,6038],{"class":3009,"line":3119},[3007,6027,6028],{"class":3039},"        CategoryId",[3007,6030,3043],{"class":3029},[3007,6032,6015],{"class":3039},[3007,6034,2996],{"class":3029},[3007,6036,6037],{"class":3039},"Key",[3007,6039,5059],{"class":3029},[3007,6041,6042,6045,6047,6049,6051,6053],{"class":3009,"line":3138},[3007,6043,6044],{"class":3039},"        Count",[3007,6046,5053],{"class":3029},[3007,6048,6015],{"class":3039},[3007,6050,2996],{"class":3029},[3007,6052,5512],{"class":3060},[3007,6054,5753],{"class":3029},[3007,6056,6057,6060,6062,6064,6066,6068,6070,6072,6074,6076,6078,6080],{"class":3009,"line":3144},[3007,6058,6059],{"class":3039},"        AvgPrice",[3007,6061,5091],{"class":3029},[3007,6063,6015],{"class":3039},[3007,6065,2996],{"class":3029},[3007,6067,5536],{"class":3060},[3007,6069,3064],{"class":3029},[3007,6071,2965],{"class":3039},[3007,6073,3069],{"class":3029},[3007,6075,2965],{"class":3039},[3007,6077,2996],{"class":3029},[3007,6079,3076],{"class":3039},[3007,6081,4692],{"class":3029},[3007,6083,6084,6087,6089,6091,6093,6096,6098,6100,6102,6104,6106,6108],{"class":3009,"line":3151},[3007,6085,6086],{"class":3039},"        MaxPrice",[3007,6088,5091],{"class":3029},[3007,6090,6015],{"class":3039},[3007,6092,2996],{"class":3029},[3007,6094,6095],{"class":3060},"Max",[3007,6097,3064],{"class":3029},[3007,6099,2965],{"class":3039},[3007,6101,3069],{"class":3029},[3007,6103,2965],{"class":3039},[3007,6105,2996],{"class":3029},[3007,6107,3076],{"class":3039},[3007,6109,4692],{"class":3029},[3007,6111,6112,6115,6117,6119,6121,6124,6126,6128,6130,6132,6134,6136],{"class":3009,"line":3157},[3007,6113,6114],{"class":3039},"        MinPrice",[3007,6116,5091],{"class":3029},[3007,6118,6015],{"class":3039},[3007,6120,2996],{"class":3029},[3007,6122,6123],{"class":3060},"Min",[3007,6125,3064],{"class":3029},[3007,6127,2965],{"class":3039},[3007,6129,3069],{"class":3029},[3007,6131,2965],{"class":3039},[3007,6133,2996],{"class":3029},[3007,6135,3076],{"class":3039},[3007,6137,3390],{"class":3029},[3007,6139,6140],{"class":3009,"line":3189},[3007,6141,5354],{"class":3029},[3007,6143,6144,6146,6148],{"class":3009,"line":3472},[3007,6145,3057],{"class":3029},[3007,6147,3183],{"class":3060},[3007,6149,3186],{"class":3029},[3007,6151,6152],{"class":3009,"line":3478},[3007,6153,6154],{"class":3013},"// SQL: SELECT CategoryId, COUNT(*), AVG(Price), MAX(Price), MIN(Price)\n",[3007,6156,6157],{"class":3009,"line":3484},[3007,6158,6159],{"class":3013},"//      FROM Products\n",[3007,6161,6162],{"class":3009,"line":3489},[3007,6163,6164],{"class":3013},"//      GROUP BY CategoryId\n",[3007,6166,6167],{"class":3009,"line":3495},[3007,6168,3148],{"emptyLinePlaceholder":3147},[3007,6170,6171],{"class":3009,"line":3501},[3007,6172,6173],{"class":3013},"// З Join для отримання назви категорії\n",[3007,6175,6176,6178,6181,6183,6185,6187,6189],{"class":3009,"line":3507},[3007,6177,3243],{"class":3174},[3007,6179,6180],{"class":3039}," withNames",[3007,6182,3043],{"class":3029},[3007,6184,3175],{"class":3174},[3007,6186,3223],{"class":3039},[3007,6188,2996],{"class":3029},[3007,6190,3051],{"class":3039},[3007,6192,6193,6195,6197,6199,6201,6203,6205,6207,6209,6211,6213,6215,6218,6220,6222,6224,6226,6228,6230],{"class":3009,"line":4226},[3007,6194,3057],{"class":3029},[3007,6196,3522],{"class":3060},[3007,6198,3064],{"class":3029},[3007,6200,2965],{"class":3039},[3007,6202,3069],{"class":3029},[3007,6204,3406],{"class":3174},[3007,6206,3409],{"class":3029},[3007,6208,2965],{"class":3039},[3007,6210,2996],{"class":3029},[3007,6212,3781],{"class":3039},[3007,6214,3307],{"class":3029},[3007,6216,6217],{"class":3039},"CategoryName",[3007,6219,3043],{"class":3029},[3007,6221,2965],{"class":3039},[3007,6223,2996],{"class":3029},[3007,6225,5484],{"class":3039},[3007,6227,2996],{"class":3029},[3007,6229,3110],{"class":3039},[3007,6231,6232],{"class":3029}," })\n",[3007,6234,6235,6237,6239,6241,6243,6245],{"class":3009,"line":4232},[3007,6236,3057],{"class":3029},[3007,6238,3397],{"class":3060},[3007,6240,3064],{"class":3029},[3007,6242,6015],{"class":3039},[3007,6244,3069],{"class":3029},[3007,6246,5435],{"class":3174},[3007,6248,6249],{"class":3009,"line":4237},[3007,6250,5303],{"class":3029},[3007,6252,6253,6256,6258,6260,6262,6264],{"class":3009,"line":4255},[3007,6254,6255],{"class":3039},"        g",[3007,6257,2996],{"class":3029},[3007,6259,6037],{"class":3039},[3007,6261,2996],{"class":3029},[3007,6263,3781],{"class":3039},[3007,6265,5059],{"class":3029},[3007,6267,6268,6270,6272,6274,6276,6278],{"class":3009,"line":4286},[3007,6269,6255],{"class":3039},[3007,6271,2996],{"class":3029},[3007,6273,6037],{"class":3039},[3007,6275,2996],{"class":3029},[3007,6277,6217],{"class":3039},[3007,6279,5059],{"class":3029},[3007,6281,6282,6284,6286,6288,6290,6292],{"class":3009,"line":4295},[3007,6283,6044],{"class":3039},[3007,6285,5311],{"class":3029},[3007,6287,6015],{"class":3039},[3007,6289,2996],{"class":3029},[3007,6291,5512],{"class":3060},[3007,6293,5753],{"class":3029},[3007,6295,6296,6298,6300,6302,6304,6306,6308,6310,6312,6314,6316,6318],{"class":3009,"line":4301},[3007,6297,6059],{"class":3039},[3007,6299,3043],{"class":3029},[3007,6301,6015],{"class":3039},[3007,6303,2996],{"class":3029},[3007,6305,5536],{"class":3060},[3007,6307,3064],{"class":3029},[3007,6309,2965],{"class":3039},[3007,6311,3069],{"class":3029},[3007,6313,2965],{"class":3039},[3007,6315,2996],{"class":3029},[3007,6317,3076],{"class":3039},[3007,6319,3390],{"class":3029},[3007,6321,6322],{"class":3009,"line":4306},[3007,6323,5354],{"class":3029},[3007,6325,6326,6328,6330,6332,6335,6337,6339,6341,6343],{"class":3009,"line":4312},[3007,6327,3057],{"class":3029},[3007,6329,4677],{"class":3060},[3007,6331,3064],{"class":3029},[3007,6333,6334],{"class":3039},"x",[3007,6336,3069],{"class":3029},[3007,6338,6334],{"class":3039},[3007,6340,2996],{"class":3029},[3007,6342,5512],{"class":3039},[3007,6344,3390],{"class":3029},[3007,6346,6347,6349,6351],{"class":3009,"line":4330},[3007,6348,3057],{"class":3029},[3007,6350,3183],{"class":3060},[3007,6352,3186],{"class":3029},[3007,6354,6355],{"class":3009,"line":4371},[3007,6356,6357],{"class":3013},"// SQL: SELECT p.CategoryId, c.Name, COUNT(*), AVG(p.Price)\n",[3007,6359,6360],{"class":3009,"line":4380},[3007,6361,5592],{"class":3013},[3007,6363,6365],{"class":3009,"line":6364},31,[3007,6366,6367],{"class":3013},"//      JOIN Categories c ON c.Id = p.CategoryId\n",[3007,6369,6371],{"class":3009,"line":6370},32,[3007,6372,6373],{"class":3013},"//      GROUP BY p.CategoryId, c.Name\n",[3007,6375,6377],{"class":3009,"line":6376},33,[3007,6378,6379],{"class":3013},"//      ORDER BY COUNT(*) DESC\n",[2969,6381,6383],{"id":6382},"having-через-where-після-groupby","HAVING через Where після GroupBy",[2998,6385,6387],{"className":3000,"code":6386,"language":3002,"meta":3003,"style":3003},"// Категорії з більш ніж 10 продуктами\nvar popularCategories = await context.Products\n    .GroupBy(p => p.CategoryId)\n    .Where(g => g.Count() > 10) // ← транслюється у HAVING\n    .Select(g => new { CategoryId = g.Key, ProductCount = g.Count() })\n    .ToListAsync();\n// SQL: SELECT CategoryId, COUNT(*)\n//      FROM Products\n//      GROUP BY CategoryId\n//      HAVING COUNT(*) > 10\n",[2989,6388,6389,6394,6411,6431,6459,6501,6509,6514,6518,6522],{"__ignoreMap":3003},[3007,6390,6391],{"class":3009,"line":3010},[3007,6392,6393],{"class":3013},"// Категорії з більш ніж 10 продуктами\n",[3007,6395,6396,6398,6401,6403,6405,6407,6409],{"class":3009,"line":3017},[3007,6397,3243],{"class":3174},[3007,6399,6400],{"class":3039}," popularCategories",[3007,6402,3043],{"class":3029},[3007,6404,3175],{"class":3174},[3007,6406,3223],{"class":3039},[3007,6408,2996],{"class":3029},[3007,6410,3051],{"class":3039},[3007,6412,6413,6415,6417,6419,6421,6423,6425,6427,6429],{"class":3009,"line":3023},[3007,6414,3057],{"class":3029},[3007,6416,3522],{"class":3060},[3007,6418,3064],{"class":3029},[3007,6420,2965],{"class":3039},[3007,6422,3069],{"class":3029},[3007,6424,2965],{"class":3039},[3007,6426,2996],{"class":3029},[3007,6428,3781],{"class":3039},[3007,6430,3390],{"class":3029},[3007,6432,6433,6435,6437,6439,6441,6443,6445,6447,6449,6452,6454,6456],{"class":3009,"line":3054},[3007,6434,3057],{"class":3029},[3007,6436,3061],{"class":3060},[3007,6438,3064],{"class":3029},[3007,6440,6015],{"class":3039},[3007,6442,3069],{"class":3029},[3007,6444,6015],{"class":3039},[3007,6446,2996],{"class":3029},[3007,6448,5512],{"class":3060},[3007,6450,6451],{"class":3029},"() > ",[3007,6453,3129],{"class":3082},[3007,6455,3710],{"class":3029},[3007,6457,6458],{"class":3013},"// ← транслюється у HAVING\n",[3007,6460,6461,6463,6465,6467,6469,6471,6473,6475,6477,6479,6481,6483,6485,6487,6490,6492,6494,6496,6498],{"class":3009,"line":3092},[3007,6462,3057],{"class":3029},[3007,6464,3397],{"class":3060},[3007,6466,3064],{"class":3029},[3007,6468,6015],{"class":3039},[3007,6470,3069],{"class":3029},[3007,6472,3406],{"class":3174},[3007,6474,3409],{"class":3029},[3007,6476,3781],{"class":3039},[3007,6478,3043],{"class":3029},[3007,6480,6015],{"class":3039},[3007,6482,2996],{"class":3029},[3007,6484,6037],{"class":3039},[3007,6486,3307],{"class":3029},[3007,6488,6489],{"class":3039},"ProductCount",[3007,6491,3043],{"class":3029},[3007,6493,6015],{"class":3039},[3007,6495,2996],{"class":3029},[3007,6497,5512],{"class":3060},[3007,6499,6500],{"class":3029},"() })\n",[3007,6502,6503,6505,6507],{"class":3009,"line":3119},[3007,6504,3057],{"class":3029},[3007,6506,3183],{"class":3060},[3007,6508,3186],{"class":3029},[3007,6510,6511],{"class":3009,"line":3138},[3007,6512,6513],{"class":3013},"// SQL: SELECT CategoryId, COUNT(*)\n",[3007,6515,6516],{"class":3009,"line":3144},[3007,6517,6159],{"class":3013},[3007,6519,6520],{"class":3009,"line":3151},[3007,6521,6164],{"class":3013},[3007,6523,6524],{"class":3009,"line":3157},[3007,6525,6526],{"class":3013},"//      HAVING COUNT(*) > 10\n",[2969,6528,6530],{"id":6529},"groupby-з-кількома-ключами","GroupBy з кількома ключами",[2998,6532,6534],{"className":3000,"code":6533,"language":3002,"meta":3003,"style":3003},"// Продажі по місяцях і статусах\nvar salesByMonthAndStatus = await context.Orders\n    .Where(o => o.PlacedAt.Year == 2024)\n    .GroupBy(o => new\n    {\n        Month  = o.PlacedAt.Month,\n        Status = o.Status\n    })\n    .Select(g => new\n    {\n        g.Key.Month,\n        g.Key.Status,\n        Count        = g.Count(),\n        TotalRevenue = g.Sum(o => o.TotalAmount)\n    })\n    .OrderBy(x => x.Month)\n    .ThenBy(x => x.Status)\n    .ToListAsync();\n// SQL: SELECT MONTH(PlacedAt), Status, COUNT(*), SUM(TotalAmount)\n//      FROM Orders WHERE YEAR(PlacedAt) = 2024\n//      GROUP BY MONTH(PlacedAt), Status\n//      ORDER BY MONTH(PlacedAt), Status\n",[2989,6535,6536,6541,6558,6588,6602,6606,6626,6639,6643,6657,6661,6675,6689,6704,6733,6737,6757,6777,6785,6790,6795,6800],{"__ignoreMap":3003},[3007,6537,6538],{"class":3009,"line":3010},[3007,6539,6540],{"class":3013},"// Продажі по місяцях і статусах\n",[3007,6542,6543,6545,6548,6550,6552,6554,6556],{"class":3009,"line":3017},[3007,6544,3243],{"class":3174},[3007,6546,6547],{"class":3039}," salesByMonthAndStatus",[3007,6549,3043],{"class":3029},[3007,6551,3175],{"class":3174},[3007,6553,3223],{"class":3039},[3007,6555,2996],{"class":3029},[3007,6557,5636],{"class":3039},[3007,6559,6560,6562,6564,6566,6568,6570,6572,6574,6576,6578,6581,6583,6586],{"class":3009,"line":3023},[3007,6561,3057],{"class":3029},[3007,6563,3061],{"class":3060},[3007,6565,3064],{"class":3029},[3007,6567,5647],{"class":3039},[3007,6569,3069],{"class":3029},[3007,6571,5647],{"class":3039},[3007,6573,2996],{"class":3029},[3007,6575,5729],{"class":3039},[3007,6577,2996],{"class":3029},[3007,6579,6580],{"class":3039},"Year",[3007,6582,3784],{"class":3029},[3007,6584,6585],{"class":3082},"2024",[3007,6587,3390],{"class":3029},[3007,6589,6590,6592,6594,6596,6598,6600],{"class":3009,"line":3054},[3007,6591,3057],{"class":3029},[3007,6593,3522],{"class":3060},[3007,6595,3064],{"class":3029},[3007,6597,5647],{"class":3039},[3007,6599,3069],{"class":3029},[3007,6601,5435],{"class":3174},[3007,6603,6604],{"class":3009,"line":3092},[3007,6605,5303],{"class":3029},[3007,6607,6608,6611,6613,6615,6617,6619,6621,6624],{"class":3009,"line":3119},[3007,6609,6610],{"class":3039},"        Month",[3007,6612,5327],{"class":3029},[3007,6614,5647],{"class":3039},[3007,6616,2996],{"class":3029},[3007,6618,5729],{"class":3039},[3007,6620,2996],{"class":3029},[3007,6622,6623],{"class":3039},"Month",[3007,6625,5059],{"class":3029},[3007,6627,6628,6630,6632,6634,6636],{"class":3009,"line":3138},[3007,6629,5736],{"class":3039},[3007,6631,3043],{"class":3029},[3007,6633,5647],{"class":3039},[3007,6635,2996],{"class":3029},[3007,6637,6638],{"class":3039},"Status\n",[3007,6640,6641],{"class":3009,"line":3144},[3007,6642,5354],{"class":3029},[3007,6644,6645,6647,6649,6651,6653,6655],{"class":3009,"line":3151},[3007,6646,3057],{"class":3029},[3007,6648,3397],{"class":3060},[3007,6650,3064],{"class":3029},[3007,6652,6015],{"class":3039},[3007,6654,3069],{"class":3029},[3007,6656,5435],{"class":3174},[3007,6658,6659],{"class":3009,"line":3157},[3007,6660,5303],{"class":3029},[3007,6662,6663,6665,6667,6669,6671,6673],{"class":3009,"line":3189},[3007,6664,6255],{"class":3039},[3007,6666,2996],{"class":3029},[3007,6668,6037],{"class":3039},[3007,6670,2996],{"class":3029},[3007,6672,6623],{"class":3039},[3007,6674,5059],{"class":3029},[3007,6676,6677,6679,6681,6683,6685,6687],{"class":3009,"line":3472},[3007,6678,6255],{"class":3039},[3007,6680,2996],{"class":3029},[3007,6682,6037],{"class":3039},[3007,6684,2996],{"class":3029},[3007,6686,5745],{"class":3039},[3007,6688,5059],{"class":3029},[3007,6690,6691,6693,6696,6698,6700,6702],{"class":3009,"line":3478},[3007,6692,6044],{"class":3039},[3007,6694,6695],{"class":3029},"        = ",[3007,6697,6015],{"class":3039},[3007,6699,2996],{"class":3029},[3007,6701,5512],{"class":3060},[3007,6703,5753],{"class":3029},[3007,6705,6706,6709,6711,6713,6715,6718,6720,6722,6724,6726,6728,6731],{"class":3009,"line":3484},[3007,6707,6708],{"class":3039},"        TotalRevenue",[3007,6710,3043],{"class":3029},[3007,6712,6015],{"class":3039},[3007,6714,2996],{"class":3029},[3007,6716,6717],{"class":3060},"Sum",[3007,6719,3064],{"class":3029},[3007,6721,5647],{"class":3039},[3007,6723,3069],{"class":3029},[3007,6725,5647],{"class":3039},[3007,6727,2996],{"class":3029},[3007,6729,6730],{"class":3039},"TotalAmount",[3007,6732,3390],{"class":3029},[3007,6734,6735],{"class":3009,"line":3489},[3007,6736,5354],{"class":3029},[3007,6738,6739,6741,6743,6745,6747,6749,6751,6753,6755],{"class":3009,"line":3495},[3007,6740,3057],{"class":3029},[3007,6742,3097],{"class":3060},[3007,6744,3064],{"class":3029},[3007,6746,6334],{"class":3039},[3007,6748,3069],{"class":3029},[3007,6750,6334],{"class":3039},[3007,6752,2996],{"class":3029},[3007,6754,6623],{"class":3039},[3007,6756,3390],{"class":3029},[3007,6758,6759,6761,6763,6765,6767,6769,6771,6773,6775],{"class":3009,"line":3501},[3007,6760,3057],{"class":3029},[3007,6762,4521],{"class":3060},[3007,6764,3064],{"class":3029},[3007,6766,6334],{"class":3039},[3007,6768,3069],{"class":3029},[3007,6770,6334],{"class":3039},[3007,6772,2996],{"class":3029},[3007,6774,5745],{"class":3039},[3007,6776,3390],{"class":3029},[3007,6778,6779,6781,6783],{"class":3009,"line":3507},[3007,6780,3057],{"class":3029},[3007,6782,3183],{"class":3060},[3007,6784,3186],{"class":3029},[3007,6786,6787],{"class":3009,"line":4226},[3007,6788,6789],{"class":3013},"// SQL: SELECT MONTH(PlacedAt), Status, COUNT(*), SUM(TotalAmount)\n",[3007,6791,6792],{"class":3009,"line":4232},[3007,6793,6794],{"class":3013},"//      FROM Orders WHERE YEAR(PlacedAt) = 2024\n",[3007,6796,6797],{"class":3009,"line":4237},[3007,6798,6799],{"class":3013},"//      GROUP BY MONTH(PlacedAt), Status\n",[3007,6801,6802],{"class":3009,"line":4255},[3007,6803,6804],{"class":3013},"//      ORDER BY MONTH(PlacedAt), Status\n",[6806,6807,6808,6811,6812,6815,6816,6819,6820,6823],"warning",{},[2984,6809,6810],{},"GroupBy і Client Evaluation",": Якщо після ",[2989,6813,6814],{},".GroupBy()"," ви звертаєтесь до повних об'єктів у групі (",[2989,6817,6818],{},"g.ToList()",") — EF Core часто переходить до client evaluation. Завжди агрегуйте у ",[2989,6821,6822],{},".Select()"," замість отримання груп як колекцій.",[3528,6825],{},[2960,6827,6829],{"id":6828},"any-all-count-exists","Any, All, Count, Exists",[2998,6831,6833],{"className":3000,"code":6832,"language":3002,"meta":3003,"style":3003},"// Any: чи є хоч один рядок (EXISTS у SQL)\nbool hasExpensive = await context.Products\n    .AnyAsync(p => p.Price > 50000);\n// SQL: SELECT CASE WHEN EXISTS(SELECT 1 FROM Products WHERE Price > 50000)\n//           THEN 1 ELSE 0 END\n\n// Count: кількість\nint totalProducts = await context.Products\n    .CountAsync(p => p.IsActive);\n// SQL: SELECT COUNT(*) FROM Products WHERE IsActive = 1\n\n// LongCount для великих таблиць\nlong bigCount = await context.Orders.LongCountAsync();\n// SQL: SELECT COUNT_BIG(*) FROM Orders\n\n// All: всі рядки відповідають умові (NOT EXISTS + NOT)\nbool allInStock = await context.Products\n    .AllAsync(p => p.Stock > 0);\n// SQL: SELECT CASE WHEN NOT EXISTS(\n//          SELECT 1 FROM Products WHERE NOT (Stock > 0)) THEN 1 ELSE 0 END\n\n// Sum, Average, Min, Max\ndecimal totalRevenue = await context.Orders\n    .Where(o => o.Status == OrderStatus.Delivered)\n    .SumAsync(o => o.TotalAmount);\n// SQL: SELECT SUM(TotalAmount) FROM Orders WHERE Status = 'Delivered'\n\ndecimal avgOrderValue = await context.Orders\n    .AverageAsync(o => o.TotalAmount);\n// SELECT AVG(TotalAmount) FROM Orders\n",[2989,6834,6835,6840,6857,6882,6887,6892,6896,6901,6918,6938,6943,6947,6952,6978,6983,6987,6992,7009,7036,7041,7046,7050,7055,7073,7103,7124,7129,7133,7150,7171],{"__ignoreMap":3003},[3007,6836,6837],{"class":3009,"line":3010},[3007,6838,6839],{"class":3013},"// Any: чи є хоч один рядок (EXISTS у SQL)\n",[3007,6841,6842,6844,6847,6849,6851,6853,6855],{"class":3009,"line":3017},[3007,6843,4581],{"class":3174},[3007,6845,6846],{"class":3039}," hasExpensive",[3007,6848,3043],{"class":3029},[3007,6850,3175],{"class":3174},[3007,6852,3223],{"class":3039},[3007,6854,2996],{"class":3029},[3007,6856,3051],{"class":3039},[3007,6858,6859,6861,6864,6866,6868,6870,6872,6874,6876,6878,6880],{"class":3009,"line":3023},[3007,6860,3057],{"class":3029},[3007,6862,6863],{"class":3060},"AnyAsync",[3007,6865,3064],{"class":3029},[3007,6867,2965],{"class":3039},[3007,6869,3069],{"class":3029},[3007,6871,2965],{"class":3039},[3007,6873,2996],{"class":3029},[3007,6875,3076],{"class":3039},[3007,6877,3079],{"class":3029},[3007,6879,4030],{"class":3082},[3007,6881,3282],{"class":3029},[3007,6883,6884],{"class":3009,"line":3054},[3007,6885,6886],{"class":3013},"// SQL: SELECT CASE WHEN EXISTS(SELECT 1 FROM Products WHERE Price > 50000)\n",[3007,6888,6889],{"class":3009,"line":3092},[3007,6890,6891],{"class":3013},"//           THEN 1 ELSE 0 END\n",[3007,6893,6894],{"class":3009,"line":3119},[3007,6895,3148],{"emptyLinePlaceholder":3147},[3007,6897,6898],{"class":3009,"line":3138},[3007,6899,6900],{"class":3013},"// Count: кількість\n",[3007,6902,6903,6905,6908,6910,6912,6914,6916],{"class":3009,"line":3144},[3007,6904,4815],{"class":3174},[3007,6906,6907],{"class":3039}," totalProducts",[3007,6909,3043],{"class":3029},[3007,6911,3175],{"class":3174},[3007,6913,3223],{"class":3039},[3007,6915,2996],{"class":3029},[3007,6917,3051],{"class":3039},[3007,6919,6920,6922,6924,6926,6928,6930,6932,6934,6936],{"class":3009,"line":3151},[3007,6921,3057],{"class":3029},[3007,6923,5015],{"class":3060},[3007,6925,3064],{"class":3029},[3007,6927,2965],{"class":3039},[3007,6929,3069],{"class":3029},[3007,6931,2965],{"class":3039},[3007,6933,2996],{"class":3029},[3007,6935,3387],{"class":3039},[3007,6937,3282],{"class":3029},[3007,6939,6940],{"class":3009,"line":3157},[3007,6941,6942],{"class":3013},"// SQL: SELECT COUNT(*) FROM Products WHERE IsActive = 1\n",[3007,6944,6945],{"class":3009,"line":3189},[3007,6946,3148],{"emptyLinePlaceholder":3147},[3007,6948,6949],{"class":3009,"line":3472},[3007,6950,6951],{"class":3013},"// LongCount для великих таблиць\n",[3007,6953,6954,6957,6960,6962,6964,6966,6968,6971,6973,6976],{"class":3009,"line":3478},[3007,6955,6956],{"class":3174},"long",[3007,6958,6959],{"class":3039}," bigCount",[3007,6961,3043],{"class":3029},[3007,6963,3175],{"class":3174},[3007,6965,3223],{"class":3039},[3007,6967,2996],{"class":3029},[3007,6969,6970],{"class":3039},"Orders",[3007,6972,2996],{"class":3029},[3007,6974,6975],{"class":3060},"LongCountAsync",[3007,6977,3186],{"class":3029},[3007,6979,6980],{"class":3009,"line":3484},[3007,6981,6982],{"class":3013},"// SQL: SELECT COUNT_BIG(*) FROM Orders\n",[3007,6984,6985],{"class":3009,"line":3489},[3007,6986,3148],{"emptyLinePlaceholder":3147},[3007,6988,6989],{"class":3009,"line":3495},[3007,6990,6991],{"class":3013},"// All: всі рядки відповідають умові (NOT EXISTS + NOT)\n",[3007,6993,6994,6996,6999,7001,7003,7005,7007],{"class":3009,"line":3501},[3007,6995,4581],{"class":3174},[3007,6997,6998],{"class":3039}," allInStock",[3007,7000,3043],{"class":3029},[3007,7002,3175],{"class":3174},[3007,7004,3223],{"class":3039},[3007,7006,2996],{"class":3029},[3007,7008,3051],{"class":3039},[3007,7010,7011,7013,7016,7018,7020,7022,7024,7026,7029,7031,7034],{"class":3009,"line":3507},[3007,7012,3057],{"class":3029},[3007,7014,7015],{"class":3060},"AllAsync",[3007,7017,3064],{"class":3029},[3007,7019,2965],{"class":3039},[3007,7021,3069],{"class":3029},[3007,7023,2965],{"class":3039},[3007,7025,2996],{"class":3029},[3007,7027,7028],{"class":3039},"Stock",[3007,7030,3079],{"class":3029},[3007,7032,7033],{"class":3082},"0",[3007,7035,3282],{"class":3029},[3007,7037,7038],{"class":3009,"line":4226},[3007,7039,7040],{"class":3013},"// SQL: SELECT CASE WHEN NOT EXISTS(\n",[3007,7042,7043],{"class":3009,"line":4232},[3007,7044,7045],{"class":3013},"//          SELECT 1 FROM Products WHERE NOT (Stock > 0)) THEN 1 ELSE 0 END\n",[3007,7047,7048],{"class":3009,"line":4237},[3007,7049,3148],{"emptyLinePlaceholder":3147},[3007,7051,7052],{"class":3009,"line":4255},[3007,7053,7054],{"class":3013},"// Sum, Average, Min, Max\n",[3007,7056,7057,7060,7063,7065,7067,7069,7071],{"class":3009,"line":4286},[3007,7058,7059],{"class":3174},"decimal",[3007,7061,7062],{"class":3039}," totalRevenue",[3007,7064,3043],{"class":3029},[3007,7066,3175],{"class":3174},[3007,7068,3223],{"class":3039},[3007,7070,2996],{"class":3029},[3007,7072,5636],{"class":3039},[3007,7074,7075,7077,7079,7081,7083,7085,7087,7089,7091,7093,7096,7098,7101],{"class":3009,"line":4295},[3007,7076,3057],{"class":3029},[3007,7078,3061],{"class":3060},[3007,7080,3064],{"class":3029},[3007,7082,5647],{"class":3039},[3007,7084,3069],{"class":3029},[3007,7086,5647],{"class":3039},[3007,7088,2996],{"class":3029},[3007,7090,5745],{"class":3039},[3007,7092,3784],{"class":3029},[3007,7094,7095],{"class":3039},"OrderStatus",[3007,7097,2996],{"class":3029},[3007,7099,7100],{"class":3039},"Delivered",[3007,7102,3390],{"class":3029},[3007,7104,7105,7107,7110,7112,7114,7116,7118,7120,7122],{"class":3009,"line":4301},[3007,7106,3057],{"class":3029},[3007,7108,7109],{"class":3060},"SumAsync",[3007,7111,3064],{"class":3029},[3007,7113,5647],{"class":3039},[3007,7115,3069],{"class":3029},[3007,7117,5647],{"class":3039},[3007,7119,2996],{"class":3029},[3007,7121,6730],{"class":3039},[3007,7123,3282],{"class":3029},[3007,7125,7126],{"class":3009,"line":4306},[3007,7127,7128],{"class":3013},"// SQL: SELECT SUM(TotalAmount) FROM Orders WHERE Status = 'Delivered'\n",[3007,7130,7131],{"class":3009,"line":4312},[3007,7132,3148],{"emptyLinePlaceholder":3147},[3007,7134,7135,7137,7140,7142,7144,7146,7148],{"class":3009,"line":4330},[3007,7136,7059],{"class":3174},[3007,7138,7139],{"class":3039}," avgOrderValue",[3007,7141,3043],{"class":3029},[3007,7143,3175],{"class":3174},[3007,7145,3223],{"class":3039},[3007,7147,2996],{"class":3029},[3007,7149,5636],{"class":3039},[3007,7151,7152,7154,7157,7159,7161,7163,7165,7167,7169],{"class":3009,"line":4371},[3007,7153,3057],{"class":3029},[3007,7155,7156],{"class":3060},"AverageAsync",[3007,7158,3064],{"class":3029},[3007,7160,5647],{"class":3039},[3007,7162,3069],{"class":3029},[3007,7164,5647],{"class":3039},[3007,7166,2996],{"class":3029},[3007,7168,6730],{"class":3039},[3007,7170,3282],{"class":3029},[3007,7172,7173],{"class":3009,"line":4380},[3007,7174,7175],{"class":3013},"// SELECT AVG(TotalAmount) FROM Orders\n",[3528,7177],{},[2960,7179,7181],{"id":7180},"first-single-find-отримання-одного-запису","First, Single, Find: отримання одного запису",[2998,7183,7185],{"className":3000,"code":7184,"language":3002,"meta":3003,"style":3003},"// FirstOrDefault: перший або null\nvar product = await context.Products\n    .Where(p => p.CategoryId == 5)\n    .OrderByDescending(p => p.Price)\n    .FirstOrDefaultAsync();\n// SELECT TOP 1 ... FROM Products WHERE CategoryId = 5 ORDER BY Price DESC\n\n// First: перший або Exception якщо немає\nvar requiredProduct = await context.Products\n    .FirstAsync(p => p.Sku == \"LAPTOP-001\");\n// SELECT TOP 1 ... WHERE Sku = 'LAPTOP-001'\n// InvalidOperationException якщо не знайдено\n\n// SingleOrDefault: очікується ОДИН запис (Exception якщо більше одного)\nvar uniqueProduct = await context.Products\n    .SingleOrDefaultAsync(p => p.Sku == \"LAPTOP-001\");\n// SELECT ... WHERE Sku = 'LAPTOP-001'\n// Exception якщо знайдено > 1 запис — корисно для перевірки унікальності\n\n// Find: пошук по PK (використовує кеш Identity Map)\nvar byId = await context.Products.FindAsync(productId);\n// Якщо рядок вже у Change Tracker → немає SQL-запиту!\n// Інакше: SELECT ... WHERE Id = @id\n",[2989,7186,7187,7192,7209,7234,7254,7263,7268,7272,7277,7294,7321,7326,7331,7335,7340,7357,7382,7387,7392,7396,7401,7430,7435],{"__ignoreMap":3003},[3007,7188,7189],{"class":3009,"line":3010},[3007,7190,7191],{"class":3013},"// FirstOrDefault: перший або null\n",[3007,7193,7194,7196,7199,7201,7203,7205,7207],{"class":3009,"line":3017},[3007,7195,3243],{"class":3174},[3007,7197,7198],{"class":3039}," product",[3007,7200,3043],{"class":3029},[3007,7202,3175],{"class":3174},[3007,7204,3223],{"class":3039},[3007,7206,2996],{"class":3029},[3007,7208,3051],{"class":3039},[3007,7210,7211,7213,7215,7217,7219,7221,7223,7225,7227,7229,7232],{"class":3009,"line":3023},[3007,7212,3057],{"class":3029},[3007,7214,3061],{"class":3060},[3007,7216,3064],{"class":3029},[3007,7218,2965],{"class":3039},[3007,7220,3069],{"class":3029},[3007,7222,2965],{"class":3039},[3007,7224,2996],{"class":3029},[3007,7226,3781],{"class":3039},[3007,7228,3784],{"class":3029},[3007,7230,7231],{"class":3082},"5",[3007,7233,3390],{"class":3029},[3007,7235,7236,7238,7240,7242,7244,7246,7248,7250,7252],{"class":3009,"line":3054},[3007,7237,3057],{"class":3029},[3007,7239,4677],{"class":3060},[3007,7241,3064],{"class":3029},[3007,7243,2965],{"class":3039},[3007,7245,3069],{"class":3029},[3007,7247,2965],{"class":3039},[3007,7249,2996],{"class":3029},[3007,7251,3076],{"class":3039},[3007,7253,3390],{"class":3029},[3007,7255,7256,7258,7261],{"class":3009,"line":3092},[3007,7257,3057],{"class":3029},[3007,7259,7260],{"class":3060},"FirstOrDefaultAsync",[3007,7262,3186],{"class":3029},[3007,7264,7265],{"class":3009,"line":3119},[3007,7266,7267],{"class":3013},"// SELECT TOP 1 ... FROM Products WHERE CategoryId = 5 ORDER BY Price DESC\n",[3007,7269,7270],{"class":3009,"line":3138},[3007,7271,3148],{"emptyLinePlaceholder":3147},[3007,7273,7274],{"class":3009,"line":3144},[3007,7275,7276],{"class":3013},"// First: перший або Exception якщо немає\n",[3007,7278,7279,7281,7284,7286,7288,7290,7292],{"class":3009,"line":3151},[3007,7280,3243],{"class":3174},[3007,7282,7283],{"class":3039}," requiredProduct",[3007,7285,3043],{"class":3029},[3007,7287,3175],{"class":3174},[3007,7289,3223],{"class":3039},[3007,7291,2996],{"class":3029},[3007,7293,3051],{"class":3039},[3007,7295,7296,7298,7301,7303,7305,7307,7309,7311,7314,7316,7319],{"class":3009,"line":3157},[3007,7297,3057],{"class":3029},[3007,7299,7300],{"class":3060},"FirstAsync",[3007,7302,3064],{"class":3029},[3007,7304,2965],{"class":3039},[3007,7306,3069],{"class":3029},[3007,7308,2965],{"class":3039},[3007,7310,2996],{"class":3029},[3007,7312,7313],{"class":3039},"Sku",[3007,7315,3784],{"class":3029},[3007,7317,7318],{"class":4166},"\"LAPTOP-001\"",[3007,7320,3282],{"class":3029},[3007,7322,7323],{"class":3009,"line":3189},[3007,7324,7325],{"class":3013},"// SELECT TOP 1 ... WHERE Sku = 'LAPTOP-001'\n",[3007,7327,7328],{"class":3009,"line":3472},[3007,7329,7330],{"class":3013},"// InvalidOperationException якщо не знайдено\n",[3007,7332,7333],{"class":3009,"line":3478},[3007,7334,3148],{"emptyLinePlaceholder":3147},[3007,7336,7337],{"class":3009,"line":3484},[3007,7338,7339],{"class":3013},"// SingleOrDefault: очікується ОДИН запис (Exception якщо більше одного)\n",[3007,7341,7342,7344,7347,7349,7351,7353,7355],{"class":3009,"line":3489},[3007,7343,3243],{"class":3174},[3007,7345,7346],{"class":3039}," uniqueProduct",[3007,7348,3043],{"class":3029},[3007,7350,3175],{"class":3174},[3007,7352,3223],{"class":3039},[3007,7354,2996],{"class":3029},[3007,7356,3051],{"class":3039},[3007,7358,7359,7361,7364,7366,7368,7370,7372,7374,7376,7378,7380],{"class":3009,"line":3495},[3007,7360,3057],{"class":3029},[3007,7362,7363],{"class":3060},"SingleOrDefaultAsync",[3007,7365,3064],{"class":3029},[3007,7367,2965],{"class":3039},[3007,7369,3069],{"class":3029},[3007,7371,2965],{"class":3039},[3007,7373,2996],{"class":3029},[3007,7375,7313],{"class":3039},[3007,7377,3784],{"class":3029},[3007,7379,7318],{"class":4166},[3007,7381,3282],{"class":3029},[3007,7383,7384],{"class":3009,"line":3501},[3007,7385,7386],{"class":3013},"// SELECT ... WHERE Sku = 'LAPTOP-001'\n",[3007,7388,7389],{"class":3009,"line":3507},[3007,7390,7391],{"class":3013},"// Exception якщо знайдено > 1 запис — корисно для перевірки унікальності\n",[3007,7393,7394],{"class":3009,"line":4226},[3007,7395,3148],{"emptyLinePlaceholder":3147},[3007,7397,7398],{"class":3009,"line":4232},[3007,7399,7400],{"class":3013},"// Find: пошук по PK (використовує кеш Identity Map)\n",[3007,7402,7403,7405,7408,7410,7412,7414,7416,7418,7420,7423,7425,7428],{"class":3009,"line":4237},[3007,7404,3243],{"class":3174},[3007,7406,7407],{"class":3039}," byId",[3007,7409,3043],{"class":3029},[3007,7411,3175],{"class":3174},[3007,7413,3223],{"class":3039},[3007,7415,2996],{"class":3029},[3007,7417,3228],{"class":3039},[3007,7419,2996],{"class":3029},[3007,7421,7422],{"class":3060},"FindAsync",[3007,7424,3064],{"class":3029},[3007,7426,7427],{"class":3039},"productId",[3007,7429,3282],{"class":3029},[3007,7431,7432],{"class":3009,"line":4255},[3007,7433,7434],{"class":3013},"// Якщо рядок вже у Change Tracker → немає SQL-запиту!\n",[3007,7436,7437],{"class":3009,"line":4286},[3007,7438,7439],{"class":3013},"// Інакше: SELECT ... WHERE Id = @id\n",[2969,7441,7443],{"id":7442},"find-vs-firstordefault-важлива-різниця","Find vs FirstOrDefault: важлива різниця",[2998,7445,7447],{"className":3000,"code":7446,"language":3002,"meta":3003,"style":3003},"// FIND: перевіряє Identity Map (кеш Change Tracker) ДО запиту до БД\nvar product = await context.Products.FindAsync(42);\n// 1. Перевіряє context.ChangeTracker — є product з Id=42?\n// 2. Якщо є → повертає з кешу без SQL\n// 3. Якщо немає → SELECT WHERE Id = 42\n\n// FIRSTORDEFAULT: ЗАВЖДИ виконує SQL (якщо немає перехоплення GQF тощо)\nvar product2 = await context.Products.FirstOrDefaultAsync(p => p.Id == 42);\n// ЗАВЖДИ виконує SELECT WHERE Id = 42\n\n// Практичне наслідування:\n// У сервісі, що читає і одразу змінює — Find краще (одне звернення до БД)\n// У ситуації де хочемо свіжі дані (не з кешу) — FirstOrDefault або AsNoTracking\n",[2989,7448,7449,7454,7481,7486,7491,7496,7500,7505,7544,7549,7553,7558,7563],{"__ignoreMap":3003},[3007,7450,7451],{"class":3009,"line":3010},[3007,7452,7453],{"class":3013},"// FIND: перевіряє Identity Map (кеш Change Tracker) ДО запиту до БД\n",[3007,7455,7456,7458,7460,7462,7464,7466,7468,7470,7472,7474,7476,7479],{"class":3009,"line":3017},[3007,7457,3243],{"class":3174},[3007,7459,7198],{"class":3039},[3007,7461,3043],{"class":3029},[3007,7463,3175],{"class":3174},[3007,7465,3223],{"class":3039},[3007,7467,2996],{"class":3029},[3007,7469,3228],{"class":3039},[3007,7471,2996],{"class":3029},[3007,7473,7422],{"class":3060},[3007,7475,3064],{"class":3029},[3007,7477,7478],{"class":3082},"42",[3007,7480,3282],{"class":3029},[3007,7482,7483],{"class":3009,"line":3023},[3007,7484,7485],{"class":3013},"// 1. Перевіряє context.ChangeTracker — є product з Id=42?\n",[3007,7487,7488],{"class":3009,"line":3054},[3007,7489,7490],{"class":3013},"// 2. Якщо є → повертає з кешу без SQL\n",[3007,7492,7493],{"class":3009,"line":3092},[3007,7494,7495],{"class":3013},"// 3. Якщо немає → SELECT WHERE Id = 42\n",[3007,7497,7498],{"class":3009,"line":3119},[3007,7499,3148],{"emptyLinePlaceholder":3147},[3007,7501,7502],{"class":3009,"line":3138},[3007,7503,7504],{"class":3013},"// FIRSTORDEFAULT: ЗАВЖДИ виконує SQL (якщо немає перехоплення GQF тощо)\n",[3007,7506,7507,7509,7512,7514,7516,7518,7520,7522,7524,7526,7528,7530,7532,7534,7536,7538,7540,7542],{"class":3009,"line":3144},[3007,7508,3243],{"class":3174},[3007,7510,7511],{"class":3039}," product2",[3007,7513,3043],{"class":3029},[3007,7515,3175],{"class":3174},[3007,7517,3223],{"class":3039},[3007,7519,2996],{"class":3029},[3007,7521,3228],{"class":3039},[3007,7523,2996],{"class":3029},[3007,7525,7260],{"class":3060},[3007,7527,3064],{"class":3029},[3007,7529,2965],{"class":3039},[3007,7531,3069],{"class":3029},[3007,7533,2965],{"class":3039},[3007,7535,2996],{"class":3029},[3007,7537,3416],{"class":3039},[3007,7539,3784],{"class":3029},[3007,7541,7478],{"class":3082},[3007,7543,3282],{"class":3029},[3007,7545,7546],{"class":3009,"line":3151},[3007,7547,7548],{"class":3013},"// ЗАВЖДИ виконує SELECT WHERE Id = 42\n",[3007,7550,7551],{"class":3009,"line":3157},[3007,7552,3148],{"emptyLinePlaceholder":3147},[3007,7554,7555],{"class":3009,"line":3189},[3007,7556,7557],{"class":3013},"// Практичне наслідування:\n",[3007,7559,7560],{"class":3009,"line":3472},[3007,7561,7562],{"class":3013},"// У сервісі, що читає і одразу змінює — Find краще (одне звернення до БД)\n",[3007,7564,7565],{"class":3009,"line":3478},[3007,7566,7567],{"class":3013},"// У ситуації де хочемо свіжі дані (не з кешу) — FirstOrDefault або AsNoTracking\n",[3528,7569],{},[2960,7571,7573],{"id":7572},"підзапити-та-умовна-логіка","Підзапити та умовна логіка",[2969,7575,7577],{"id":7576},"exists-any-у-підзапиті","EXISTS (Any у підзапиті)",[2998,7579,7581],{"className":3000,"code":7580,"language":3002,"meta":3003,"style":3003},"// Категорії, що мають хоча б один активний продукт\nvar categoriesWithProducts = await context.Categories\n    .Where(c => c.Products.Any(p => p.IsActive))\n    .ToListAsync();\n// SQL: SELECT ... FROM Categories c\n//      WHERE EXISTS (\n//          SELECT 1 FROM Products p\n//          WHERE p.CategoryId = c.Id AND p.IsActive = 1\n//      )\n",[2989,7582,7583,7588,7606,7644,7652,7657,7662,7667,7672],{"__ignoreMap":3003},[3007,7584,7585],{"class":3009,"line":3010},[3007,7586,7587],{"class":3013},"// Категорії, що мають хоча б один активний продукт\n",[3007,7589,7590,7592,7595,7597,7599,7601,7603],{"class":3009,"line":3017},[3007,7591,3243],{"class":3174},[3007,7593,7594],{"class":3039}," categoriesWithProducts",[3007,7596,3043],{"class":3029},[3007,7598,3175],{"class":3174},[3007,7600,3223],{"class":3039},[3007,7602,2996],{"class":3029},[3007,7604,7605],{"class":3039},"Categories\n",[3007,7607,7608,7610,7612,7614,7617,7619,7621,7623,7625,7627,7630,7632,7634,7636,7638,7640,7642],{"class":3009,"line":3023},[3007,7609,3057],{"class":3029},[3007,7611,3061],{"class":3060},[3007,7613,3064],{"class":3029},[3007,7615,7616],{"class":3039},"c",[3007,7618,3069],{"class":3029},[3007,7620,7616],{"class":3039},[3007,7622,2996],{"class":3029},[3007,7624,3228],{"class":3039},[3007,7626,2996],{"class":3029},[3007,7628,7629],{"class":3060},"Any",[3007,7631,3064],{"class":3029},[3007,7633,2965],{"class":3039},[3007,7635,3069],{"class":3029},[3007,7637,2965],{"class":3039},[3007,7639,2996],{"class":3029},[3007,7641,3387],{"class":3039},[3007,7643,4132],{"class":3029},[3007,7645,7646,7648,7650],{"class":3009,"line":3054},[3007,7647,3057],{"class":3029},[3007,7649,3183],{"class":3060},[3007,7651,3186],{"class":3029},[3007,7653,7654],{"class":3009,"line":3092},[3007,7655,7656],{"class":3013},"// SQL: SELECT ... FROM Categories c\n",[3007,7658,7659],{"class":3009,"line":3119},[3007,7660,7661],{"class":3013},"//      WHERE EXISTS (\n",[3007,7663,7664],{"class":3009,"line":3138},[3007,7665,7666],{"class":3013},"//          SELECT 1 FROM Products p\n",[3007,7668,7669],{"class":3009,"line":3144},[3007,7670,7671],{"class":3013},"//          WHERE p.CategoryId = c.Id AND p.IsActive = 1\n",[3007,7673,7674],{"class":3009,"line":3151},[3007,7675,7676],{"class":3013},"//      )\n",[2969,7678,7680],{"id":7679},"correlated-subquery-у-select","Correlated subquery у Select",[2998,7682,7684],{"className":3000,"code":7683,"language":3002,"meta":3003,"style":3003},"// Кожна категорія з кількістю активних продуктів\nvar categoriesWithCount = await context.Categories\n    .Select(c => new\n    {\n        c.Id,\n        c.Name,\n        ActiveProductCount = c.Products.Count(p => p.IsActive),\n        LatestProduct = c.Products\n            .OrderByDescending(p => p.CreatedAt)\n            .Select(p => p.Name)\n            .FirstOrDefault()\n    })\n    .ToListAsync();\n// SQL: SELECT c.Id, c.Name,\n//             (SELECT COUNT(*) FROM Products WHERE CategoryId=c.Id AND IsActive=1),\n//             (SELECT TOP 1 Name FROM Products WHERE CategoryId=c.Id ORDER BY CreatedAt DESC)\n//      FROM Categories c\n",[2989,7685,7686,7691,7708,7722,7726,7737,7747,7778,7791,7812,7832,7841,7845,7853,7858,7863,7868],{"__ignoreMap":3003},[3007,7687,7688],{"class":3009,"line":3010},[3007,7689,7690],{"class":3013},"// Кожна категорія з кількістю активних продуктів\n",[3007,7692,7693,7695,7698,7700,7702,7704,7706],{"class":3009,"line":3017},[3007,7694,3243],{"class":3174},[3007,7696,7697],{"class":3039}," categoriesWithCount",[3007,7699,3043],{"class":3029},[3007,7701,3175],{"class":3174},[3007,7703,3223],{"class":3039},[3007,7705,2996],{"class":3029},[3007,7707,7605],{"class":3039},[3007,7709,7710,7712,7714,7716,7718,7720],{"class":3009,"line":3023},[3007,7711,3057],{"class":3029},[3007,7713,3397],{"class":3060},[3007,7715,3064],{"class":3029},[3007,7717,7616],{"class":3039},[3007,7719,3069],{"class":3029},[3007,7721,5435],{"class":3174},[3007,7723,7724],{"class":3009,"line":3054},[3007,7725,5303],{"class":3029},[3007,7727,7728,7731,7733,7735],{"class":3009,"line":3092},[3007,7729,7730],{"class":3039},"        c",[3007,7732,2996],{"class":3029},[3007,7734,3416],{"class":3039},[3007,7736,5059],{"class":3029},[3007,7738,7739,7741,7743,7745],{"class":3009,"line":3119},[3007,7740,7730],{"class":3039},[3007,7742,2996],{"class":3029},[3007,7744,3110],{"class":3039},[3007,7746,5059],{"class":3029},[3007,7748,7749,7752,7754,7756,7758,7760,7762,7764,7766,7768,7770,7772,7774,7776],{"class":3009,"line":3138},[3007,7750,7751],{"class":3039},"        ActiveProductCount",[3007,7753,3043],{"class":3029},[3007,7755,7616],{"class":3039},[3007,7757,2996],{"class":3029},[3007,7759,3228],{"class":3039},[3007,7761,2996],{"class":3029},[3007,7763,5512],{"class":3060},[3007,7765,3064],{"class":3029},[3007,7767,2965],{"class":3039},[3007,7769,3069],{"class":3029},[3007,7771,2965],{"class":3039},[3007,7773,2996],{"class":3029},[3007,7775,3387],{"class":3039},[3007,7777,4692],{"class":3029},[3007,7779,7780,7783,7785,7787,7789],{"class":3009,"line":3144},[3007,7781,7782],{"class":3039},"        LatestProduct",[3007,7784,3043],{"class":3029},[3007,7786,7616],{"class":3039},[3007,7788,2996],{"class":3029},[3007,7790,3051],{"class":3039},[3007,7792,7793,7796,7798,7800,7802,7804,7806,7808,7810],{"class":3009,"line":3151},[3007,7794,7795],{"class":3029},"            .",[3007,7797,4677],{"class":3060},[3007,7799,3064],{"class":3029},[3007,7801,2965],{"class":3039},[3007,7803,3069],{"class":3029},[3007,7805,2965],{"class":3039},[3007,7807,2996],{"class":3029},[3007,7809,4899],{"class":3039},[3007,7811,3390],{"class":3029},[3007,7813,7814,7816,7818,7820,7822,7824,7826,7828,7830],{"class":3009,"line":3157},[3007,7815,7795],{"class":3029},[3007,7817,3397],{"class":3060},[3007,7819,3064],{"class":3029},[3007,7821,2965],{"class":3039},[3007,7823,3069],{"class":3029},[3007,7825,2965],{"class":3039},[3007,7827,2996],{"class":3029},[3007,7829,3110],{"class":3039},[3007,7831,3390],{"class":3029},[3007,7833,7834,7836,7839],{"class":3009,"line":3189},[3007,7835,7795],{"class":3029},[3007,7837,7838],{"class":3060},"FirstOrDefault",[3007,7840,5904],{"class":3029},[3007,7842,7843],{"class":3009,"line":3472},[3007,7844,5354],{"class":3029},[3007,7846,7847,7849,7851],{"class":3009,"line":3478},[3007,7848,3057],{"class":3029},[3007,7850,3183],{"class":3060},[3007,7852,3186],{"class":3029},[3007,7854,7855],{"class":3009,"line":3484},[3007,7856,7857],{"class":3013},"// SQL: SELECT c.Id, c.Name,\n",[3007,7859,7860],{"class":3009,"line":3489},[3007,7861,7862],{"class":3013},"//             (SELECT COUNT(*) FROM Products WHERE CategoryId=c.Id AND IsActive=1),\n",[3007,7864,7865],{"class":3009,"line":3495},[3007,7866,7867],{"class":3013},"//             (SELECT TOP 1 Name FROM Products WHERE CategoryId=c.Id ORDER BY CreatedAt DESC)\n",[3007,7869,7870],{"class":3009,"line":3501},[3007,7871,7872],{"class":3013},"//      FROM Categories c\n",[2969,7874,7876],{"id":7875},"case-when-через-умовний-оператор-c","Case When через умовний оператор C#",[2998,7878,7880],{"className":3000,"code":7879,"language":3002,"meta":3003,"style":3003},"// CASE WHEN через тернарний оператор\nvar productSummaries = await context.Products\n    .Select(p => new\n    {\n        p.Id,\n        p.Name,\n        PriceCategory = p.Price \u003C 1000  ? \"Budget\" :\n                        p.Price \u003C 10000 ? \"Mid-range\" :\n                                         \"Premium\"\n    })\n    .ToListAsync();\n// SQL: SELECT Id, Name,\n//             CASE WHEN Price \u003C 1000 THEN 'Budget'\n//                  WHEN Price \u003C 10000 THEN 'Mid-range'\n//                  ELSE 'Premium' END AS PriceCategory\n//      FROM Products\n",[2989,7881,7882,7887,7904,7918,7922,7932,7942,7969,7989,7994,7998,8006,8011,8016,8021,8026],{"__ignoreMap":3003},[3007,7883,7884],{"class":3009,"line":3010},[3007,7885,7886],{"class":3013},"// CASE WHEN через тернарний оператор\n",[3007,7888,7889,7891,7894,7896,7898,7900,7902],{"class":3009,"line":3017},[3007,7890,3243],{"class":3174},[3007,7892,7893],{"class":3039}," productSummaries",[3007,7895,3043],{"class":3029},[3007,7897,3175],{"class":3174},[3007,7899,3223],{"class":3039},[3007,7901,2996],{"class":3029},[3007,7903,3051],{"class":3039},[3007,7905,7906,7908,7910,7912,7914,7916],{"class":3009,"line":3023},[3007,7907,3057],{"class":3029},[3007,7909,3397],{"class":3060},[3007,7911,3064],{"class":3029},[3007,7913,2965],{"class":3039},[3007,7915,3069],{"class":3029},[3007,7917,5435],{"class":3174},[3007,7919,7920],{"class":3009,"line":3054},[3007,7921,5303],{"class":3029},[3007,7923,7924,7926,7928,7930],{"class":3009,"line":3092},[3007,7925,5444],{"class":3039},[3007,7927,2996],{"class":3029},[3007,7929,3416],{"class":3039},[3007,7931,5059],{"class":3029},[3007,7933,7934,7936,7938,7940],{"class":3009,"line":3119},[3007,7935,5444],{"class":3039},[3007,7937,2996],{"class":3029},[3007,7939,3110],{"class":3039},[3007,7941,5059],{"class":3029},[3007,7943,7944,7947,7949,7951,7953,7955,7958,7960,7963,7966],{"class":3009,"line":3138},[3007,7945,7946],{"class":3039},"        PriceCategory",[3007,7948,3043],{"class":3029},[3007,7950,2965],{"class":3039},[3007,7952,2996],{"class":3029},[3007,7954,3076],{"class":3039},[3007,7956,7957],{"class":3029}," \u003C ",[3007,7959,3083],{"class":3082},[3007,7961,7962],{"class":3029},"  ? ",[3007,7964,7965],{"class":4166},"\"Budget\"",[3007,7967,7968],{"class":3029}," :\n",[3007,7970,7971,7974,7976,7978,7980,7982,7984,7987],{"class":3009,"line":3144},[3007,7972,7973],{"class":3039},"                        p",[3007,7975,2996],{"class":3029},[3007,7977,3076],{"class":3039},[3007,7979,7957],{"class":3029},[3007,7981,3600],{"class":3082},[3007,7983,4649],{"class":3029},[3007,7985,7986],{"class":4166},"\"Mid-range\"",[3007,7988,7968],{"class":3029},[3007,7990,7991],{"class":3009,"line":3151},[3007,7992,7993],{"class":4166},"                                         \"Premium\"\n",[3007,7995,7996],{"class":3009,"line":3157},[3007,7997,5354],{"class":3029},[3007,7999,8000,8002,8004],{"class":3009,"line":3189},[3007,8001,3057],{"class":3029},[3007,8003,3183],{"class":3060},[3007,8005,3186],{"class":3029},[3007,8007,8008],{"class":3009,"line":3472},[3007,8009,8010],{"class":3013},"// SQL: SELECT Id, Name,\n",[3007,8012,8013],{"class":3009,"line":3478},[3007,8014,8015],{"class":3013},"//             CASE WHEN Price \u003C 1000 THEN 'Budget'\n",[3007,8017,8018],{"class":3009,"line":3484},[3007,8019,8020],{"class":3013},"//                  WHEN Price \u003C 10000 THEN 'Mid-range'\n",[3007,8022,8023],{"class":3009,"line":3489},[3007,8024,8025],{"class":3013},"//                  ELSE 'Premium' END AS PriceCategory\n",[3007,8027,8028],{"class":3009,"line":3495},[3007,8029,6159],{"class":3013},[3528,8031],{},[2960,8033,8035],{"id":8034},"практичні-завдання-частина-1","Практичні завдання (Частина 1)",[2969,8037,8039],{"id":8038},"рівень-1-базовий","Рівень 1 — Базовий",[8041,8042,8043,8048,8051,8067,8074,8079,8090,8225,8230,8244,8258],"steps",{},[2965,8044,8045],{},[2984,8046,8047],{},"Завдання 1.1: IQueryable vs IEnumerable",[2965,8049,8050],{},"Напишіть два варіанти запиту «10 найдорожчих активних продуктів категорії Electronics»:",[8052,8053,8054,8060],"ol",{},[5805,8055,8056,8057,8059],{},"Через ",[2989,8058,2972],{}," (все у SQL)",[5805,8061,8062,8063,8066],{},"Through ",[2989,8064,8065],{},"ToListAsync()"," першим, потім LINQ в пам'яті",[2965,8068,8069,8070,8073],{},"Порівняння: використайте ",[2989,8071,8072],{},"LogTo(Console.WriteLine)"," і перевірте, який SQL генерується. Яка різниця у кількості переданих даних?",[2965,8075,8076],{},[2984,8077,8078],{},"Завдання 1.2: Динамічна фільтрація",[2965,8080,8081,8082,8085,8086,8089],{},"Реалізуйте ",[2989,8083,8084],{},"ProductSearchQuery"," (Name?, MinPrice?, MaxPrice?, CategoryId?, IsActive?, SortBy?, SortAsc?) і метод ",[2989,8087,8088],{},"ApplyFilters(IQueryable\u003CProduct> query)"," що будує запит умовно:",[2998,8091,8093],{"className":3000,"code":8092,"language":3002,"meta":3003,"style":3003},"if (filter.Name is not null)\n    query = query.Where(p => p.Name.Contains(filter.Name));\nif (filter.MinPrice.HasValue)\n    query = query.Where(p => p.Price >= filter.MinPrice.Value);\n// ...\n",[2989,8094,8095,8121,8161,8181,8220],{"__ignoreMap":3003},[3007,8096,8097,8100,8103,8106,8108,8110,8113,8116,8119],{"class":3009,"line":3010},[3007,8098,8099],{"class":4629},"if",[3007,8101,8102],{"class":3029}," (",[3007,8104,8105],{"class":3039},"filter",[3007,8107,2996],{"class":3029},[3007,8109,3110],{"class":3039},[3007,8111,8112],{"class":3174}," is",[3007,8114,8115],{"class":3174}," not",[3007,8117,8118],{"class":3174}," null",[3007,8120,3390],{"class":3029},[3007,8122,8123,8126,8128,8130,8132,8134,8136,8138,8140,8142,8144,8146,8148,8150,8152,8154,8156,8158],{"class":3009,"line":3017},[3007,8124,8125],{"class":3039},"    query",[3007,8127,3043],{"class":3029},[3007,8129,3040],{"class":3039},[3007,8131,2996],{"class":3029},[3007,8133,3061],{"class":3060},[3007,8135,3064],{"class":3029},[3007,8137,2965],{"class":3039},[3007,8139,3069],{"class":3029},[3007,8141,2965],{"class":3039},[3007,8143,2996],{"class":3029},[3007,8145,3110],{"class":3039},[3007,8147,2996],{"class":3029},[3007,8149,4121],{"class":3060},[3007,8151,3064],{"class":3029},[3007,8153,8105],{"class":3039},[3007,8155,2996],{"class":3029},[3007,8157,3110],{"class":3039},[3007,8159,8160],{"class":3029},"));\n",[3007,8162,8163,8165,8167,8169,8171,8174,8176,8179],{"class":3009,"line":3023},[3007,8164,8099],{"class":4629},[3007,8166,8102],{"class":3029},[3007,8168,8105],{"class":3039},[3007,8170,2996],{"class":3029},[3007,8172,8173],{"class":3039},"MinPrice",[3007,8175,2996],{"class":3029},[3007,8177,8178],{"class":3039},"HasValue",[3007,8180,3390],{"class":3029},[3007,8182,8183,8185,8187,8189,8191,8193,8195,8197,8199,8201,8203,8205,8207,8209,8211,8213,8215,8218],{"class":3009,"line":3054},[3007,8184,8125],{"class":3039},[3007,8186,3043],{"class":3029},[3007,8188,3040],{"class":3039},[3007,8190,2996],{"class":3029},[3007,8192,3061],{"class":3060},[3007,8194,3064],{"class":3029},[3007,8196,2965],{"class":3039},[3007,8198,3069],{"class":3029},[3007,8200,2965],{"class":3039},[3007,8202,2996],{"class":3029},[3007,8204,3076],{"class":3039},[3007,8206,4014],{"class":3029},[3007,8208,8105],{"class":3039},[3007,8210,2996],{"class":3029},[3007,8212,8173],{"class":3039},[3007,8214,2996],{"class":3029},[3007,8216,8217],{"class":3039},"Value",[3007,8219,3282],{"class":3029},[3007,8221,8222],{"class":3009,"line":3092},[3007,8223,8224],{"class":3013},"// ...\n",[2965,8226,8227],{},[2984,8228,8229],{},"Завдання 1.3: Пагінація з метаданими",[2965,8231,8081,8232,8235,8236,8239,8240,8243],{},[2989,8233,8234],{},"PaginatedResult\u003CT>"," і generic метод ",[2989,8237,8238],{},"ToPagedResultAsync\u003CT>(IQueryable\u003CT> query, int page, int pageSize)"," що в ",[2984,8241,8242],{},"одній транзакції"," виконує:",[8052,8245,8246,8252],{},[5805,8247,8248,8251],{},[2989,8249,8250],{},"CountAsync()"," для загальної кількості",[5805,8253,8254,8257],{},[2989,8255,8256],{},"Skip().Take().ToListAsync()"," для поточної сторінки",[2965,8259,8260,8261,3307,8264,3307,8267,2996],{},"Поверніть також ",[2989,8262,8263],{},"TotalPages",[2989,8265,8266],{},"HasPreviousPage",[2989,8268,8269],{},"HasNextPage",[2969,8271,8273],{"id":8272},"рівень-2-логіка","Рівень 2 — Логіка",[8041,8275,8276,8281,8291,8323,8332,8337,8343,8351],{},[2965,8277,8278],{},[2984,8279,8280],{},"Завдання 2.1: Складна проєкція",[2965,8282,8283,8286,8287,8290],{},[2989,8284,8285],{},"Order"," → ",[2989,8288,8289],{},"OrderDto"," де:",[8292,8293,8294,8299,8308,8317],"ul",{},[5805,8295,8296,8298],{},[2989,8297,6730],{}," — сума з рядків (не з поля)",[5805,8300,8301,8304,8305,5108],{},[2989,8302,8303],{},"LineItemsSummary"," — рядки без видалених (",[2989,8306,8307],{},"li.IsDeleted = false",[5805,8309,8310,8313,8314,5108],{},[2989,8311,8312],{},"HasDiscount"," — bool (чи є хоч один рядок з ",[2989,8315,8316],{},"Discount > 0",[5805,8318,8319,8322],{},[2989,8320,8321],{},"StatusLabel"," — CASE WHEN: Pending/\"На очікуванні\", Processing/\"В обробці\", Delivered/\"Доставлено\"",[2965,8324,8325,8326,8328,8329,8331],{},"Реалізуйте через ",[2989,8327,3397],{}," без ",[2989,8330,5377],{}," — все має бути у SQL.",[2965,8333,8334],{},[2984,8335,8336],{},"Завдання 2.2: Складний GroupBy",[2965,8338,8339,8340,8342],{},"Для ",[2989,8341,8285],{}," (CustomerId, Status, PlacedAt, TotalAmount) напишіть звіт:",[8292,8344,8345,8348],{},[5805,8346,8347],{},"TOP 10 клієнтів за сумою замовлень за останній рік",[5805,8349,8350],{},"Для кожного: кількість замовлень, загальна сума, середня сума, останнє замовлення",[2965,8352,8353],{},"Один LINQ-запит, без підзапитів у C#.",[2969,8355,8357],{"id":8356},"рівень-3-архітектура","Рівень 3 — Архітектура",[8041,8359,8360,8365,8371,8589,8592,8618],{},[2965,8361,8362],{},[2984,8363,8364],{},"Завдання 3.1: Специфікаційний патерн",[2965,8366,8081,8367,8370],{},[2989,8368,8369],{},"Specification\u003CT>"," pattern:",[2998,8372,8374],{"className":3000,"code":8373,"language":3002,"meta":3003,"style":3003},"public abstract class Specification\u003CT>\n{\n    public abstract Expression\u003CFunc\u003CT, bool>> ToExpression();\n\n    public bool IsSatisfiedBy(T entity) => ToExpression().Compile()(entity);\n\n    public Specification\u003CT> And(Specification\u003CT> other) =>\n        new AndSpecification\u003CT>(this, other);\n\n    public Specification\u003CT> Or(Specification\u003CT> other) =>\n        new OrSpecification\u003CT>(this, other);\n}\n",[2989,8375,8376,8397,8401,8432,8436,8470,8474,8506,8530,8534,8563,8584],{"__ignoreMap":3003},[3007,8377,8378,8381,8384,8387,8390,8392,8395],{"class":3009,"line":3010},[3007,8379,8380],{"class":3174},"public",[3007,8382,8383],{"class":3174}," abstract",[3007,8385,8386],{"class":3174}," class",[3007,8388,8389],{"class":3026}," Specification",[3007,8391,3030],{"class":3029},[3007,8393,8394],{"class":3026},"T",[3007,8396,5041],{"class":3029},[3007,8398,8399],{"class":3009,"line":3017},[3007,8400,4635],{"class":3029},[3007,8402,8403,8406,8408,8411,8413,8416,8418,8420,8422,8424,8427,8430],{"class":3009,"line":3023},[3007,8404,8405],{"class":3174},"    public",[3007,8407,8383],{"class":3174},[3007,8409,8410],{"class":3026}," Expression",[3007,8412,3030],{"class":3029},[3007,8414,8415],{"class":3026},"Func",[3007,8417,3030],{"class":3029},[3007,8419,8394],{"class":3026},[3007,8421,3307],{"class":3029},[3007,8423,4581],{"class":3174},[3007,8425,8426],{"class":3029},">> ",[3007,8428,8429],{"class":3060},"ToExpression",[3007,8431,3186],{"class":3029},[3007,8433,8434],{"class":3009,"line":3054},[3007,8435,3148],{"emptyLinePlaceholder":3147},[3007,8437,8438,8440,8442,8445,8447,8449,8452,8454,8456,8459,8462,8465,8468],{"class":3009,"line":3092},[3007,8439,8405],{"class":3174},[3007,8441,3576],{"class":3174},[3007,8443,8444],{"class":3060}," IsSatisfiedBy",[3007,8446,3064],{"class":3029},[3007,8448,8394],{"class":3026},[3007,8450,8451],{"class":3039}," entity",[3007,8453,3589],{"class":3029},[3007,8455,8429],{"class":3060},[3007,8457,8458],{"class":3029},"().",[3007,8460,8461],{"class":3060},"Compile",[3007,8463,8464],{"class":3029},"()(",[3007,8466,8467],{"class":3039},"entity",[3007,8469,3282],{"class":3029},[3007,8471,8472],{"class":3009,"line":3119},[3007,8473,3148],{"emptyLinePlaceholder":3147},[3007,8475,8476,8478,8480,8482,8484,8486,8489,8491,8494,8496,8498,8500,8503],{"class":3009,"line":3138},[3007,8477,8405],{"class":3174},[3007,8479,8389],{"class":3026},[3007,8481,3030],{"class":3029},[3007,8483,8394],{"class":3026},[3007,8485,3036],{"class":3029},[3007,8487,8488],{"class":3060},"And",[3007,8490,3064],{"class":3029},[3007,8492,8493],{"class":3026},"Specification",[3007,8495,3030],{"class":3029},[3007,8497,8394],{"class":3026},[3007,8499,3036],{"class":3029},[3007,8501,8502],{"class":3039},"other",[3007,8504,8505],{"class":3029},") =>\n",[3007,8507,8508,8511,8514,8516,8518,8521,8524,8526,8528],{"class":3009,"line":3144},[3007,8509,8510],{"class":3174},"        new",[3007,8512,8513],{"class":3026}," AndSpecification",[3007,8515,3030],{"class":3029},[3007,8517,8394],{"class":3026},[3007,8519,8520],{"class":3029},">(",[3007,8522,8523],{"class":3174},"this",[3007,8525,3307],{"class":3029},[3007,8527,8502],{"class":3039},[3007,8529,3282],{"class":3029},[3007,8531,8532],{"class":3009,"line":3151},[3007,8533,3148],{"emptyLinePlaceholder":3147},[3007,8535,8536,8538,8540,8542,8544,8546,8549,8551,8553,8555,8557,8559,8561],{"class":3009,"line":3157},[3007,8537,8405],{"class":3174},[3007,8539,8389],{"class":3026},[3007,8541,3030],{"class":3029},[3007,8543,8394],{"class":3026},[3007,8545,3036],{"class":3029},[3007,8547,8548],{"class":3060},"Or",[3007,8550,3064],{"class":3029},[3007,8552,8493],{"class":3026},[3007,8554,3030],{"class":3029},[3007,8556,8394],{"class":3026},[3007,8558,3036],{"class":3029},[3007,8560,8502],{"class":3039},[3007,8562,8505],{"class":3029},[3007,8564,8565,8567,8570,8572,8574,8576,8578,8580,8582],{"class":3009,"line":3189},[3007,8566,8510],{"class":3174},[3007,8568,8569],{"class":3026}," OrSpecification",[3007,8571,3030],{"class":3029},[3007,8573,8394],{"class":3026},[3007,8575,8520],{"class":3029},[3007,8577,8523],{"class":3174},[3007,8579,3307],{"class":3029},[3007,8581,8502],{"class":3039},[3007,8583,3282],{"class":3029},[3007,8585,8586],{"class":3009,"line":3472},[3007,8587,8588],{"class":3029},"}\n",[2965,8590,8591],{},"Реалізуйте:",[8292,8593,8594,8602,8610],{},[5805,8595,8596,8286,8599],{},[2989,8597,8598],{},"ActiveProductSpecification",[2989,8600,8601],{},"!IsDeleted && IsActive",[5805,8603,8604,8286,8607],{},[2989,8605,8606],{},"PriceRangeSpecification(min, max)",[2989,8608,8609],{},"Price >= min && Price \u003C= max",[5805,8611,8612,8286,8615],{},[2989,8613,8614],{},"CategorySpecification(ids)",[2989,8616,8617],{},"ids.Contains(CategoryId)",[2965,8619,8620,8621,2996],{},"Метод репозиторію: ",[2989,8622,8623],{},"GetAsync(Specification\u003CProduct> spec)",[3528,8625],{},[2960,8627,8629],{"id":8628},"підсумок-частини-1","Підсумок частини 1",[2965,8631,8632],{},"У першій частині розклали фундамент LINQ у EF Core:",[8292,8634,8635,8648,8653,8659,8665,8674,8686,8699],{},[5805,8636,8637,8644,8645,8647],{},[2984,8638,8639,8641,8642],{},[2989,8640,2991],{}," vs ",[2989,8643,2995],{},": ключова різниця — запит будується лазово і матеріалізується один раз. Ранній ",[2989,8646,8065],{}," → все до пам'яті.",[5805,8649,8650,8652],{},[2984,8651,3302],{},": LINQ-вирази → Expression Tree → SQL Translator → SQL. Не кожен C# вираз транслюється.",[5805,8654,8655,8658],{},[2984,8656,8657],{},"Server vs Client Evaluation",": EF Core 3+ кидає виняток при нетрансльовних виразах — безпечніша поведінка.",[5805,8660,8661,8664],{},[2984,8662,8663],{},"Where, OrderBy, Skip/Take",": базові операції з трансляцією і ідіоматичними патернами.",[5805,8666,8667,8670,8671,8673],{},[2984,8668,8669],{},"Select (проєкція)",": уникаємо ",[2989,8672,5193],{},", читаємо лише потрібні стовпці. Вкладені навігаційні властивості у Select → JOIN без явного Include.",[5805,8675,8676,8678,8679,5149,8682,8685],{},[2984,8677,3522],{},": ",[2989,8680,8681],{},"GROUP BY",[2989,8683,8684],{},"HAVING",", агрегаційні функції, множинні ключі.",[5805,8687,8688,8691,8692,8695,8696,8698],{},[2984,8689,8690],{},"Any/All/Count/Find",": семантика, різниця ",[2989,8693,8694],{},"Find"," (Identity Map) vs ",[2989,8697,7838],{}," (завжди SQL).",[5805,8700,8701,8704,8705,8707,8708,8711],{},[2984,8702,8703],{},"Підзапити",": вкладений ",[2989,8706,3397],{},", correlated subquery, ",[2989,8709,8710],{},"CASE WHEN"," через тернарний оператор.",[2965,8713,8714,8719,8720,3307,8723,8726,8727,8730,8731,8730,8734,8737],{},[8715,8716,8718],"a",{"href":8717},"/csharp/ef-core/16.linq-queries-part2","У другій частині"," — ",[2989,8721,8722],{},"EF.Functions",[2989,8724,8725],{},"FromSqlRaw",", складні JOIN, ",[2989,8728,8729],{},"Union","/",[2989,8732,8733],{},"Intersect",[2989,8735,8736],{},"Except",", window 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розбір LINQ в EF Core — трансляція у SQL, IQueryable vs IEnumerable, Server vs Client Evaluation, проєкції Select, GroupBy, підзапити, складні умови фільтрації. 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