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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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Ви вже пройшли розділ ADO.NET, тому знаєте, як це виглядає насправді:",[2968,2969,2975],"pre",{"className":2970,"code":2971,"filename":2972,"language":2973,"meta":2974,"style":2974},"language-csharp shiki shiki-themes light-plus dark-plus dark-plus","public async Task\u003CList\u003COrderDto>> GetActiveOrdersAsync(int customerId)\n{\n    var orders = new List\u003COrderDto>();\n\n    const string sql = @\"\n        SELECT o.Id, o.CreatedAt, o.TotalAmount, o.Status,\n               oi.Id AS ItemId, oi.Quantity, oi.UnitPrice,\n               p.Id AS ProductId, p.Name AS ProductName, p.Sku\n        FROM Orders o\n        INNER JOIN OrderItems oi ON oi.OrderId = o.Id\n        INNER JOIN Products p ON p.Id = oi.ProductId\n        WHERE o.CustomerId = @customerId\n          AND o.Status = 'Active'\n        ORDER BY o.CreatedAt DESC\";\n\n    await using var connection = new SqlConnection(_connectionString);\n    await connection.OpenAsync();\n\n    await using var command = new SqlCommand(sql, connection);\n    command.Parameters.AddWithValue(\"@customerId\", customerId);\n\n    await using var reader = await command.ExecuteReaderAsync();\n\n    var orderMap = new Dictionary\u003Cint, OrderDto>();\n\n    while (await reader.ReadAsync())\n    {\n        var orderId = reader.GetInt32(reader.GetOrdinal(\"Id\"));\n\n        if (!orderMap.TryGetValue(orderId, out var order))\n        {\n            order = new OrderDto\n            {\n                Id        = orderId,\n                CreatedAt = reader.GetDateTime(reader.GetOrdinal(\"CreatedAt\")),\n                Total     = reader.GetDecimal(reader.GetOrdinal(\"TotalAmount\")),\n                Status    = reader.GetString(reader.GetOrdinal(\"Status\")),\n                Items     = new List\u003COrderItemDto>()\n            };\n            orderMap[orderId] = order;\n        }\n\n        order.Items.Add(new OrderItemDto\n        {\n            Id          = reader.GetInt32(reader.GetOrdinal(\"ItemId\")),\n            Quantity    = reader.GetInt32(reader.GetOrdinal(\"Quantity\")),\n            UnitPrice   = reader.GetDecimal(reader.GetOrdinal(\"UnitPrice\")),\n            ProductId   = reader.GetInt32(reader.GetOrdinal(\"ProductId\")),\n            ProductName = reader.GetString(reader.GetOrdinal(\"ProductName\")),\n            Sku         = reader.GetString(reader.GetOrdinal(\"Sku\"))\n        });\n    }\n\n    return orderMap.Values.ToList();\n}\n","OrderRepository.cs","csharp","",[2976,2977,2978,3026,3032,3057,3064,3082,3088,3094,3100,3106,3112,3118,3124,3130,3139,3144,3175,3191,3196,3228,3256,3261,3287,3292,3317,3322,3343,3349,3385,3390,3425,3431,3444,3450,3464,3495,3526,3557,3577,3583,3602,3608,3613,3636,3641,3671,3700,3730,3759,3788,3818,3824,3830,3835,3855],"code",{"__ignoreMap":2974},[2979,2980,2983,2987,2990,2994,2998,3001,3003,3006,3009,3013,3016,3019,3023],"span",{"class":2981,"line":2982},"line",1,[2979,2984,2986],{"class":2985},"su1O8","public",[2979,2988,2989],{"class":2985}," async",[2979,2991,2993],{"class":2992},"sN1BT"," Task",[2979,2995,2997],{"class":2996},"sHH4Y","\u003C",[2979,2999,3000],{"class":2992},"List",[2979,3002,2997],{"class":2996},[2979,3004,3005],{"class":2992},"OrderDto",[2979,3007,3008],{"class":2996},">> ",[2979,3010,3012],{"class":3011},"s8Opu","GetActiveOrdersAsync",[2979,3014,3015],{"class":2996},"(",[2979,3017,3018],{"class":2985},"int",[2979,3020,3022],{"class":3021},"siwwj"," customerId",[2979,3024,3025],{"class":2996},")\n",[2979,3027,3029],{"class":2981,"line":3028},2,[2979,3030,3031],{"class":2996},"{\n",[2979,3033,3035,3038,3041,3044,3047,3050,3052,3054],{"class":2981,"line":3034},3,[2979,3036,3037],{"class":2985},"    var",[2979,3039,3040],{"class":3021}," orders",[2979,3042,3043],{"class":2996}," = ",[2979,3045,3046],{"class":2985},"new",[2979,3048,3049],{"class":2992}," List",[2979,3051,2997],{"class":2996},[2979,3053,3005],{"class":2992},[2979,3055,3056],{"class":2996},">();\n",[2979,3058,3060],{"class":2981,"line":3059},4,[2979,3061,3063],{"emptyLinePlaceholder":3062},true,"\n",[2979,3065,3067,3070,3073,3076,3078],{"class":2981,"line":3066},5,[2979,3068,3069],{"class":2985},"    const",[2979,3071,3072],{"class":2985}," string",[2979,3074,3075],{"class":3021}," sql",[2979,3077,3043],{"class":2996},[2979,3079,3081],{"class":3080},"sbdoH","@\"\n",[2979,3083,3085],{"class":2981,"line":3084},6,[2979,3086,3087],{"class":3080},"        SELECT o.Id, o.CreatedAt, o.TotalAmount, o.Status,\n",[2979,3089,3091],{"class":2981,"line":3090},7,[2979,3092,3093],{"class":3080},"               oi.Id AS ItemId, oi.Quantity, oi.UnitPrice,\n",[2979,3095,3097],{"class":2981,"line":3096},8,[2979,3098,3099],{"class":3080},"               p.Id AS ProductId, p.Name AS ProductName, p.Sku\n",[2979,3101,3103],{"class":2981,"line":3102},9,[2979,3104,3105],{"class":3080},"        FROM Orders o\n",[2979,3107,3109],{"class":2981,"line":3108},10,[2979,3110,3111],{"class":3080},"        INNER JOIN OrderItems oi ON oi.OrderId = o.Id\n",[2979,3113,3115],{"class":2981,"line":3114},11,[2979,3116,3117],{"class":3080},"        INNER JOIN Products p ON p.Id = oi.ProductId\n",[2979,3119,3121],{"class":2981,"line":3120},12,[2979,3122,3123],{"class":3080},"        WHERE o.CustomerId = @customerId\n",[2979,3125,3127],{"class":2981,"line":3126},13,[2979,3128,3129],{"class":3080},"          AND o.Status = 'Active'\n",[2979,3131,3133,3136],{"class":2981,"line":3132},14,[2979,3134,3135],{"class":3080},"        ORDER BY o.CreatedAt DESC\"",[2979,3137,3138],{"class":2996},";\n",[2979,3140,3142],{"class":2981,"line":3141},15,[2979,3143,3063],{"emptyLinePlaceholder":3062},[2979,3145,3147,3150,3154,3157,3160,3162,3164,3167,3169,3172],{"class":2981,"line":3146},16,[2979,3148,3149],{"class":2985},"    await",[2979,3151,3153],{"class":3152},"sCDza"," using",[2979,3155,3156],{"class":2985}," var",[2979,3158,3159],{"class":3021}," connection",[2979,3161,3043],{"class":2996},[2979,3163,3046],{"class":2985},[2979,3165,3166],{"class":2992}," SqlConnection",[2979,3168,3015],{"class":2996},[2979,3170,3171],{"class":3021},"_connectionString",[2979,3173,3174],{"class":2996},");\n",[2979,3176,3178,3180,3182,3185,3188],{"class":2981,"line":3177},17,[2979,3179,3149],{"class":2985},[2979,3181,3159],{"class":3021},[2979,3183,3184],{"class":2996},".",[2979,3186,3187],{"class":3011},"OpenAsync",[2979,3189,3190],{"class":2996},"();\n",[2979,3192,3194],{"class":2981,"line":3193},18,[2979,3195,3063],{"emptyLinePlaceholder":3062},[2979,3197,3199,3201,3203,3205,3208,3210,3212,3215,3217,3220,3223,3226],{"class":2981,"line":3198},19,[2979,3200,3149],{"class":2985},[2979,3202,3153],{"class":3152},[2979,3204,3156],{"class":2985},[2979,3206,3207],{"class":3021}," command",[2979,3209,3043],{"class":2996},[2979,3211,3046],{"class":2985},[2979,3213,3214],{"class":2992}," SqlCommand",[2979,3216,3015],{"class":2996},[2979,3218,3219],{"class":3021},"sql",[2979,3221,3222],{"class":2996},", ",[2979,3224,3225],{"class":3021},"connection",[2979,3227,3174],{"class":2996},[2979,3229,3231,3234,3236,3239,3241,3244,3246,3249,3251,3254],{"class":2981,"line":3230},20,[2979,3232,3233],{"class":3021},"    command",[2979,3235,3184],{"class":2996},[2979,3237,3238],{"class":3021},"Parameters",[2979,3240,3184],{"class":2996},[2979,3242,3243],{"class":3011},"AddWithValue",[2979,3245,3015],{"class":2996},[2979,3247,3248],{"class":3080},"\"@customerId\"",[2979,3250,3222],{"class":2996},[2979,3252,3253],{"class":3021},"customerId",[2979,3255,3174],{"class":2996},[2979,3257,3259],{"class":2981,"line":3258},21,[2979,3260,3063],{"emptyLinePlaceholder":3062},[2979,3262,3264,3266,3268,3270,3273,3275,3278,3280,3282,3285],{"class":2981,"line":3263},22,[2979,3265,3149],{"class":2985},[2979,3267,3153],{"class":3152},[2979,3269,3156],{"class":2985},[2979,3271,3272],{"class":3021}," reader",[2979,3274,3043],{"class":2996},[2979,3276,3277],{"class":2985},"await",[2979,3279,3207],{"class":3021},[2979,3281,3184],{"class":2996},[2979,3283,3284],{"class":3011},"ExecuteReaderAsync",[2979,3286,3190],{"class":2996},[2979,3288,3290],{"class":2981,"line":3289},23,[2979,3291,3063],{"emptyLinePlaceholder":3062},[2979,3293,3295,3297,3300,3302,3304,3307,3309,3311,3313,3315],{"class":2981,"line":3294},24,[2979,3296,3037],{"class":2985},[2979,3298,3299],{"class":3021}," orderMap",[2979,3301,3043],{"class":2996},[2979,3303,3046],{"class":2985},[2979,3305,3306],{"class":2992}," Dictionary",[2979,3308,2997],{"class":2996},[2979,3310,3018],{"class":2985},[2979,3312,3222],{"class":2996},[2979,3314,3005],{"class":2992},[2979,3316,3056],{"class":2996},[2979,3318,3320],{"class":2981,"line":3319},25,[2979,3321,3063],{"emptyLinePlaceholder":3062},[2979,3323,3325,3328,3331,3333,3335,3337,3340],{"class":2981,"line":3324},26,[2979,3326,3327],{"class":3152},"    while",[2979,3329,3330],{"class":2996}," (",[2979,3332,3277],{"class":2985},[2979,3334,3272],{"class":3021},[2979,3336,3184],{"class":2996},[2979,3338,3339],{"class":3011},"ReadAsync",[2979,3341,3342],{"class":2996},"())\n",[2979,3344,3346],{"class":2981,"line":3345},27,[2979,3347,3348],{"class":2996},"    {\n",[2979,3350,3352,3355,3358,3360,3363,3365,3368,3370,3372,3374,3377,3379,3382],{"class":2981,"line":3351},28,[2979,3353,3354],{"class":2985},"        var",[2979,3356,3357],{"class":3021}," orderId",[2979,3359,3043],{"class":2996},[2979,3361,3362],{"class":3021},"reader",[2979,3364,3184],{"class":2996},[2979,3366,3367],{"class":3011},"GetInt32",[2979,3369,3015],{"class":2996},[2979,3371,3362],{"class":3021},[2979,3373,3184],{"class":2996},[2979,3375,3376],{"class":3011},"GetOrdinal",[2979,3378,3015],{"class":2996},[2979,3380,3381],{"class":3080},"\"Id\"",[2979,3383,3384],{"class":2996},"));\n",[2979,3386,3388],{"class":2981,"line":3387},29,[2979,3389,3063],{"emptyLinePlaceholder":3062},[2979,3391,3393,3396,3399,3402,3404,3407,3409,3412,3414,3417,3419,3422],{"class":2981,"line":3392},30,[2979,3394,3395],{"class":3152},"        if",[2979,3397,3398],{"class":2996}," (!",[2979,3400,3401],{"class":3021},"orderMap",[2979,3403,3184],{"class":2996},[2979,3405,3406],{"class":3011},"TryGetValue",[2979,3408,3015],{"class":2996},[2979,3410,3411],{"class":3021},"orderId",[2979,3413,3222],{"class":2996},[2979,3415,3416],{"class":2985},"out",[2979,3418,3156],{"class":2985},[2979,3420,3421],{"class":3021}," order",[2979,3423,3424],{"class":2996},"))\n",[2979,3426,3428],{"class":2981,"line":3427},31,[2979,3429,3430],{"class":2996},"        {\n",[2979,3432,3434,3437,3439,3441],{"class":2981,"line":3433},32,[2979,3435,3436],{"class":3021},"            order",[2979,3438,3043],{"class":2996},[2979,3440,3046],{"class":2985},[2979,3442,3443],{"class":2992}," OrderDto\n",[2979,3445,3447],{"class":2981,"line":3446},33,[2979,3448,3449],{"class":2996},"            {\n",[2979,3451,3453,3456,3459,3461],{"class":2981,"line":3452},34,[2979,3454,3455],{"class":3021},"                Id",[2979,3457,3458],{"class":2996},"        = ",[2979,3460,3411],{"class":3021},[2979,3462,3463],{"class":2996},",\n",[2979,3465,3467,3470,3472,3474,3476,3479,3481,3483,3485,3487,3489,3492],{"class":2981,"line":3466},35,[2979,3468,3469],{"class":3021},"                CreatedAt",[2979,3471,3043],{"class":2996},[2979,3473,3362],{"class":3021},[2979,3475,3184],{"class":2996},[2979,3477,3478],{"class":3011},"GetDateTime",[2979,3480,3015],{"class":2996},[2979,3482,3362],{"class":3021},[2979,3484,3184],{"class":2996},[2979,3486,3376],{"class":3011},[2979,3488,3015],{"class":2996},[2979,3490,3491],{"class":3080},"\"CreatedAt\"",[2979,3493,3494],{"class":2996},")),\n",[2979,3496,3498,3501,3504,3506,3508,3511,3513,3515,3517,3519,3521,3524],{"class":2981,"line":3497},36,[2979,3499,3500],{"class":3021},"                Total",[2979,3502,3503],{"class":2996},"     = ",[2979,3505,3362],{"class":3021},[2979,3507,3184],{"class":2996},[2979,3509,3510],{"class":3011},"GetDecimal",[2979,3512,3015],{"class":2996},[2979,3514,3362],{"class":3021},[2979,3516,3184],{"class":2996},[2979,3518,3376],{"class":3011},[2979,3520,3015],{"class":2996},[2979,3522,3523],{"class":3080},"\"TotalAmount\"",[2979,3525,3494],{"class":2996},[2979,3527,3529,3532,3535,3537,3539,3542,3544,3546,3548,3550,3552,3555],{"class":2981,"line":3528},37,[2979,3530,3531],{"class":3021},"                Status",[2979,3533,3534],{"class":2996},"    = ",[2979,3536,3362],{"class":3021},[2979,3538,3184],{"class":2996},[2979,3540,3541],{"class":3011},"GetString",[2979,3543,3015],{"class":2996},[2979,3545,3362],{"class":3021},[2979,3547,3184],{"class":2996},[2979,3549,3376],{"class":3011},[2979,3551,3015],{"class":2996},[2979,3553,3554],{"class":3080},"\"Status\"",[2979,3556,3494],{"class":2996},[2979,3558,3560,3563,3565,3567,3569,3571,3574],{"class":2981,"line":3559},38,[2979,3561,3562],{"class":3021},"                Items",[2979,3564,3503],{"class":2996},[2979,3566,3046],{"class":2985},[2979,3568,3049],{"class":2992},[2979,3570,2997],{"class":2996},[2979,3572,3573],{"class":2992},"OrderItemDto",[2979,3575,3576],{"class":2996},">()\n",[2979,3578,3580],{"class":2981,"line":3579},39,[2979,3581,3582],{"class":2996},"            };\n",[2979,3584,3586,3589,3592,3594,3597,3600],{"class":2981,"line":3585},40,[2979,3587,3588],{"class":3021},"            orderMap",[2979,3590,3591],{"class":2996},"[",[2979,3593,3411],{"class":3021},[2979,3595,3596],{"class":2996},"] = ",[2979,3598,3599],{"class":3021},"order",[2979,3601,3138],{"class":2996},[2979,3603,3605],{"class":2981,"line":3604},41,[2979,3606,3607],{"class":2996},"        }\n",[2979,3609,3611],{"class":2981,"line":3610},42,[2979,3612,3063],{"emptyLinePlaceholder":3062},[2979,3614,3616,3619,3621,3624,3626,3629,3631,3633],{"class":2981,"line":3615},43,[2979,3617,3618],{"class":3021},"        order",[2979,3620,3184],{"class":2996},[2979,3622,3623],{"class":3021},"Items",[2979,3625,3184],{"class":2996},[2979,3627,3628],{"class":3011},"Add",[2979,3630,3015],{"class":2996},[2979,3632,3046],{"class":2985},[2979,3634,3635],{"class":2992}," OrderItemDto\n",[2979,3637,3639],{"class":2981,"line":3638},44,[2979,3640,3430],{"class":2996},[2979,3642,3644,3647,3650,3652,3654,3656,3658,3660,3662,3664,3666,3669],{"class":2981,"line":3643},45,[2979,3645,3646],{"class":3021},"            Id",[2979,3648,3649],{"class":2996},"          = ",[2979,3651,3362],{"class":3021},[2979,3653,3184],{"class":2996},[2979,3655,3367],{"class":3011},[2979,3657,3015],{"class":2996},[2979,3659,3362],{"class":3021},[2979,3661,3184],{"class":2996},[2979,3663,3376],{"class":3011},[2979,3665,3015],{"class":2996},[2979,3667,3668],{"class":3080},"\"ItemId\"",[2979,3670,3494],{"class":2996},[2979,3672,3674,3677,3679,3681,3683,3685,3687,3689,3691,3693,3695,3698],{"class":2981,"line":3673},46,[2979,3675,3676],{"class":3021},"            Quantity",[2979,3678,3534],{"class":2996},[2979,3680,3362],{"class":3021},[2979,3682,3184],{"class":2996},[2979,3684,3367],{"class":3011},[2979,3686,3015],{"class":2996},[2979,3688,3362],{"class":3021},[2979,3690,3184],{"class":2996},[2979,3692,3376],{"class":3011},[2979,3694,3015],{"class":2996},[2979,3696,3697],{"class":3080},"\"Quantity\"",[2979,3699,3494],{"class":2996},[2979,3701,3703,3706,3709,3711,3713,3715,3717,3719,3721,3723,3725,3728],{"class":2981,"line":3702},47,[2979,3704,3705],{"class":3021},"            UnitPrice",[2979,3707,3708],{"class":2996},"   = ",[2979,3710,3362],{"class":3021},[2979,3712,3184],{"class":2996},[2979,3714,3510],{"class":3011},[2979,3716,3015],{"class":2996},[2979,3718,3362],{"class":3021},[2979,3720,3184],{"class":2996},[2979,3722,3376],{"class":3011},[2979,3724,3015],{"class":2996},[2979,3726,3727],{"class":3080},"\"UnitPrice\"",[2979,3729,3494],{"class":2996},[2979,3731,3733,3736,3738,3740,3742,3744,3746,3748,3750,3752,3754,3757],{"class":2981,"line":3732},48,[2979,3734,3735],{"class":3021},"            ProductId",[2979,3737,3708],{"class":2996},[2979,3739,3362],{"class":3021},[2979,3741,3184],{"class":2996},[2979,3743,3367],{"class":3011},[2979,3745,3015],{"class":2996},[2979,3747,3362],{"class":3021},[2979,3749,3184],{"class":2996},[2979,3751,3376],{"class":3011},[2979,3753,3015],{"class":2996},[2979,3755,3756],{"class":3080},"\"ProductId\"",[2979,3758,3494],{"class":2996},[2979,3760,3762,3765,3767,3769,3771,3773,3775,3777,3779,3781,3783,3786],{"class":2981,"line":3761},49,[2979,3763,3764],{"class":3021},"            ProductName",[2979,3766,3043],{"class":2996},[2979,3768,3362],{"class":3021},[2979,3770,3184],{"class":2996},[2979,3772,3541],{"class":3011},[2979,3774,3015],{"class":2996},[2979,3776,3362],{"class":3021},[2979,3778,3184],{"class":2996},[2979,3780,3376],{"class":3011},[2979,3782,3015],{"class":2996},[2979,3784,3785],{"class":3080},"\"ProductName\"",[2979,3787,3494],{"class":2996},[2979,3789,3791,3794,3797,3799,3801,3803,3805,3807,3809,3811,3813,3816],{"class":2981,"line":3790},50,[2979,3792,3793],{"class":3021},"            Sku",[2979,3795,3796],{"class":2996},"         = ",[2979,3798,3362],{"class":3021},[2979,3800,3184],{"class":2996},[2979,3802,3541],{"class":3011},[2979,3804,3015],{"class":2996},[2979,3806,3362],{"class":3021},[2979,3808,3184],{"class":2996},[2979,3810,3376],{"class":3011},[2979,3812,3015],{"class":2996},[2979,3814,3815],{"class":3080},"\"Sku\"",[2979,3817,3424],{"class":2996},[2979,3819,3821],{"class":2981,"line":3820},51,[2979,3822,3823],{"class":2996},"        });\n",[2979,3825,3827],{"class":2981,"line":3826},52,[2979,3828,3829],{"class":2996},"    }\n",[2979,3831,3833],{"class":2981,"line":3832},53,[2979,3834,3063],{"emptyLinePlaceholder":3062},[2979,3836,3838,3841,3843,3845,3848,3850,3853],{"class":2981,"line":3837},54,[2979,3839,3840],{"class":3152},"    return",[2979,3842,3299],{"class":3021},[2979,3844,3184],{"class":2996},[2979,3846,3847],{"class":3021},"Values",[2979,3849,3184],{"class":2996},[2979,3851,3852],{"class":3011},"ToList",[2979,3854,3190],{"class":2996},[2979,3856,3858],{"class":2981,"line":3857},55,[2979,3859,3860],{"class":2996},"}\n",[2964,3862,3863,3864,3867,3868,3872],{},"Цей код правильний. Він працює. Але подивіться, скільки тут роботи, яка не має жодного відношення до бізнес-логіки: відкрити connection, написати SQL-рядок вручну, передати параметри, прочитати рядки через ",[2976,3865,3866],{},"reader.GetInt32()",", вручну зібрати об'єктний граф із плоского набору рядків. І це лише ",[3869,3870,3871],"strong",{},"один"," запит.",[2964,3874,3875],{},"Тепер уявіть, що таких запитів у проєкті сотні. Кожного разу — одне й те саме: з'єднання, параметри, ручне маппінг. А якщо поле в базі перейменовано — доведеться переписати всі рядки-рядки в кожному методі.",[2964,3877,3878,3879,3184],{},"Саме з цієї проблеми виросла концепція ",[3869,3880,3881],{},"Object-Relational Mapping",[3883,3884],"hr",{},[2959,3886,3888],{"id":3887},"impedance-mismatch-корінь-усіх-бід","Impedance Mismatch: корінь усіх бід",[2964,3890,3891,3892,3895,3896,3899],{},"У 1990-х роках, коли об'єктно-орієнтоване програмування стало мейнстрімом, а реляційні бази даних вже міцно стояли в індустрії, розробники зіткнулися із фундаментальним протиріччям. У програмуванні ми мислимо ",[3869,3893,3894],{},"об'єктами"," — сутностями зі стан, поведінкою і зв'язками. Реляційні бази даних зберігають дані у вигляді ",[3869,3897,3898],{},"таблиць і рядків"," — плоских, нормалізованих структур без поведінки.",[2964,3901,3902,3903,3906,3907,3911],{},"Це протиріччя отримало назву ",[3869,3904,3905],{},"Object-Relational Impedance Mismatch"," — невідповідності між об'єктною та реляційною моделями даних. Термін популяризував Мартін Фаулер у своїй фундаментальній книзі ",[3908,3909,3910],"em",{},"«Patterns of Enterprise Application Architecture»"," (2002).",[3913,3914,3915,3918],"note",{},[3869,3916,3917],{},"Impedance"," (імпеданс) — термін запозичений з електротехніки, де він описує опір змінному струму. В контексті програмування він метафорично описує «тертя» між двома принципово різними парадигмами, що не можуть бути з'єднані без адаптера.",[2964,3920,3921],{},"Ця невідповідність проявляється у п'яти конкретних проблемах, кожна з яких щодня нагадує про себе в коді без ORM:",[3923,3924,3926],"h3",{"id":3925},"проблема-1-типи-даних","Проблема 1: Типи даних",[2964,3928,3929,3930,3222,3933,3222,3936,3222,3939,3942,3943,3222,3946,3222,3949,3222,3952,3955,3956,3958,3959,3961,3962,3965,3966,3968,3969,3184],{},"У C# є ",[2976,3931,3932],{},"DateTime",[2976,3934,3935],{},"Guid",[2976,3937,3938],{},"decimal",[2976,3940,3941],{},"enum",", nullable types, value types. У SQL — ",[2976,3944,3945],{},"DATETIME",[2976,3947,3948],{},"UNIQUEIDENTIFIER",[2976,3950,3951],{},"NUMERIC(18,2)",[2976,3953,3954],{},"INT",". Перетворення між ними не завжди тривіальне: SQL Server зберігає ",[2976,3957,3932],{}," з точністю до мілісекунди, але може відрізатися від ",[2976,3960,3932],{}," у CLR через округлення. PostgreSQL має окремий тип ",[2976,3963,3964],{},"timestamptz"," з інформацією про часовий пояс. Enum у C# зберігається як ціле число, але у базі може бути і ",[2976,3967,3954],{},", і ",[2976,3970,3971],{},"VARCHAR",[3923,3973,3975],{"id":3974},"проблема-2-ідентичність","Проблема 2: Ідентичність",[2964,3977,3978],{},"У C# ідентичність об'єкта визначається за посиланням (reference equality): два різних об'єкти з однаковими даними — це два різних об'єкти. У реляційній базі ідентичність визначається первинним ключем: два рядки з однаковим PK — це один і той самий рядок. Якщо ви двічі запитаєте один рядок з БД, ви отримаєте два різних C#-об'єкти, і це може призвести до неочікуваної поведінки при порівнянні.",[3923,3980,3982],{"id":3981},"проблема-3-звязки","Проблема 3: Зв'язки",[2964,3984,3985,3986,3222,3989,3992,3993,3996],{},"У C# зв'язки виражаються через навігаційні властивості: ",[2976,3987,3988],{},"Order.Customer",[2976,3990,3991],{},"Customer.Orders",". Це двосторонні посилання. У SQL зв'язки виражаються через зовнішні ключі — числові значення в одній таблиці, що вказують на рядок в іншій. JOIN у SQL є явним і виконується при запиті. У C# доступ до ",[2976,3994,3995],{},"order.Customer"," виглядає як просте звернення до властивості.",[3923,3998,4000],{"id":3999},"проблема-4-навігація-n1-проблема","Проблема 4: Навігація (N+1 проблема)",[2964,4002,4003,4004,4007],{},"Якщо у вас є список з 100 замовлень і ви хочете дізнатися ім'я клієнта для кожного, в SQL ви зробите один JOIN. В об'єктній моделі без ORM ви можете ненавмисно написати цикл, що робить 100 окремих запитів до бази — по одному на кожне замовлення. Це класична ",[3869,4005,4006],{},"N+1 проблема",", яка руйнує продуктивність.",[3923,4009,4011],{"id":4010},"проблема-5-гранулярність","Проблема 5: Гранулярність",[2964,4013,4014,4015,4018,4019,3222,4022,3222,4025,4028,4029,4032,4033,3222,4035,3222,4037,4039,4040,4042],{},"В ООП є смисл виділити дрібні класи з відповідальністю — наприклад, окремий клас ",[2976,4016,4017],{},"Address"," з полями ",[2976,4020,4021],{},"Street",[2976,4023,4024],{},"City",[2976,4026,4027],{},"ZipCode",". Але у базі це зазвичай зберігається як набір окремих стовпців у таблиці ",[2976,4030,4031],{},"Customers",": ",[2976,4034,4021],{},[2976,4036,4024],{},[2976,4038,4027],{},". Тобто одна C# властивість (",[2976,4041,4017],{},") відповідає декільком стовпцям БД.",[4044,4045,4046],"tip",{},"Усі п'ять проблем — це не баги, а фундаментальні архітектурні розбіжності між двома технологіями, кожна з яких за окремим призначенням. ORM є адаптером між ними — але, як і будь-який адаптер, він додає шар абстракції зі своїми компромісами.",[3883,4048],{},[2959,4050,4052],{"id":4051},"визначення-що-таке-orm","Визначення: що таке ORM?",[2964,4054,4055,4058],{},[3869,4056,4057],{},"Object-Relational Mapping (ORM)"," — це патерн і технологія, що автоматизує перетворення між об'єктною моделлю застосунку та реляційною моделлю бази даних, зберігаючи при цьому семантику обох.",[2964,4060,4061,4062,4065,4066,4069],{},"Мартін Фаулер у ",[3908,4063,4064],{},"«P of EAA»"," описує ORM як підклас патерну ",[3869,4067,4068],{},"Data Mapper"," — об'єкта, що відповідає за переміщення даних між об'єктами та базою даних, зберігаючи їх незалежними один від одного та від mapper'а.",[2964,4071,4072,4073,4076,4077,4080],{},"Ключове слово тут — ",[3869,4074,4075],{},"незалежними",". Це означає, що ваш клас ",[2976,4078,4079],{},"Order"," не повинен знати, як він зберігається в базі. Він є чистою C#-сутністю з властивостями і поведінкою. ORM-фреймворк відповідає за те, щоб «перекласти» цю сутність у SQL при збереженні і «перекласти назад» при читанні.",[2964,4082,4083],{},"Розберемо, як виглядає та сама операція з ORM (Entity Framework Core):",[2968,4085,4087],{"className":2970,"code":4086,"filename":2972,"language":2973,"meta":2974,"style":2974},"public async Task\u003CList\u003COrder>> GetActiveOrdersAsync(int customerId)\n{\n    return await _context.Orders\n        .Where(o => o.CustomerId == customerId && o.Status == OrderStatus.Active)\n        .Include(o => o.Items)\n            .ThenInclude(item => item.Product)\n        .OrderByDescending(o => o.CreatedAt)\n        .ToListAsync();\n}\n",[2976,4088,4089,4117,4121,4136,4186,4207,4231,4253,4262],{"__ignoreMap":2974},[2979,4090,4091,4093,4095,4097,4099,4101,4103,4105,4107,4109,4111,4113,4115],{"class":2981,"line":2982},[2979,4092,2986],{"class":2985},[2979,4094,2989],{"class":2985},[2979,4096,2993],{"class":2992},[2979,4098,2997],{"class":2996},[2979,4100,3000],{"class":2992},[2979,4102,2997],{"class":2996},[2979,4104,4079],{"class":2992},[2979,4106,3008],{"class":2996},[2979,4108,3012],{"class":3011},[2979,4110,3015],{"class":2996},[2979,4112,3018],{"class":2985},[2979,4114,3022],{"class":3021},[2979,4116,3025],{"class":2996},[2979,4118,4119],{"class":2981,"line":3028},[2979,4120,3031],{"class":2996},[2979,4122,4123,4125,4128,4131,4133],{"class":2981,"line":3034},[2979,4124,3840],{"class":3152},[2979,4126,4127],{"class":2985}," await",[2979,4129,4130],{"class":3021}," _context",[2979,4132,3184],{"class":2996},[2979,4134,4135],{"class":3021},"Orders\n",[2979,4137,4138,4141,4144,4146,4149,4152,4154,4156,4159,4162,4164,4167,4169,4171,4174,4176,4179,4181,4184],{"class":2981,"line":3059},[2979,4139,4140],{"class":2996},"        .",[2979,4142,4143],{"class":3011},"Where",[2979,4145,3015],{"class":2996},[2979,4147,4148],{"class":3021},"o",[2979,4150,4151],{"class":2996}," => ",[2979,4153,4148],{"class":3021},[2979,4155,3184],{"class":2996},[2979,4157,4158],{"class":3021},"CustomerId",[2979,4160,4161],{"class":2996}," == ",[2979,4163,3253],{"class":3021},[2979,4165,4166],{"class":2996}," && ",[2979,4168,4148],{"class":3021},[2979,4170,3184],{"class":2996},[2979,4172,4173],{"class":3021},"Status",[2979,4175,4161],{"class":2996},[2979,4177,4178],{"class":3021},"OrderStatus",[2979,4180,3184],{"class":2996},[2979,4182,4183],{"class":3021},"Active",[2979,4185,3025],{"class":2996},[2979,4187,4188,4190,4193,4195,4197,4199,4201,4203,4205],{"class":2981,"line":3066},[2979,4189,4140],{"class":2996},[2979,4191,4192],{"class":3011},"Include",[2979,4194,3015],{"class":2996},[2979,4196,4148],{"class":3021},[2979,4198,4151],{"class":2996},[2979,4200,4148],{"class":3021},[2979,4202,3184],{"class":2996},[2979,4204,3623],{"class":3021},[2979,4206,3025],{"class":2996},[2979,4208,4209,4212,4215,4217,4220,4222,4224,4226,4229],{"class":2981,"line":3084},[2979,4210,4211],{"class":2996},"            .",[2979,4213,4214],{"class":3011},"ThenInclude",[2979,4216,3015],{"class":2996},[2979,4218,4219],{"class":3021},"item",[2979,4221,4151],{"class":2996},[2979,4223,4219],{"class":3021},[2979,4225,3184],{"class":2996},[2979,4227,4228],{"class":3021},"Product",[2979,4230,3025],{"class":2996},[2979,4232,4233,4235,4238,4240,4242,4244,4246,4248,4251],{"class":2981,"line":3090},[2979,4234,4140],{"class":2996},[2979,4236,4237],{"class":3011},"OrderByDescending",[2979,4239,3015],{"class":2996},[2979,4241,4148],{"class":3021},[2979,4243,4151],{"class":2996},[2979,4245,4148],{"class":3021},[2979,4247,3184],{"class":2996},[2979,4249,4250],{"class":3021},"CreatedAt",[2979,4252,3025],{"class":2996},[2979,4254,4255,4257,4260],{"class":2981,"line":3096},[2979,4256,4140],{"class":2996},[2979,4258,4259],{"class":3011},"ToListAsync",[2979,4261,3190],{"class":2996},[2979,4263,4264],{"class":2981,"line":3102},[2979,4265,3860],{"class":2996},[2964,4267,4268,4269,3184],{},"Це — той самий запит. Той самий JOIN. Той самий фільтр і сортування. Але тепер ми працюємо з об'єктами C# безпосередньо. ORM автоматично транслює LINQ-вираз у SQL, виконує запит і матеріалізує результат у повноцінний граф об'єктів ",[2976,4270,4271],{},"Order → Items → Product",[3883,4273],{},[2959,4275,4277],{"id":4276},"еволюція-доступу-до-даних-у-net","Еволюція доступу до даних у .NET",[2964,4279,4280],{},"Щоб зрозуміти, чому і як з'явились ORM-фреймворки, варто простежити хронологію:",[4282,4283,4284],"mermaid",{},[2968,4285,4288],{"className":4286,"code":4287,"language":4282,"meta":2974,"style":2974},"language-mermaid shiki shiki-themes light-plus dark-plus dark-plus","timeline\n    title Еволюція доступу до даних у .NET\n    2002 : ADO.NET\n         : Ручний SQL та DataReader\n         : Повний контроль, максимум коду\n    2004 : NHibernate 1.0\n         : Перший ORM для .NET\n         : Порт Hibernate з Java\n    2008 : LINQ to SQL\n         : Вбудований ORM від Microsoft\n         : Тільки SQL Server, обмежений\n    2008 : Entity Framework 1.0\n         : Повноцінний ORM від Microsoft\n         : XML-конфігурація, складний\n    2012 : EF 5 / Code First\n         : Революція — модель через код\n         : Без XML, тільки C#\n    2016 : EF Core 1.0\n         : Переписано з нуля\n         : Кросплатформний, модульний\n    2019 : EF Core 3.1\n         : Зрілий LTS-реліз\n         : Стабільна основа\n    2023 : EF Core 8 / 9\n         : JSON Columns, Complex Types\n         : Сучасний EF Core\n",[2976,4289,4290,4295,4300,4305,4310,4315,4320,4325,4330,4335,4340,4345,4350,4355,4360,4365,4370,4375,4380,4385,4390,4395,4400,4405,4410,4415],{"__ignoreMap":2974},[2979,4291,4292],{"class":2981,"line":2982},[2979,4293,4294],{},"timeline\n",[2979,4296,4297],{"class":2981,"line":3028},[2979,4298,4299],{},"    title Еволюція доступу до даних у .NET\n",[2979,4301,4302],{"class":2981,"line":3034},[2979,4303,4304],{},"    2002 : ADO.NET\n",[2979,4306,4307],{"class":2981,"line":3059},[2979,4308,4309],{},"         : Ручний SQL та DataReader\n",[2979,4311,4312],{"class":2981,"line":3066},[2979,4313,4314],{},"         : Повний контроль, максимум коду\n",[2979,4316,4317],{"class":2981,"line":3084},[2979,4318,4319],{},"    2004 : NHibernate 1.0\n",[2979,4321,4322],{"class":2981,"line":3090},[2979,4323,4324],{},"         : Перший ORM для .NET\n",[2979,4326,4327],{"class":2981,"line":3096},[2979,4328,4329],{},"         : Порт Hibernate з Java\n",[2979,4331,4332],{"class":2981,"line":3102},[2979,4333,4334],{},"    2008 : LINQ to SQL\n",[2979,4336,4337],{"class":2981,"line":3108},[2979,4338,4339],{},"         : Вбудований ORM від Microsoft\n",[2979,4341,4342],{"class":2981,"line":3114},[2979,4343,4344],{},"         : Тільки SQL Server, обмежений\n",[2979,4346,4347],{"class":2981,"line":3120},[2979,4348,4349],{},"    2008 : Entity Framework 1.0\n",[2979,4351,4352],{"class":2981,"line":3126},[2979,4353,4354],{},"         : Повноцінний ORM від Microsoft\n",[2979,4356,4357],{"class":2981,"line":3132},[2979,4358,4359],{},"         : XML-конфігурація, складний\n",[2979,4361,4362],{"class":2981,"line":3141},[2979,4363,4364],{},"    2012 : EF 5 / Code First\n",[2979,4366,4367],{"class":2981,"line":3146},[2979,4368,4369],{},"         : Революція — модель через код\n",[2979,4371,4372],{"class":2981,"line":3177},[2979,4373,4374],{},"         : Без XML, тільки C#\n",[2979,4376,4377],{"class":2981,"line":3193},[2979,4378,4379],{},"    2016 : EF Core 1.0\n",[2979,4381,4382],{"class":2981,"line":3198},[2979,4383,4384],{},"         : Переписано з нуля\n",[2979,4386,4387],{"class":2981,"line":3230},[2979,4388,4389],{},"         : Кросплатформний, модульний\n",[2979,4391,4392],{"class":2981,"line":3258},[2979,4393,4394],{},"    2019 : EF Core 3.1\n",[2979,4396,4397],{"class":2981,"line":3263},[2979,4398,4399],{},"         : Зрілий LTS-реліз\n",[2979,4401,4402],{"class":2981,"line":3289},[2979,4403,4404],{},"         : Стабільна основа\n",[2979,4406,4407],{"class":2981,"line":3294},[2979,4408,4409],{},"    2023 : EF Core 8 / 9\n",[2979,4411,4412],{"class":2981,"line":3319},[2979,4413,4414],{},"         : JSON Columns, Complex Types\n",[2979,4416,4417],{"class":2981,"line":3324},[2979,4418,4419],{},"         : Сучасний EF Core\n",[2964,4421,4422,4425],{},[3869,4423,4424],{},"ADO.NET"," (2002) — фундамент, який ви вже знаєте. Він дає максимальний контроль над кожним SQL-запитом. Але це означає максимум ручної роботи: з'єднання, команди, reader, маппінг.",[2964,4427,4428,4431],{},[3869,4429,4430],{},"LINQ to SQL"," (2008) — перший ORM від Microsoft, але обмежений тільки SQL Server і з часом фактично припинив розвиток.",[2964,4433,4434,4437],{},[3869,4435,4436],{},"Entity Framework"," (2008–2012) — початкові версії мали репутацію «важкого» фреймворку з XML-конфігурацією і незрілим генератором SQL. Версія з Code First (2012) стала переломним моментом.",[2964,4439,4440,4443],{},[3869,4441,4442],{},"EF Core"," (2016–досі) — повна переробка з нуля. Кросплатформний (Linux, macOS), модульний, з підтримкою безлічі провайдерів БД. Саме EF Core є предметом цього курсу.",[3883,4445],{},[2959,4447,4449],{"id":4448},"патерни-доступу-до-даних-active-record-vs-data-mapper","Патерни доступу до даних: Active Record vs Data Mapper",[2964,4451,4452],{},"Перш ніж говорити про конкретні інструменти, важливо розуміти два фундаментальних патерни — вони визначають архітектурний підхід ORM-фреймворку.",[4454,4455,4456,4556],"card-group",{},[4457,4458,4461,4478,4543],"card",{"icon":4459,"title":4460},"i-lucide-circle-user","Active Record",[2964,4462,4463,4464,4467,4468,3222,4471,3222,4474,4477],{},"Сутність ",[3869,4465,4466],{},"сама"," відповідає за своє збереження. Методи ",[2976,4469,4470],{},"Save()",[2976,4472,4473],{},"Delete()",[2976,4475,4476],{},"Find()"," знаходяться в самому класі моделі.",[2968,4479,4481],{"className":2970,"code":4480,"language":2973,"meta":2974,"style":2974},"// Rails-стиль Active Record\nvar order = Order.Find(42);\norder.Status = \"Completed\";\norder.Save(); // зберігає себе сам\n",[2976,4482,4483,4489,4513,4528],{"__ignoreMap":2974},[2979,4484,4485],{"class":2981,"line":2982},[2979,4486,4488],{"class":4487},"spJ8K","// Rails-стиль Active Record\n",[2979,4490,4491,4494,4496,4498,4500,4502,4505,4507,4511],{"class":2981,"line":3028},[2979,4492,4493],{"class":2985},"var",[2979,4495,3421],{"class":3021},[2979,4497,3043],{"class":2996},[2979,4499,4079],{"class":3021},[2979,4501,3184],{"class":2996},[2979,4503,4504],{"class":3011},"Find",[2979,4506,3015],{"class":2996},[2979,4508,4510],{"class":4509},"sJj4R","42",[2979,4512,3174],{"class":2996},[2979,4514,4515,4517,4519,4521,4523,4526],{"class":2981,"line":3034},[2979,4516,3599],{"class":3021},[2979,4518,3184],{"class":2996},[2979,4520,4173],{"class":3021},[2979,4522,3043],{"class":2996},[2979,4524,4525],{"class":3080},"\"Completed\"",[2979,4527,3138],{"class":2996},[2979,4529,4530,4532,4534,4537,4540],{"class":2981,"line":3059},[2979,4531,3599],{"class":3021},[2979,4533,3184],{"class":2996},[2979,4535,4536],{"class":3011},"Save",[2979,4538,4539],{"class":2996},"(); ",[2979,4541,4542],{"class":4487},"// зберігає себе сам\n",[2964,4544,4545,4548,4549,4552,4555],{},[3869,4546,4547],{},"Плюси:"," Простота, менше коду, інтуїтивно",[4550,4551],"br",{},[3869,4553,4554],{},"Мінуси:"," Порушення SRP, складно тестувати, сутність залежить від БД",[4457,4557,4559,4565,4642],{"icon":4558,"title":4068},"i-lucide-git-branch",[2964,4560,4463,4561,4564],{},[3869,4562,4563],{},"не знає"," про базу. Окремий Mapper відповідає за переміщення даних між об'єктами та БД.",[2968,4566,4568],{"className":2970,"code":4567,"language":2973,"meta":2974,"style":2974},"// Data Mapper стиль\nvar order = await _context.Orders.FindAsync(42); // mapper читає\norder.Status = OrderStatus.Completed;\nawait _context.SaveChangesAsync(); // mapper зберігає\n",[2976,4569,4570,4575,4607,4626],{"__ignoreMap":2974},[2979,4571,4572],{"class":2981,"line":2982},[2979,4573,4574],{"class":4487},"// Data Mapper стиль\n",[2979,4576,4577,4579,4581,4583,4585,4587,4589,4592,4594,4597,4599,4601,4604],{"class":2981,"line":3028},[2979,4578,4493],{"class":2985},[2979,4580,3421],{"class":3021},[2979,4582,3043],{"class":2996},[2979,4584,3277],{"class":2985},[2979,4586,4130],{"class":3021},[2979,4588,3184],{"class":2996},[2979,4590,4591],{"class":3021},"Orders",[2979,4593,3184],{"class":2996},[2979,4595,4596],{"class":3011},"FindAsync",[2979,4598,3015],{"class":2996},[2979,4600,4510],{"class":4509},[2979,4602,4603],{"class":2996},"); ",[2979,4605,4606],{"class":4487},"// mapper читає\n",[2979,4608,4609,4611,4613,4615,4617,4619,4621,4624],{"class":2981,"line":3034},[2979,4610,3599],{"class":3021},[2979,4612,3184],{"class":2996},[2979,4614,4173],{"class":3021},[2979,4616,3043],{"class":2996},[2979,4618,4178],{"class":3021},[2979,4620,3184],{"class":2996},[2979,4622,4623],{"class":3021},"Completed",[2979,4625,3138],{"class":2996},[2979,4627,4628,4630,4632,4634,4637,4639],{"class":2981,"line":3059},[2979,4629,3277],{"class":2985},[2979,4631,4130],{"class":3021},[2979,4633,3184],{"class":2996},[2979,4635,4636],{"class":3011},"SaveChangesAsync",[2979,4638,4539],{"class":2996},[2979,4640,4641],{"class":4487},"// mapper зберігає\n",[2964,4643,4644,4646,4647,4649,4651],{},[3869,4645,4547],{}," Чиста модель, легко тестувати, гнучкість",[4550,4648],{},[3869,4650,4554],{}," Більше коду, складніше для маленьких проєктів",[2964,4653,4654,4657,4658,4661,4662,3222,4664,3222,4666,4669],{},[3869,4655,4656],{},"Entity Framework Core реалізує патерн Data Mapper."," ",[2976,4659,4660],{},"DbContext"," — це і є той самий mapper, який читає і зберігає ваші чисті POCO-класи (Plain Old CLR Objects). Самі класи ",[2976,4663,4079],{},[2976,4665,4228],{},[2976,4667,4668],{},"Customer"," нічого не знають про базу даних — вони є чистими C#-об'єктами.",[2964,4671,4672,4673,4676],{},"Це критично важливо для ",[3869,4674,4675],{},"тестування",": ваші сервіси та доменні класи можна тестувати без жодної реальної бази даних.",[3883,4678],{},[2959,4680,4682],{"id":4681},"ландшафт-orm-у-net-що-обирати","Ландшафт ORM у .NET: що обирати?",[2964,4684,4685],{},"Сьогодні в екосистемі .NET є кілька зрілих варіантів для доступу до даних. Розберемо кожен:",[3923,4687,4689],{"id":4688},"entity-framework-core","Entity Framework Core",[2964,4691,4692],{},"Офіційний ORM від Microsoft, частина .NET екосистеми. Підтримує Code First, Database First, міграції, LINQ-запити, зміну відслідковування (change tracking).",[2964,4694,4695,4698],{},[3869,4696,4697],{},"Підходить для:"," більшості корпоративних застосунків, CRUD-інтенсивних проєктів, команд зі стандартними вимогами.",[3923,4700,4702],{"id":4701},"dapper","Dapper",[2964,4704,4705,4706,4709],{},"Мікро-ORM, написаний командою Stack Overflow. Фактично є extension methods для ",[2976,4707,4708],{},"IDbConnection",", що дозволяє зручно виконати SQL і отримати результат як C#-об'єкти.",[2968,4711,4713],{"className":2970,"code":4712,"filename":2972,"language":2973,"meta":2974,"style":2974},"// Dapper: все ще SQL, але маппінг автоматичний\nvar orders = await connection.QueryAsync\u003COrder>(\n    \"SELECT * FROM Orders WHERE CustomerId = @id AND Status = 'Active'\",\n    new { id = customerId }\n);\n",[2976,4714,4715,4720,4744,4751,4769],{"__ignoreMap":2974},[2979,4716,4717],{"class":2981,"line":2982},[2979,4718,4719],{"class":4487},"// Dapper: все ще SQL, але маппінг автоматичний\n",[2979,4721,4722,4724,4726,4728,4730,4732,4734,4737,4739,4741],{"class":2981,"line":3028},[2979,4723,4493],{"class":2985},[2979,4725,3040],{"class":3021},[2979,4727,3043],{"class":2996},[2979,4729,3277],{"class":2985},[2979,4731,3159],{"class":3021},[2979,4733,3184],{"class":2996},[2979,4735,4736],{"class":3011},"QueryAsync",[2979,4738,2997],{"class":2996},[2979,4740,4079],{"class":2992},[2979,4742,4743],{"class":2996},">(\n",[2979,4745,4746,4749],{"class":2981,"line":3034},[2979,4747,4748],{"class":3080},"    \"SELECT * FROM Orders WHERE CustomerId = @id AND Status = 'Active'\"",[2979,4750,3463],{"class":2996},[2979,4752,4753,4756,4759,4762,4764,4766],{"class":2981,"line":3059},[2979,4754,4755],{"class":2985},"    new",[2979,4757,4758],{"class":2996}," { ",[2979,4760,4761],{"class":3021},"id",[2979,4763,3043],{"class":2996},[2979,4765,3253],{"class":3021},[2979,4767,4768],{"class":2996}," }\n",[2979,4770,4771],{"class":2981,"line":3066},[2979,4772,3174],{"class":2996},[2964,4774,4775,4777],{},[3869,4776,4697],{}," high-performance сценаріїв, коли потрібен повний контроль над SQL, legacy-бази зі складною схемою, аналітичні запити.",[3923,4779,4781],{"id":4780},"nhibernate","NHibernate",[2964,4783,4784],{},"Зрілий, дуже функціональний ORM — порт Hibernate з Java. Має більший feature set, ніж EF Core (наприклад, second-level cache, більш гнучке маппінгу). Але значно складніший у налаштуванні.",[2964,4786,4787,4789],{},[3869,4788,4697],{}," складних доменних моделей (DDD), коли потрібні можливості, яких немає в EF Core.",[3923,4791,4793],{"id":4792},"linq-to-db","LINQ to DB",[2964,4795,4796],{},"Lightweight ORM з детальним контролем над SQL та відмінною підтримкою різних провайдерів.",[3883,4798],{},[2959,4800,4802],{"id":4801},"ef-core-vs-dapper-детальне-порівняння","EF Core vs Dapper: детальне порівняння",[2964,4804,4805,4806,4809],{},"Це найчастіше питання в .NET-спільноті. Правильна відповідь: ",[3869,4807,4808],{},"обидва можна використовувати в одному проєкті"," — для різних задач.",[4811,4812,4813,5044,5068,5171],"tabs",{},[4814,4815,4817,4822,4960,4963,4968,5041],"tabs-item",{"label":4816},"Developer Experience",[2964,4818,4819,4821],{},[3869,4820,4442],{}," — ви пишете C# LINQ, фреймворк генерує SQL:",[2968,4823,4825],{"className":2970,"code":4824,"language":2973,"meta":2974,"style":2974},"var expensive = await _context.Products\n    .Where(p => p.Price > 1000 && p.Category == \"Electronics\")\n    .OrderBy(p => p.Name)\n    .Select(p => new { p.Id, p.Name, p.Price })\n    .ToListAsync();\n",[2976,4826,4827,4845,4887,4909,4952],{"__ignoreMap":2974},[2979,4828,4829,4831,4834,4836,4838,4840,4842],{"class":2981,"line":2982},[2979,4830,4493],{"class":2985},[2979,4832,4833],{"class":3021}," expensive",[2979,4835,3043],{"class":2996},[2979,4837,3277],{"class":2985},[2979,4839,4130],{"class":3021},[2979,4841,3184],{"class":2996},[2979,4843,4844],{"class":3021},"Products\n",[2979,4846,4847,4850,4852,4854,4856,4858,4860,4862,4865,4868,4871,4873,4875,4877,4880,4882,4885],{"class":2981,"line":3028},[2979,4848,4849],{"class":2996},"    .",[2979,4851,4143],{"class":3011},[2979,4853,3015],{"class":2996},[2979,4855,2964],{"class":3021},[2979,4857,4151],{"class":2996},[2979,4859,2964],{"class":3021},[2979,4861,3184],{"class":2996},[2979,4863,4864],{"class":3021},"Price",[2979,4866,4867],{"class":2996}," > ",[2979,4869,4870],{"class":4509},"1000",[2979,4872,4166],{"class":2996},[2979,4874,2964],{"class":3021},[2979,4876,3184],{"class":2996},[2979,4878,4879],{"class":3021},"Category",[2979,4881,4161],{"class":2996},[2979,4883,4884],{"class":3080},"\"Electronics\"",[2979,4886,3025],{"class":2996},[2979,4888,4889,4891,4894,4896,4898,4900,4902,4904,4907],{"class":2981,"line":3034},[2979,4890,4849],{"class":2996},[2979,4892,4893],{"class":3011},"OrderBy",[2979,4895,3015],{"class":2996},[2979,4897,2964],{"class":3021},[2979,4899,4151],{"class":2996},[2979,4901,2964],{"class":3021},[2979,4903,3184],{"class":2996},[2979,4905,4906],{"class":3021},"Name",[2979,4908,3025],{"class":2996},[2979,4910,4911,4913,4916,4918,4920,4922,4924,4926,4928,4930,4933,4935,4937,4939,4941,4943,4945,4947,4949],{"class":2981,"line":3059},[2979,4912,4849],{"class":2996},[2979,4914,4915],{"class":3011},"Select",[2979,4917,3015],{"class":2996},[2979,4919,2964],{"class":3021},[2979,4921,4151],{"class":2996},[2979,4923,3046],{"class":2985},[2979,4925,4758],{"class":2996},[2979,4927,2964],{"class":3021},[2979,4929,3184],{"class":2996},[2979,4931,4932],{"class":3021},"Id",[2979,4934,3222],{"class":2996},[2979,4936,2964],{"class":3021},[2979,4938,3184],{"class":2996},[2979,4940,4906],{"class":3021},[2979,4942,3222],{"class":2996},[2979,4944,2964],{"class":3021},[2979,4946,3184],{"class":2996},[2979,4948,4864],{"class":3021},[2979,4950,4951],{"class":2996}," })\n",[2979,4953,4954,4956,4958],{"class":2981,"line":3066},[2979,4955,4849],{"class":2996},[2979,4957,4259],{"class":3011},[2979,4959,3190],{"class":2996},[2964,4961,4962],{},"Немає SQL-рядків. Компілятор перевіряє синтаксис. Рефакторинг безпечний.",[2964,4964,4965,4967],{},[3869,4966,4702],{}," — ви пишете SQL, отримуєте об'єкти:",[2968,4969,4971],{"className":2970,"code":4970,"language":2973,"meta":2974,"style":2974},"var expensive = await connection.QueryAsync\u003CProductDto>(\n    @\"SELECT Id, Name, Price FROM Products\n      WHERE Price > @minPrice AND Category = @category\n      ORDER BY Name\",\n    new { minPrice = 1000, category = \"Electronics\" }\n);\n",[2976,4972,4973,4996,5001,5006,5013,5037],{"__ignoreMap":2974},[2979,4974,4975,4977,4979,4981,4983,4985,4987,4989,4991,4994],{"class":2981,"line":2982},[2979,4976,4493],{"class":2985},[2979,4978,4833],{"class":3021},[2979,4980,3043],{"class":2996},[2979,4982,3277],{"class":2985},[2979,4984,3159],{"class":3021},[2979,4986,3184],{"class":2996},[2979,4988,4736],{"class":3011},[2979,4990,2997],{"class":2996},[2979,4992,4993],{"class":2992},"ProductDto",[2979,4995,4743],{"class":2996},[2979,4997,4998],{"class":2981,"line":3028},[2979,4999,5000],{"class":3080},"    @\"SELECT Id, Name, Price FROM Products\n",[2979,5002,5003],{"class":2981,"line":3034},[2979,5004,5005],{"class":3080},"      WHERE Price > @minPrice AND Category = @category\n",[2979,5007,5008,5011],{"class":2981,"line":3059},[2979,5009,5010],{"class":3080},"      ORDER BY Name\"",[2979,5012,3463],{"class":2996},[2979,5014,5015,5017,5019,5022,5024,5026,5028,5031,5033,5035],{"class":2981,"line":3066},[2979,5016,4755],{"class":2985},[2979,5018,4758],{"class":2996},[2979,5020,5021],{"class":3021},"minPrice",[2979,5023,3043],{"class":2996},[2979,5025,4870],{"class":4509},[2979,5027,3222],{"class":2996},[2979,5029,5030],{"class":3021},"category",[2979,5032,3043],{"class":2996},[2979,5034,4884],{"class":3080},[2979,5036,4768],{"class":2996},[2979,5038,5039],{"class":2981,"line":3084},[2979,5040,3174],{"class":2996},[2964,5042,5043],{},"Повний контроль над SQL. Але рядки — не типізовані. Помилки виявляються лише в runtime.",[4814,5045,5047,5052,5055],{"label":5046},"Performance",[2964,5048,5049,5051],{},[3869,5050,4702],{}," у мікробенчмарках зазвичай швидший — тут немає шару побудови Expression Tree та change tracking overhead.",[2964,5053,5054],{},"Але різниця є суттєвою лише для дуже частих простих запитів (тисячі RPS). Для більшості застосунків різниця незначна.",[2964,5056,5057,5059,5060,5063,5064,5067],{},[3869,5058,4442],{}," з ",[2976,5061,5062],{},"AsNoTracking()"," та проєкцією через ",[2976,5065,5066],{},"Select()"," наближається до Dapper за швидкістю читання.",[4814,5069,5071],{"label":5070},"Можливості",[5072,5073,5074,5088],"table",{},[5075,5076,5077],"thead",{},[5078,5079,5080,5084,5086],"tr",{},[5081,5082,5083],"th",{},"Можливість",[5081,5085,4442],{},[5081,5087,4702],{},[5089,5090,5091,5103,5112,5121,5131,5141,5150,5160],"tbody",{},[5078,5092,5093,5097,5100],{},[5094,5095,5096],"td",{},"LINQ-запити",[5094,5098,5099],{},"✅",[5094,5101,5102],{},"❌",[5078,5104,5105,5108,5110],{},[5094,5106,5107],{},"Change Tracking",[5094,5109,5099],{},[5094,5111,5102],{},[5078,5113,5114,5117,5119],{},[5094,5115,5116],{},"Міграції",[5094,5118,5099],{},[5094,5120,5102],{},[5078,5122,5123,5126,5129],{},[5094,5124,5125],{},"Lazy Loading",[5094,5127,5128],{},"✅ опційно",[5094,5130,5102],{},[5078,5132,5133,5136,5138],{},[5094,5134,5135],{},"Raw SQL",[5094,5137,5099],{},[5094,5139,5140],{},"✅ (основа)",[5078,5142,5143,5146,5148],{},[5094,5144,5145],{},"Stored Procedures",[5094,5147,5099],{},[5094,5149,5099],{},[5078,5151,5152,5155,5158],{},[5094,5153,5154],{},"Bulk operations (native)",[5094,5156,5157],{},"EF Core 7+",[5094,5159,5102],{},[5078,5161,5162,5165,5168],{},[5094,5163,5164],{},"Контроль над SQL",[5094,5166,5167],{},"Частковий",[5094,5169,5170],{},"Повний",[4814,5172,5174,5179,5195,5200],{"label":5173},"Коли що обирати",[2964,5175,5176],{},[3869,5177,5178],{},"Оберіть EF Core, якщо:",[5180,5181,5182,5186,5189,5192],"ul",{},[5183,5184,5185],"li",{},"Стандартний CRUD-інтенсивний застосунок",[5183,5187,5188],{},"Команда хоче швидко рухатись без ручного SQL",[5183,5190,5191],{},"Потрібні міграції та version control для схеми БД",[5183,5193,5194],{},"DDD-підхід з доменними сутностями",[2964,5196,5197],{},[3869,5198,5199],{},"Оберіть Dapper (або обоє), якщо:",[5180,5201,5202,5205,5208,5211],{},[5183,5203,5204],{},"Складні аналітичні запити, що потребують оптимізованого SQL",[5183,5206,5207],{},"Legacy database з нестандартною схемою",[5183,5209,5210],{},"Потрібна максимальна продуктивність на конкретних endpoints",[5183,5212,5213],{},"Команда добре знає SQL і хоче залишитися \"близько до металу\"",[4044,5215,5216],{},"Прагматичний підхід у великих проєктах: використовувати EF Core для стандартних операцій із доменними сутностями, а Dapper — для складних звітних запитів або масових операцій. Обидва можуть жити в одному застосунку.",[3883,5218],{},[2959,5220,5222],{"id":5221},"чому-entity-framework-core","Чому Entity Framework Core?",[2964,5224,5225],{},"З усіх варіантів ми вивчатимемо саме EF Core. Ось чому:",[2964,5227,5228,5231],{},[3869,5229,5230],{},"1. Офіційна підтримка Microsoft."," EF Core є частиною .NET-екосистеми, розвивається тією ж командою. Кожен реліз .NET супроводжується новим мажорним релізом EF Core.",[2964,5233,5234,5237],{},[3869,5235,5236],{},"2. Найширший функціонал серед .NET ORM."," Change Tracking, міграції, LINQ-трансляція, Owned Types, JSON Columns, Interceptors, Compiled Queries — EF Core є найбільш повнофункціональним інструментом.",[2964,5239,5240,5243],{},[3869,5241,5242],{},"3. Кросплатформність."," Підтримує будь-який .NET-провайдер баз даних: PostgreSQL (Npgsql), SQL Server, MySQL, SQLite, Cosmos DB.",[2964,5245,5246,5249],{},[3869,5247,5248],{},"4. Стандарт індустрії."," Переважна більшість вакансій .NET-розробника вимагає знання EF Core. Це загальна мова команди.",[2964,5251,5252,5255],{},[3869,5253,5254],{},"5. Активна спільнота та документація."," Офіційна документація Microsoft — одна з найкращих у .NET-просторі.",[3883,5257],{},[2959,5259,5261],{"id":5260},"де-живе-ef-core-в-архітектурі","Де живе EF Core в архітектурі?",[2964,5263,5264],{},"Перш ніж зануритись у код, важливо зрозуміти, яке місце EF Core займає в типовій архітектурі .NET-застосунку:",[4282,5266,5267],{},[2968,5268,5270],{"className":4286,"code":5269,"language":4282,"meta":2974,"style":2974},"graph TD\n    subgraph \"Presentation Layer\"\n        A[\"🌐 Controllers / Endpoints\u003Cbr/>Razor Pages / Blazor\"]\n    end\n\n    subgraph \"Application Layer\"\n        B[\"📋 Application Services\u003Cbr/>Command Handlers / Queries\"]\n    end\n\n    subgraph \"Domain Layer\"\n        C[\"📦 Domain Entities\u003Cbr/>Order, Product, Customer\"]\n        D[\"🔄 Domain Services\u003Cbr/>OrderService, PricingService\"]\n    end\n\n    subgraph \"Infrastructure Layer\"\n        E[\"🗄️ DbContext\u003Cbr/>AppDbContext\"]\n        F[\"📁 Repositories\u003Cbr/>IOrderRepository\"]\n        G[\"🔌 EF Core\u003Cbr/>+ Database Provider\"]\n    end\n\n    subgraph \"Database\"\n        H[(\"💾 PostgreSQL\u003Cbr/>SQL Server\u003Cbr/>SQLite\")]\n    end\n\n    A --> B\n    B --> D\n    B --> F\n    D --> C\n    F --> E\n    E --> G\n    G --> H\n\n    style G fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n    style E fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n    style H fill:#64748b,stroke:#334155,color:#ffffff\n",[2976,5271,5272,5277,5282,5287,5292,5296,5301,5306,5310,5314,5319,5324,5329,5333,5337,5342,5347,5352,5357,5361,5365,5370,5375,5379,5383,5388,5393,5398,5403,5408,5413,5418,5422,5427,5432],{"__ignoreMap":2974},[2979,5273,5274],{"class":2981,"line":2982},[2979,5275,5276],{},"graph TD\n",[2979,5278,5279],{"class":2981,"line":3028},[2979,5280,5281],{},"    subgraph \"Presentation Layer\"\n",[2979,5283,5284],{"class":2981,"line":3034},[2979,5285,5286],{},"        A[\"🌐 Controllers / Endpoints\u003Cbr/>Razor Pages / Blazor\"]\n",[2979,5288,5289],{"class":2981,"line":3059},[2979,5290,5291],{},"    end\n",[2979,5293,5294],{"class":2981,"line":3066},[2979,5295,3063],{"emptyLinePlaceholder":3062},[2979,5297,5298],{"class":2981,"line":3084},[2979,5299,5300],{},"    subgraph \"Application Layer\"\n",[2979,5302,5303],{"class":2981,"line":3090},[2979,5304,5305],{},"        B[\"📋 Application Services\u003Cbr/>Command Handlers / Queries\"]\n",[2979,5307,5308],{"class":2981,"line":3096},[2979,5309,5291],{},[2979,5311,5312],{"class":2981,"line":3102},[2979,5313,3063],{"emptyLinePlaceholder":3062},[2979,5315,5316],{"class":2981,"line":3108},[2979,5317,5318],{},"    subgraph \"Domain Layer\"\n",[2979,5320,5321],{"class":2981,"line":3114},[2979,5322,5323],{},"        C[\"📦 Domain Entities\u003Cbr/>Order, Product, Customer\"]\n",[2979,5325,5326],{"class":2981,"line":3120},[2979,5327,5328],{},"        D[\"🔄 Domain Services\u003Cbr/>OrderService, PricingService\"]\n",[2979,5330,5331],{"class":2981,"line":3126},[2979,5332,5291],{},[2979,5334,5335],{"class":2981,"line":3132},[2979,5336,3063],{"emptyLinePlaceholder":3062},[2979,5338,5339],{"class":2981,"line":3141},[2979,5340,5341],{},"    subgraph \"Infrastructure Layer\"\n",[2979,5343,5344],{"class":2981,"line":3146},[2979,5345,5346],{},"        E[\"🗄️ DbContext\u003Cbr/>AppDbContext\"]\n",[2979,5348,5349],{"class":2981,"line":3177},[2979,5350,5351],{},"        F[\"📁 Repositories\u003Cbr/>IOrderRepository\"]\n",[2979,5353,5354],{"class":2981,"line":3193},[2979,5355,5356],{},"        G[\"🔌 EF Core\u003Cbr/>+ Database Provider\"]\n",[2979,5358,5359],{"class":2981,"line":3198},[2979,5360,5291],{},[2979,5362,5363],{"class":2981,"line":3230},[2979,5364,3063],{"emptyLinePlaceholder":3062},[2979,5366,5367],{"class":2981,"line":3258},[2979,5368,5369],{},"    subgraph \"Database\"\n",[2979,5371,5372],{"class":2981,"line":3263},[2979,5373,5374],{},"        H[(\"💾 PostgreSQL\u003Cbr/>SQL Server\u003Cbr/>SQLite\")]\n",[2979,5376,5377],{"class":2981,"line":3289},[2979,5378,5291],{},[2979,5380,5381],{"class":2981,"line":3294},[2979,5382,3063],{"emptyLinePlaceholder":3062},[2979,5384,5385],{"class":2981,"line":3319},[2979,5386,5387],{},"    A --> B\n",[2979,5389,5390],{"class":2981,"line":3324},[2979,5391,5392],{},"    B --> D\n",[2979,5394,5395],{"class":2981,"line":3345},[2979,5396,5397],{},"    B --> F\n",[2979,5399,5400],{"class":2981,"line":3351},[2979,5401,5402],{},"    D --> C\n",[2979,5404,5405],{"class":2981,"line":3387},[2979,5406,5407],{},"    F --> E\n",[2979,5409,5410],{"class":2981,"line":3392},[2979,5411,5412],{},"    E --> G\n",[2979,5414,5415],{"class":2981,"line":3427},[2979,5416,5417],{},"    G --> H\n",[2979,5419,5420],{"class":2981,"line":3433},[2979,5421,3063],{"emptyLinePlaceholder":3062},[2979,5423,5424],{"class":2981,"line":3446},[2979,5425,5426],{},"    style G fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n",[2979,5428,5429],{"class":2981,"line":3452},[2979,5430,5431],{},"    style E fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n",[2979,5433,5434],{"class":2981,"line":3466},[2979,5435,5436],{},"    style H fill:#64748b,stroke:#334155,color:#ffffff\n",[2964,5438,5439,5440,5443,5444,3222,5446,5448],{},"EF Core живе в ",[3869,5441,5442],{},"Infrastructure Layer"," (шарі інфраструктури). Він є деталлю реалізації, яку можна замінити (наприклад, перейти з SQL Server на PostgreSQL), не зачіпаючи доменну логіку. Доменні сутності (",[2976,5445,4079],{},[2976,5447,4228],{},") — у Domain Layer і нічого не знають про EF Core.",[2964,5450,5451,5452,5454],{},"Ця архітектурна ізоляція є принципово важливою. Саме тому EF Core реалізує патерн Data Mapper, а не Active Record: ваш ",[2976,5453,4079],{}," — чиста C# модель без жодного атрибуту чи залежності від фреймворку доступу до даних.",[3883,5456],{},[2959,5458,5460],{"id":5459},"концепція-code-first-модель-через-код","Концепція \"Code First\": модель через код",[2964,5462,5463],{},"EF Core підтримує два основних підходи:",[2964,5465,5466,5469],{},[3869,5467,5468],{},"Code First"," — ви описуєте модель у C# класах, EF Core генерує схему бази даних (через міграції). Це рекомендований підхід для нових проєктів.",[2964,5471,5472,5475],{},[3869,5473,5474],{},"Database First"," — ви маєте існуючу базу, EF Core scaffold-ує C# класи з неї. Підходить для роботи з legacy-базами.",[2964,5477,5478,5479,5481],{},"У цьому курсі ми зосередимось на ",[3869,5480,5468],{}," як основному підході. Ось як виглядає проста модель:",[2968,5483,5486],{"className":2970,"code":5484,"filename":5485,"language":2973,"meta":2974,"style":2974},"public class Order\n{\n    public int Id { get; set; }\n    public DateTime CreatedAt { get; set; }\n    public decimal TotalAmount { get; set; }\n    public OrderStatus Status { get; set; }\n\n    public int CustomerId { get; set; }\n    public Customer Customer { get; set; } = null!;\n\n    public ICollection\u003COrderItem> Items { get; set; } = new List\u003COrderItem>();\n}\n","Models/Order.cs",[2976,5487,5488,5498,5502,5527,5547,5567,5587,5591,5610,5636,5640,5677],{"__ignoreMap":2974},[2979,5489,5490,5492,5495],{"class":2981,"line":2982},[2979,5491,2986],{"class":2985},[2979,5493,5494],{"class":2985}," class",[2979,5496,5497],{"class":2992}," Order\n",[2979,5499,5500],{"class":2981,"line":3028},[2979,5501,3031],{"class":2996},[2979,5503,5504,5507,5510,5513,5515,5518,5521,5524],{"class":2981,"line":3034},[2979,5505,5506],{"class":2985},"    public",[2979,5508,5509],{"class":2985}," int",[2979,5511,5512],{"class":3021}," Id",[2979,5514,4758],{"class":2996},[2979,5516,5517],{"class":2985},"get",[2979,5519,5520],{"class":2996},"; ",[2979,5522,5523],{"class":2985},"set",[2979,5525,5526],{"class":2996},"; }\n",[2979,5528,5529,5531,5534,5537,5539,5541,5543,5545],{"class":2981,"line":3059},[2979,5530,5506],{"class":2985},[2979,5532,5533],{"class":2992}," DateTime",[2979,5535,5536],{"class":3021}," CreatedAt",[2979,5538,4758],{"class":2996},[2979,5540,5517],{"class":2985},[2979,5542,5520],{"class":2996},[2979,5544,5523],{"class":2985},[2979,5546,5526],{"class":2996},[2979,5548,5549,5551,5554,5557,5559,5561,5563,5565],{"class":2981,"line":3066},[2979,5550,5506],{"class":2985},[2979,5552,5553],{"class":2985}," decimal",[2979,5555,5556],{"class":3021}," TotalAmount",[2979,5558,4758],{"class":2996},[2979,5560,5517],{"class":2985},[2979,5562,5520],{"class":2996},[2979,5564,5523],{"class":2985},[2979,5566,5526],{"class":2996},[2979,5568,5569,5571,5574,5577,5579,5581,5583,5585],{"class":2981,"line":3084},[2979,5570,5506],{"class":2985},[2979,5572,5573],{"class":2992}," OrderStatus",[2979,5575,5576],{"class":3021}," Status",[2979,5578,4758],{"class":2996},[2979,5580,5517],{"class":2985},[2979,5582,5520],{"class":2996},[2979,5584,5523],{"class":2985},[2979,5586,5526],{"class":2996},[2979,5588,5589],{"class":2981,"line":3090},[2979,5590,3063],{"emptyLinePlaceholder":3062},[2979,5592,5593,5595,5597,5600,5602,5604,5606,5608],{"class":2981,"line":3096},[2979,5594,5506],{"class":2985},[2979,5596,5509],{"class":2985},[2979,5598,5599],{"class":3021}," CustomerId",[2979,5601,4758],{"class":2996},[2979,5603,5517],{"class":2985},[2979,5605,5520],{"class":2996},[2979,5607,5523],{"class":2985},[2979,5609,5526],{"class":2996},[2979,5611,5612,5614,5617,5619,5621,5623,5625,5627,5630,5633],{"class":2981,"line":3102},[2979,5613,5506],{"class":2985},[2979,5615,5616],{"class":2992}," Customer",[2979,5618,5616],{"class":3021},[2979,5620,4758],{"class":2996},[2979,5622,5517],{"class":2985},[2979,5624,5520],{"class":2996},[2979,5626,5523],{"class":2985},[2979,5628,5629],{"class":2996},"; } = ",[2979,5631,5632],{"class":2985},"null",[2979,5634,5635],{"class":2996},"!;\n",[2979,5637,5638],{"class":2981,"line":3108},[2979,5639,3063],{"emptyLinePlaceholder":3062},[2979,5641,5642,5644,5647,5649,5652,5655,5657,5659,5661,5663,5665,5667,5669,5671,5673,5675],{"class":2981,"line":3114},[2979,5643,5506],{"class":2985},[2979,5645,5646],{"class":2992}," ICollection",[2979,5648,2997],{"class":2996},[2979,5650,5651],{"class":2992},"OrderItem",[2979,5653,5654],{"class":2996},"> ",[2979,5656,3623],{"class":3021},[2979,5658,4758],{"class":2996},[2979,5660,5517],{"class":2985},[2979,5662,5520],{"class":2996},[2979,5664,5523],{"class":2985},[2979,5666,5629],{"class":2996},[2979,5668,3046],{"class":2985},[2979,5670,3049],{"class":2992},[2979,5672,2997],{"class":2996},[2979,5674,5651],{"class":2992},[2979,5676,3056],{"class":2996},[2979,5678,5679],{"class":2981,"line":3120},[2979,5680,3860],{"class":2996},[2968,5682,5685],{"className":2970,"code":5683,"filename":5684,"language":2973,"meta":2974,"style":2974},"public class AppDbContext : DbContext\n{\n    public AppDbContext(DbContextOptions\u003CAppDbContext> options) : base(options) { }\n\n    public DbSet\u003COrder> Orders => Set\u003COrder>();\n    public DbSet\u003CCustomer> Customers => Set\u003CCustomer>();\n    public DbSet\u003CProduct> Products => Set\u003CProduct>();\n}\n","Data/AppDbContext.cs",[2976,5686,5687,5702,5706,5740,5744,5770,5794,5819],{"__ignoreMap":2974},[2979,5688,5689,5691,5693,5696,5699],{"class":2981,"line":2982},[2979,5690,2986],{"class":2985},[2979,5692,5494],{"class":2985},[2979,5694,5695],{"class":2992}," AppDbContext",[2979,5697,5698],{"class":2996}," : ",[2979,5700,5701],{"class":2992},"DbContext\n",[2979,5703,5704],{"class":2981,"line":3028},[2979,5705,3031],{"class":2996},[2979,5707,5708,5710,5712,5714,5717,5719,5722,5724,5727,5730,5733,5735,5737],{"class":2981,"line":3034},[2979,5709,5506],{"class":2985},[2979,5711,5695],{"class":3011},[2979,5713,3015],{"class":2996},[2979,5715,5716],{"class":2992},"DbContextOptions",[2979,5718,2997],{"class":2996},[2979,5720,5721],{"class":2992},"AppDbContext",[2979,5723,5654],{"class":2996},[2979,5725,5726],{"class":3021},"options",[2979,5728,5729],{"class":2996},") : ",[2979,5731,5732],{"class":2985},"base",[2979,5734,3015],{"class":2996},[2979,5736,5726],{"class":3021},[2979,5738,5739],{"class":2996},") { }\n",[2979,5741,5742],{"class":2981,"line":3059},[2979,5743,3063],{"emptyLinePlaceholder":3062},[2979,5745,5746,5748,5751,5753,5755,5757,5759,5761,5764,5766,5768],{"class":2981,"line":3066},[2979,5747,5506],{"class":2985},[2979,5749,5750],{"class":2992}," DbSet",[2979,5752,2997],{"class":2996},[2979,5754,4079],{"class":2992},[2979,5756,5654],{"class":2996},[2979,5758,4591],{"class":3021},[2979,5760,4151],{"class":2996},[2979,5762,5763],{"class":3011},"Set",[2979,5765,2997],{"class":2996},[2979,5767,4079],{"class":2992},[2979,5769,3056],{"class":2996},[2979,5771,5772,5774,5776,5778,5780,5782,5784,5786,5788,5790,5792],{"class":2981,"line":3084},[2979,5773,5506],{"class":2985},[2979,5775,5750],{"class":2992},[2979,5777,2997],{"class":2996},[2979,5779,4668],{"class":2992},[2979,5781,5654],{"class":2996},[2979,5783,4031],{"class":3021},[2979,5785,4151],{"class":2996},[2979,5787,5763],{"class":3011},[2979,5789,2997],{"class":2996},[2979,5791,4668],{"class":2992},[2979,5793,3056],{"class":2996},[2979,5795,5796,5798,5800,5802,5804,5806,5809,5811,5813,5815,5817],{"class":2981,"line":3090},[2979,5797,5506],{"class":2985},[2979,5799,5750],{"class":2992},[2979,5801,2997],{"class":2996},[2979,5803,4228],{"class":2992},[2979,5805,5654],{"class":2996},[2979,5807,5808],{"class":3021},"Products",[2979,5810,4151],{"class":2996},[2979,5812,5763],{"class":3011},[2979,5814,2997],{"class":2996},[2979,5816,4228],{"class":2992},[2979,5818,3056],{"class":2996},[2979,5820,5821],{"class":2981,"line":3096},[2979,5822,3860],{"class":2996},[2964,5824,5825],{},"Це — весь код, необхідний для початку роботи. EF Core за конвенцією визначить таблиці, первинні ключі, зовнішні ключі. Рядків XML-конфігурації — нуль.",[3913,5827,5828,5829,5831],{},"Клас ",[2976,5830,4079],{}," — чистий C# об'єкт. Жодних атрибутів EF Core. Жодних базових класів. Жодних залежностей від NuGet-пакетів. Це і є сила патерну Data Mapper: ваша доменна модель залишається незалежною від інфраструктури.",[3883,5833],{},[2959,5835,5837],{"id":5836},"магічний-запит-зсередини","\"Магічний\" запит зсередини",[2964,5839,5840],{},"Давайте подивимось, що насправді відбувається, коли EF Core виконує LINQ-запит:",[2968,5842,5844],{"className":2970,"code":5843,"language":2973,"meta":2974,"style":2974},"var orders = await _context.Orders\n    .Where(o => o.CustomerId == 5 && o.Status == OrderStatus.Active)\n    .Include(o => o.Items)\n    .ToListAsync();\n",[2976,5845,5846,5862,5903,5923],{"__ignoreMap":2974},[2979,5847,5848,5850,5852,5854,5856,5858,5860],{"class":2981,"line":2982},[2979,5849,4493],{"class":2985},[2979,5851,3040],{"class":3021},[2979,5853,3043],{"class":2996},[2979,5855,3277],{"class":2985},[2979,5857,4130],{"class":3021},[2979,5859,3184],{"class":2996},[2979,5861,4135],{"class":3021},[2979,5863,5864,5866,5868,5870,5872,5874,5876,5878,5880,5882,5885,5887,5889,5891,5893,5895,5897,5899,5901],{"class":2981,"line":3028},[2979,5865,4849],{"class":2996},[2979,5867,4143],{"class":3011},[2979,5869,3015],{"class":2996},[2979,5871,4148],{"class":3021},[2979,5873,4151],{"class":2996},[2979,5875,4148],{"class":3021},[2979,5877,3184],{"class":2996},[2979,5879,4158],{"class":3021},[2979,5881,4161],{"class":2996},[2979,5883,5884],{"class":4509},"5",[2979,5886,4166],{"class":2996},[2979,5888,4148],{"class":3021},[2979,5890,3184],{"class":2996},[2979,5892,4173],{"class":3021},[2979,5894,4161],{"class":2996},[2979,5896,4178],{"class":3021},[2979,5898,3184],{"class":2996},[2979,5900,4183],{"class":3021},[2979,5902,3025],{"class":2996},[2979,5904,5905,5907,5909,5911,5913,5915,5917,5919,5921],{"class":2981,"line":3034},[2979,5906,4849],{"class":2996},[2979,5908,4192],{"class":3011},[2979,5910,3015],{"class":2996},[2979,5912,4148],{"class":3021},[2979,5914,4151],{"class":2996},[2979,5916,4148],{"class":3021},[2979,5918,3184],{"class":2996},[2979,5920,3623],{"class":3021},[2979,5922,3025],{"class":2996},[2979,5924,5925,5927,5929],{"class":2981,"line":3059},[2979,5926,4849],{"class":2996},[2979,5928,4259],{"class":3011},[2979,5930,3190],{"class":2996},[5932,5933,5934,5938,5949,5953,5960,6031,6035,6051,6055],"steps",{},[3923,5935,5937],{"id":5936},"побудова-expression-tree","Побудова Expression Tree",[2964,5939,5940,5941,5944,5945,5948],{},"LINQ-оператори ",[3869,5942,5943],{},"не виконуються одразу",". Вони будують ",[2976,5946,5947],{},"IQueryable"," — об'єкт, що містить дерево виразів (Expression Tree). Це C#-представлення вашого запиту у вигляді об'єктів, а не виконаний код.",[3923,5950,5952],{"id":5951},"трансляція-в-sql","Трансляція в SQL",[2964,5954,5955,5956,5959],{},"Коли ви викликаєте ",[2976,5957,5958],{},"ToListAsync()",", EF Core аналізує Expression Tree і транслює його у SQL-запит для конкретного провайдера бази даних:",[2968,5961,5964],{"className":5962,"code":5963,"language":3219,"meta":2974,"style":2974},"language-sql shiki shiki-themes light-plus dark-plus dark-plus","SELECT o.Id, o.CreatedAt, o.TotalAmount, o.Status, o.CustomerId,\n       oi.Id, oi.OrderId, oi.ProductId, oi.Quantity, oi.UnitPrice\nFROM Orders AS o\nLEFT JOIN OrderItems AS oi ON oi.OrderId = o.Id\nWHERE o.CustomerId = 5 AND o.Status = 1\n",[2976,5965,5966,5974,5979,5993,6012],{"__ignoreMap":2974},[2979,5967,5968,5971],{"class":2981,"line":2982},[2979,5969,5970],{"class":2985},"SELECT",[2979,5972,5973],{"class":2996}," o.Id, o.CreatedAt, o.TotalAmount, o.Status, o.CustomerId,\n",[2979,5975,5976],{"class":2981,"line":3028},[2979,5977,5978],{"class":2996},"       oi.Id, oi.OrderId, oi.ProductId, oi.Quantity, oi.UnitPrice\n",[2979,5980,5981,5984,5987,5990],{"class":2981,"line":3034},[2979,5982,5983],{"class":2985},"FROM",[2979,5985,5986],{"class":2996}," Orders ",[2979,5988,5989],{"class":2985},"AS",[2979,5991,5992],{"class":2996}," o\n",[2979,5994,5995,5998,6001,6003,6006,6009],{"class":2981,"line":3059},[2979,5996,5997],{"class":2985},"LEFT JOIN",[2979,5999,6000],{"class":2996}," OrderItems ",[2979,6002,5989],{"class":2985},[2979,6004,6005],{"class":2996}," oi ",[2979,6007,6008],{"class":2985},"ON",[2979,6010,6011],{"class":2996}," oi.OrderId = o.Id\n",[2979,6013,6014,6017,6020,6022,6025,6028],{"class":2981,"line":3066},[2979,6015,6016],{"class":2985},"WHERE",[2979,6018,6019],{"class":2996}," o.CustomerId = ",[2979,6021,5884],{"class":4509},[2979,6023,6024],{"class":2985}," AND",[2979,6026,6027],{"class":2996}," o.Status = ",[2979,6029,6030],{"class":4509},"1\n",[3923,6032,6034],{"id":6033},"виконання-та-матеріалізація","Виконання та матеріалізація",[2964,6036,6037,6038,6041,6042,6045,6046,6048,6049,3184],{},"EF Core відкриває з'єднання, виконує SQL, отримує ",[2976,6039,6040],{},"DbDataReader",". Потім ",[3869,6043,6044],{},"матеріалізує"," рядки у C#-об'єкти — тобто з плоских рядків збирає граф об'єктів: список ",[2976,6047,4079],{}," з заповненою колекцією ",[2976,6050,3623],{},[3923,6052,6054],{"id":6053},"реєстрація-в-change-tracker","Реєстрація в Change Tracker",[2964,6056,6057,6058,6061,6062,6065,6066,6069,6070,6073],{},"Кожен завантажений об'єкт реєструється у ",[3869,6059,6060],{},"Change Tracker"," — внутрішньому механізмі відстеження змін. EF Core зберігає оригінальний знімок стану. Якщо ви змінюєте ",[2976,6063,6064],{},"order.Status"," і викликаєте ",[2976,6067,6068],{},"SaveChanges()",", фреймворк автоматично генерує ",[2976,6071,6072],{},"UPDATE"," лише для тих полів, що змінились.",[2964,6075,6076],{},"Вся ця складна механіка прихована від вас. Ви пишете LINQ, отримуєте C#-об'єкти. Але розуміння того, що відбувається «під капотом», критично важливе для написання ефективного коду — і саме тому ми розберемо кожен з цих кроків детально в наступних статтях.",[3883,6078],{},[2959,6080,6082],{"id":6081},"аргументи-проти-orm-і-відповіді-на-них","Аргументи проти ORM (і відповіді на них)",[2964,6084,6085],{},"Справедливість вимагає розглянути і критику ORM. Ці аргументи реальні, і їх важливо розуміти:",[6087,6088,6089,6117,6138,6156],"accordion",{},[6090,6091,6093,6099],"accordion-item",{"icon":92,"label":6092},"«ORM генерує неефективний SQL»",[2964,6094,6095,6098],{},[3869,6096,6097],{},"Критика:"," ORM-фреймворки часто генерують громіздкий SQL з зайвими JOIN-ами, SELECT *, або ж викликають N+1 проблеми.",[2964,6100,6101,6104,6105,6108,6109,3222,6111,3222,6113,6116],{},[3869,6102,6103],{},"Відповідь:"," Це правда для ",[3869,6106,6107],{},"неправильного"," використання. З правильним застосуванням проєкцій через ",[2976,6110,5066],{},[2976,6112,5062],{},[2976,6114,6115],{},"AsSplitQuery()"," та свідомим підходом до Include — EF Core генерує ефективний SQL. Крім того, в критичних місцях завжди можна використати Raw SQL або Dapper.",[6090,6118,6121,6126],{"icon":6119,"label":6120},"i-lucide-eye-off","«ORM — це «чорна скриня»»",[2964,6122,6123,6125],{},[3869,6124,6097],{}," Розробник не завжди знає, який SQL виконується. Це ускладнює оптимізацію.",[2964,6127,6128,6130,6131,3222,6134,6137],{},[3869,6129,6103],{}," EF Core надає повноцінне логування SQL. ",[2976,6132,6133],{},"EnableSensitiveDataLogging()",[2976,6135,6136],{},"LogTo()",", структуроване логування через ILogger — ви завжди можете побачити кожен SQL-запит у консолі або логах. Ця стаття ознайомлює з підходом; детальне логування — у статті про діагностику.",[6090,6139,6142,6147],{"icon":6140,"label":6141},"i-lucide-trending-up","«ORM погано масштабується»",[2964,6143,6144,6146],{},[3869,6145,6097],{}," При великих навантаженнях ORM є вузьким місцем.",[2964,6148,6149,6151,6152,6155],{},[3869,6150,6103],{}," Stack Overflow — один з найнавантаженіших сайтів у світі — використовує Dapper і не ORM з повним feature set. Але більшість проєктів ",[3869,6153,6154],{},"не є Stack Overflow",". Для 99% застосунків правильно налаштований EF Core з пулом контекстів, проєкціями і AsNoTracking не є вузьким місцем.",[6090,6157,6160,6165],{"icon":6158,"label":6159},"i-lucide-triangle-alert","«Міграції EF Core ламають продакшн»",[2964,6161,6162,6164],{},[3869,6163,6097],{}," Автоматичні міграції — це ризик при складних змінах схеми.",[2964,6166,6167,6169,6170,6173],{},[3869,6168,6103],{}," EF Core ",[3869,6171,6172],{},"не виконує"," міграції автоматично в продакшні (якщо ви самі це не вмикаєте). Міграції є скриптами, які можна перевірити, протестувати і виконати контрольовано. Це детально розглянемо у Блоці 5.",[3883,6175],{},[2959,6177,6179],{"id":6178},"що-далі-дорожня-карта-цього-курсу","Що далі: дорожня карта цього курсу",[2964,6181,6182,6183,3222,6186,6189,6190,6193],{},"Ви тепер розумієте, ",[3869,6184,6185],{},"звідки виникла проблема",[3869,6187,6188],{},"що таке ORM концептуально"," і ",[3869,6191,6192],{},"чому EF Core є правильним вибором"," для більшості .NET-проєктів. Це — теоретичний фундамент.",[2964,6195,6196],{},"Решта курсу — це послідовне заглиблення у практику:",[4454,6198,6199,6203,6207,6211,6216],{},[4457,6200,6202],{"icon":943,"title":6201},"Блок 1: Основи","Перший проєкт, DbContext, провайдери, конвенції — від нуля до робочого CRUD за кілька статей.",[4457,6204,6206],{"icon":2354,"title":6205},"Блок 2: Моделювання","Fluent API, зв'язки, складні типи, успадкування, JSON Columns — повна карта можливостей EF Core.",[4457,6208,6210],{"icon":2552,"title":6209},"Блок 3: Запити","LINQ-трансляція, завантаження даних, Raw SQL, compiled queries — ефективна робота з даними.",[4457,6212,6215],{"icon":6213,"title":6214},"i-lucide-git-commit-horizontal","Блок 4: Change Tracking","Внутрішній механізм відстеження змін, збереження даних, конкурентний доступ.",[4457,6217,6220],{"icon":6218,"title":6219},"i-lucide-rocket","Блоки 5–7","Міграції, продуктивність, interceptors, тестування та архітектурні патерни.",[3883,6222],{},[2959,6224,6226],{"id":6225},"практичні-завдання","Практичні завдання",[4454,6228,6229,6286,6312],{},[4457,6230,6233,6271,6280],{"icon":6231,"title":6232},"i-lucide-brain","Рівень 1: Розуміння",[2964,6234,6235,6238,6239,6242,6243,6246,6247,6249,6250,5059,6252,3222,6254,3222,6256,6259,6260,6263,6264,6267,6268,6270],{},[3869,6236,6237],{},"Завдання 1.1"," — Для наступного сценарію опишіть ",[3869,6240,6241],{},"усі п'ять"," проблем Impedance Mismatch і як вони проявляються: маємо клас ",[2976,6244,6245],{},"Employee"," з властивістю ",[2976,6248,4017],{}," (тип ",[2976,6251,4017],{},[2976,6253,4021],{},[2976,6255,4024],{},[2976,6257,6258],{},"Country","), та ",[2976,6261,6262],{},"IList\u003CProject>"," (список проєктів, у кожному — ",[2976,6265,6266],{},"IList\u003CEmployee>"," — зворотня навігація). Підказка: один об'єкт ",[2976,6269,6245],{}," може брати участь у кількох проєктах, і навпаки.",[2964,6272,6273,6276,6277,6279],{},[3869,6274,6275],{},"Завдання 1.2"," — Знайдіть 2–3 open source .NET репозиторії на GitHub (будь-яка область — від CMS до e-commerce). Перевірте, чи використовують вони ORM. Якщо так — який і де знаходиться ",[2976,6278,4660],{},". Що ви можете дізнатися про архітектуру проєкту лише з файлів контексту?",[2964,6281,6282,6285],{},[3869,6283,6284],{},"Завдання 1.3"," — Перепишіть наступний метод на ADO.NET у псевдо-EF Core стиль (не потрібно, щоб код реально компілювався — лише покажіть, як би виглядала ця операція з ORM): отримати 5 найдорожчих продуктів категорії «Electronics», що мають залишок на складі більше 10 одиниць, разом із назвою постачальника.",[4457,6287,6290,6300,6306],{"icon":6288,"title":6289},"i-lucide-bar-chart","Рівень 2: Аналіз",[2964,6291,6292,6295,6296,6299],{},[3869,6293,6294],{},"Завдання 2.1"," — Розгляньте два підходи до реалізації методу ",[2976,6297,6298],{},"GetUserWithOrdersAndProducts(int userId)",". Перший підхід: один великий SQL JOIN. Другий: три окремі запити (users, orders for user, products for those orders) і ручне збирання в пам'яті. Проаналізуйте обидва: (а) кількість round-trips до БД, (б) обсяг переданих даних, (в) складність коду, (г) коли кожен підхід кращий.",[2964,6301,6302,6305],{},[3869,6303,6304],{},"Завдання 2.2"," — Складіть таблицю порівняння: для 5 різних типів проєктів (новий стартап, корпоративна ERP, аналітична система, мобільний backend, мікросервіс) визначте, який інструмент ви б обрали (EF Core, Dapper, обидва, NHibernate) і поясніть чому. Використовуйте конкретні аргументи з матеріалу статті.",[2964,6307,6308,6311],{},[3869,6309,6310],{},"Завдання 2.3"," — Наведено аргумент: «Ми великий proект з 10TB даних — нам не потрібен ORM, тільки ручний SQL». Підготуйте контраргументи (або підтримайте цю позицію) з урахуванням різних типів операцій: OLTP vs OLAP, читання vs запис, читабельність коду, продуктивність команди.",[4457,6313,6315,6335,6341],{"icon":6218,"title":6314},"Рівень 3: Практика",[2964,6316,6317,6320,6321,6324,6325,6328,6329,3222,6332,3184],{},[3869,6318,6319],{},"Завдання 3.1"," — Реалізуйте повний CRUD для сутності ",[2976,6322,6323],{},"Library"," (бібліотека з книгами) двома способами: (а) через ADO.NET з ручним маппінгом, (б) через EF Core ",[2976,6326,6327],{},"DbContext.SaveChanges()",". Порівняйте кількість рядків коду і знайдіть, де логіка виразніша. Модель: ",[2976,6330,6331],{},"Library { Id, Name, City }",[2976,6333,6334],{},"Book { Id, Title, Author, Year, LibraryId }",[2964,6336,6337,6340],{},[3869,6338,6339],{},"Завдання 3.2"," — Опишіть архітектуру доступу до даних для інтернет-магазину: які сутності будуть, які зв'язки між ними (у вигляді словесного опису або простого псевдокоду C#), де ви бачите потенційні N+1 проблеми (назвіть конкретні сценарії запитів), і як Entity Framework Core допоміг би їх вирішити.",[2964,6342,6343,6346,6347,6350],{},[3869,6344,6345],{},"Завдання 3.3"," — Дослідження: запустіть будь-який .NET-проєкт з відкритим кодом, що використовує EF Core. Знайдіть у коді місце, де використовується ",[2976,6348,6349],{},"Include()",". Спробуйте зрозуміти: (а) чому тут обрано Eager Loading, (б) чи є ризик N+1, якщо прибрати Include, (в) напишіть відповідний SQL-запит вручну — щоб порівняти з тим, що генерує EF Core.",[3883,6352],{},[2959,6354,6356],{"id":6355},"підсумок","Підсумок",[3913,6358,6359,6364],{},[2964,6360,6361],{},[3869,6362,6363],{},"Ключові думки цієї статті:",[5180,6365,6366,6372,6378,6383,6388,6393,6400],{},[5183,6367,6368,6371],{},[3869,6369,6370],{},"Impedance Mismatch"," — фундаментальне протиріччя між ООП та реляційними БД: відмінності у типах, ідентичності, зв'язках, навігації та гранулярності.",[5183,6373,6374,6377],{},[3869,6375,6376],{},"ORM"," — це патерн і технологія, що автоматизує маппінг між об'єктами та SQL, зберігаючи їх незалежними один від одного.",[5183,6379,6380,6382],{},[3869,6381,4068],{}," (реалізований у EF Core) відокремлює доменні сутності від логіки доступу до даних — це правильний підхід для тестованих, підтримуваних систем.",[5183,6384,6385,6387],{},[3869,6386,4442],{}," — офіційний, кросплатформний, повнофункціональний ORM від Microsoft для всього .NET-екосистеми.",[5183,6389,6390,6392],{},[3869,6391,4702],{}," — чудовий мікро-ORM для high-performance або складних SQL-запитів, але не замінює EF Core — вони доповнюють одне одного.",[5183,6394,6395,6396,6399],{},"EF Core LINQ-запити ",[3869,6397,6398],{},"компілюються у SQL"," в runtime через Expression Trees — це не магія, а детермінована трансляція.",[5183,6401,6402,6405],{},[3869,6403,6404],{},"Критика ORM"," (неефективний SQL, чорна скриня) є справедливою за умови невірного використання, але знімається правильними практиками.",[2964,6407,6408,6409,6413,6414,6416],{},"Наступна стаття — ",[6410,6411,6412],"a",{"href":468},"Перший проєкт: від нуля до CRUD"," — практика: встановлення, перший ",[2976,6415,4660],{},", перші міграції та повноцінний CRUD з нуля.",[6418,6419,6420],"style",{},"html pre.shiki code .su1O8, html code.shiki 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