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Primitives","/csharp/system-programming-windows/synchronization-advanced","01.csharp/07.system-programming-windows/07.synchronization-advanced",{"title":308,"path":309,"stem":310},"Синхронізація — Interlocked, Volatile та Lock-Free Структури","/csharp/system-programming-windows/07a.synchronization-advanced-walkthrough","01.csharp/07.system-programming-windows/07a.synchronization-advanced-walkthrough",{"title":312,"path":313,"stem":314},"Interlocked, CAS та Lock-Free Структури","/csharp/system-programming-windows/interlocked-cas-lockfree","01.csharp/07.system-programming-windows/08.interlocked-cas-lockfree",{"title":316,"path":317,"stem":318},"Volatile, Memory Model та Spinning","/csharp/system-programming-windows/08a.volatile-memory-model","01.csharp/07.system-programming-windows/08a.volatile-memory-model",{"title":320,"path":321,"stem":322},"ThreadPool — Пул Потоків для Ефективного 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DbProviderFactory — провайдер-незалежний код","/csharp/ado-net/provider-factory","01.csharp/09.ado-net/07.provider-factory",{"title":438,"path":439,"stem":440},"9.8. Асинхронний доступ до даних","/csharp/ado-net/async-data-access","01.csharp/09.ado-net/08.async-data-access",{"title":442,"path":443,"stem":444},"9.9. Від'єднаний режим: DataSet, DataTable, DataRow","/csharp/ado-net/disconnected-mode-dataset","01.csharp/09.ado-net/09.disconnected-mode-dataset",{"title":446,"path":447,"stem":448},"9.10. DataAdapter — міст між DataSet та базою даних","/csharp/ado-net/data-adapter","01.csharp/09.ado-net/10.data-adapter",{"title":450,"path":451,"stem":452},"9.11. Data Mapper та Repository: Архітектура доступу до даних","/csharp/ado-net/data-mapper-repository","01.csharp/09.ado-net/11.data-mapper-repository",{"title":454,"path":455,"stem":456},"9.12. Identity Map, Unit of Work та Specification Pattern","/csharp/ado-net/advanced-patterns","01.csharp/09.ado-net/12.advanced-patterns",{"title":458,"icon":255,"path":459,"stem":460,"children":461,"page":59},"Ef Core","/csharp/ef-core","01.csharp/10.ef-core",[462,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,532,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646],{"title":463,"path":464,"stem":465},"Що таке ORM? Від SQL до об'єктів","/csharp/ef-core/what-is-orm","01.csharp/10.ef-core/01.what-is-orm",{"title":467,"path":468,"stem":469},"Перший проєкт — від нуля до CRUD","/csharp/ef-core/first-project","01.csharp/10.ef-core/02.first-project",{"title":471,"path":472,"stem":473},"DbContext — Серце EF Core","/csharp/ef-core/dbcontext-deep-dive","01.csharp/10.ef-core/03.dbcontext-deep-dive",{"title":475,"path":476,"stem":477},"Провайдери баз даних — Архітектура та Вибір СУБД","/csharp/ef-core/database-providers","01.csharp/10.ef-core/04.database-providers",{"title":479,"path":480,"stem":481},"Конвенції EF Core — Магія без конфігурації","/csharp/ef-core/conventions","01.csharp/10.ef-core/05.conventions",{"title":483,"path":484,"stem":485},"Fluent API та Data Annotations — Явна конфігурація моделі","/csharp/ef-core/fluent-api-vs-annotations","01.csharp/10.ef-core/06.fluent-api-vs-annotations",{"title":487,"path":488,"stem":489},"Зв'язки — One-to-One та One-to-Many","/csharp/ef-core/relationships-basics","01.csharp/10.ef-core/07.relationships-basics",{"title":491,"path":492,"stem":493},"Зв'язки Advanced — Many-to-Many та Складні Сценарії","/csharp/ef-core/relationships-advanced","01.csharp/10.ef-core/08.relationships-advanced",{"title":495,"path":496,"stem":497},"Властивості — Типи, Конвертери, Компаратори (Частина 1)","/csharp/ef-core/property-configuration-part1","01.csharp/10.ef-core/09.property-configuration-part1",{"title":499,"path":500,"stem":501},"Властивості — Value Comparers, Generators, Shadow Properties (Частина 2)","/csharp/ef-core/property-configuration-part2","01.csharp/10.ef-core/09.property-configuration-part2",{"title":503,"path":504,"stem":505},"Складні типи — Owned Types та Complex Types (Частина 1)","/csharp/ef-core/complex-types-owned-part1","01.csharp/10.ef-core/10.complex-types-owned-part1",{"title":507,"path":508,"stem":509},"Складні типи — Complex Types, Keyless Entities, Порівняння (Частина 2)","/csharp/ef-core/complex-types-owned-part2","01.csharp/10.ef-core/10.complex-types-owned-part2",{"title":511,"path":512,"stem":513},"JSON Columns — Складні дані у JSON (Частина 1)","/csharp/ef-core/json-columns-part1","01.csharp/10.ef-core/11.json-columns-part1",{"title":515,"path":516,"stem":517},"JSON Columns — Value Comparers, Індекси, Провайдери (Частина 2)","/csharp/ef-core/json-columns-part2","01.csharp/10.ef-core/11.json-columns-part2",{"title":519,"path":520,"stem":521},"Успадкування — Абстрактні класи та TPH (Частина 1)","/csharp/ef-core/inheritance-part1","01.csharp/10.ef-core/12.inheritance-part1",{"title":523,"path":524,"stem":525},"Успадкування — TPT, TPC та Порівняння Стратегій (Частина 2)","/csharp/ef-core/inheritance-part2","01.csharp/10.ef-core/12.inheritance-part2",{"title":527,"path":528,"stem":529,"children":530},"Індекси, Обмеження та Схема (Частина 1)","/csharp/ef-core/indexes-constraints-part1","01.csharp/10.ef-core/13.indexes-constraints-part1",[531],{"title":527,"path":528,"stem":529},{"title":533,"path":534,"stem":535,"children":536},"Індекси, Обмеження та Схема (Частина 2)","/csharp/ef-core/indexes-constraints-part2","01.csharp/10.ef-core/13.indexes-constraints-part2",[537],{"title":533,"path":534,"stem":535},{"title":539,"path":540,"stem":541},"Seed Data — Початкові Дані (Частина 1)","/csharp/ef-core/seeding-part1","01.csharp/10.ef-core/14.seeding-part1",{"title":543,"path":544,"stem":545},"Seed Data — SQL-скрипти, Bogus та Стратегії (Частина 2)","/csharp/ef-core/seeding-part2","01.csharp/10.ef-core/14.seeding-part2",{"title":547,"path":548,"stem":549},"Global Query Filters — Глобальні Фільтри (Частина 1)","/csharp/ef-core/global-query-filters-part1","01.csharp/10.ef-core/15.global-query-filters-part1",{"title":551,"path":552,"stem":553},"Global Query Filters — Підводні камені та Інтеграція (Частина 2)","/csharp/ef-core/global-query-filters-part2","01.csharp/10.ef-core/15.global-query-filters-part2",{"title":555,"path":556,"stem":557},"LINQ-запити в EF Core (Частина 1)","/csharp/ef-core/linq-queries-part1","01.csharp/10.ef-core/16.linq-queries-part1",{"title":559,"path":560,"stem":561},"LINQ-запити в EF Core (Частина 2)","/csharp/ef-core/linq-queries-part2","01.csharp/10.ef-core/16.linq-queries-part2",{"title":563,"path":564,"stem":565},"Завантаження Пов'язаних Даних (Частина 1)","/csharp/ef-core/loading-related-data-part1","01.csharp/10.ef-core/17.loading-related-data-part1",{"title":567,"path":568,"stem":569},"Завантаження Пов'язаних Даних (Частина 2)","/csharp/ef-core/loading-related-data-part2","01.csharp/10.ef-core/17.loading-related-data-part2",{"title":571,"path":572,"stem":573},"Raw SQL, Views та Stored Procedures (Частина 1)","/csharp/ef-core/raw-sql-part1","01.csharp/10.ef-core/18.raw-sql-part1",{"title":575,"path":576,"stem":577},"Raw SQL — Stored Procedures, DbFunction та Bulk Operations (Частина 2)","/csharp/ef-core/raw-sql-part2","01.csharp/10.ef-core/18.raw-sql-part2",{"title":579,"path":580,"stem":581},"Продвинуті Запити — Compiled Queries, Bulk та Оптимізація (Частина 1)","/csharp/ef-core/advanced-queries-part1","01.csharp/10.ef-core/19.advanced-queries-part1",{"title":583,"path":584,"stem":585},"Продвинуті Запити — Query Tags, Bulk та Interceptors (Частина 2)","/csharp/ef-core/advanced-queries-part2","01.csharp/10.ef-core/19.advanced-queries-part2",{"title":587,"path":588,"stem":589},"Change Tracker — Відстеження Змін (Частина 1)","/csharp/ef-core/change-tracking-part1","01.csharp/10.ef-core/20.change-tracking-part1",{"title":591,"path":592,"stem":593},"Change Tracker — Графи Об'єктів та Disconnected (Частина 2)","/csharp/ef-core/change-tracking-part2","01.csharp/10.ef-core/20.change-tracking-part2",{"title":595,"path":596,"stem":597},"Збереження Даних та Транзакції (Частина 1)","/csharp/ef-core/saving-data-part1","01.csharp/10.ef-core/21.saving-data-part1",{"title":599,"path":600,"stem":601},"Збереження Даних — Concurrency та Outbox (Частина 2)","/csharp/ef-core/saving-data-part2","01.csharp/10.ef-core/21.saving-data-part2",{"title":603,"path":604,"stem":605},"Конкурентність та Блокування (Частина 1)","/csharp/ef-core/concurrency-part1","01.csharp/10.ef-core/22.concurrency-part1",{"title":607,"path":608,"stem":609},"Конкурентність — Дедлоки та Queue Processing (Частина 2)","/csharp/ef-core/concurrency-part2","01.csharp/10.ef-core/22.concurrency-part2",{"title":611,"path":612,"stem":613},"Міграції в EF Core — Основи (Частина 1)","/csharp/ef-core/migrations-basics-part1","01.csharp/10.ef-core/23.migrations-basics-part1",{"title":615,"path":616,"stem":617},"Міграції в EF Core — Основи (Частина 2)","/csharp/ef-core/migrations-basics-part2","01.csharp/10.ef-core/23.migrations-basics-part2",{"title":619,"path":620,"stem":621},"Міграції — Просунуті Сценарії (Частина 1)","/csharp/ef-core/migrations-advanced-part1","01.csharp/10.ef-core/24.migrations-advanced-part1",{"title":623,"path":624,"stem":625},"Міграції — Просунуті Сценарії (Частина 2)","/csharp/ef-core/migrations-advanced-part2","01.csharp/10.ef-core/24.migrations-advanced-part2",{"title":627,"path":628,"stem":629},"Управління Схемою та Database-First (Частина 1)","/csharp/ef-core/schema-management-part1","01.csharp/10.ef-core/25.schema-management-part1",{"title":631,"path":632,"stem":633},"Управління Схемою та Database-First (Частина 2)","/csharp/ef-core/schema-management-part2","01.csharp/10.ef-core/25.schema-management-part2",{"title":635,"path":636,"stem":637},"Продуктивність EF Core — Основи (Частина 1)","/csharp/ef-core/performance-fundamentals-part1","01.csharp/10.ef-core/26.performance-fundamentals-part1",{"title":639,"path":640,"stem":641},"Interceptors в EF Core (Частина 1)","/csharp/ef-core/interceptors-part1","01.csharp/10.ef-core/29.interceptors-part1",{"title":643,"path":644,"stem":645},"Interceptors в EF Core — Connection, Transaction та Materialization (Частина 2)","/csharp/ef-core/interceptors-part2","01.csharp/10.ef-core/29.interceptors-part2",{"title":647,"path":648,"stem":649},"План вивчення Entity Framework Core — Повний курс","/csharp/ef-core/implementation_plan","01.csharp/10.ef-core/implementation_plan",{"title":651,"icon":652,"path":653,"stem":654,"children":655,"page":59},"ASP.NET","i-devicon-dotnetcore","/csharp/aspnet","01.csharp/11.aspnet",[656,730,791,869,927,941,967,1057,1111,1182,1212,1289],{"title":657,"icon":658,"path":659,"stem":660,"children":661,"page":59},"Minimal API","i-lucide-network","/csharp/aspnet/minimal-api","01.csharp/11.aspnet/01.minimal-api",[662,666,670,674,678,682,686,690,694,698,702,706,710,714,718,722,726],{"title":663,"path":664,"stem":665},"Вступ до ASP.NET та еволюція фреймворку","/csharp/aspnet/minimal-api/introduction","01.csharp/11.aspnet/01.minimal-api/01.introduction",{"title":667,"path":668,"stem":669},"Перший додаток на ASP.NET Core","/csharp/aspnet/minimal-api/first-application","01.csharp/11.aspnet/01.minimal-api/02.first-application",{"title":671,"path":672,"stem":673},"WebApplication, Builder та Dependency Injection","/csharp/aspnet/minimal-api/webapplication-builder","01.csharp/11.aspnet/01.minimal-api/03.webapplication-builder",{"title":675,"path":676,"stem":677},"Конвеєр запитів та Middleware","/csharp/aspnet/minimal-api/request-pipeline-middleware","01.csharp/11.aspnet/01.minimal-api/04.request-pipeline-middleware",{"title":679,"path":680,"stem":681},"Маршрутизація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/routing-basics","01.csharp/11.aspnet/01.minimal-api/05.routing-basics",{"title":683,"path":684,"stem":685},"Маршрутизація в ASP.NET Core: Розширені можливості","/csharp/aspnet/minimal-api/routing-advanced","01.csharp/11.aspnet/01.minimal-api/06.routing-advanced",{"title":687,"path":688,"stem":689},"Статичні файли в ASP.NET Core","/csharp/aspnet/minimal-api/static-files","01.csharp/11.aspnet/01.minimal-api/07.static-files",{"title":691,"path":692,"stem":693},"Статичні Активи: MapStaticAssets (ASP.NET Core 9.0)","/csharp/aspnet/minimal-api/static-assets","01.csharp/11.aspnet/01.minimal-api/08.static-assets",{"title":695,"path":696,"stem":697},"Конфігурація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/configuration-fundamentals","01.csharp/11.aspnet/01.minimal-api/09.configuration-fundamentals",{"title":699,"path":700,"stem":701},"Конфігурація: Паттерн Options","/csharp/aspnet/minimal-api/configuration-options","01.csharp/11.aspnet/01.minimal-api/10.configuration-options",{"title":703,"path":704,"stem":705},"Логування в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/logging-basics","01.csharp/11.aspnet/01.minimal-api/11.logging-basics",{"title":707,"path":708,"stem":709},"Логування: Serilog та Middleware","/csharp/aspnet/minimal-api/logging-advanced","01.csharp/11.aspnet/01.minimal-api/12.logging-advanced",{"title":711,"path":712,"stem":713},"Управління станом: HttpContext.Items та Cookies","/csharp/aspnet/minimal-api/state-management","01.csharp/11.aspnet/01.minimal-api/13.state-management",{"title":715,"path":716,"stem":717},"Стан сесії: Sessions","/csharp/aspnet/minimal-api/session-state","01.csharp/11.aspnet/01.minimal-api/14.session-state",{"title":719,"path":720,"stem":721},"Структура проєкту: від хаосу до архітектури","/csharp/aspnet/minimal-api/project-structure","01.csharp/11.aspnet/01.minimal-api/15.project-structure",{"title":723,"path":724,"stem":725},"Scalar у Minimal API: повний проєкт і Fluent OpenAPI","/csharp/aspnet/minimal-api/scalar-openapi-fluent","01.csharp/11.aspnet/01.minimal-api/16.scalar-openapi-fluent",{"title":727,"path":728,"stem":729},"Swagger / Swashbuckle у Minimal API: окремий класичний шлях","/csharp/aspnet/minimal-api/swagger-swashbuckle","01.csharp/11.aspnet/01.minimal-api/17.swagger-swashbuckle",{"title":731,"icon":658,"path":732,"stem":733,"children":734,"page":59},"API","/csharp/aspnet/api","01.csharp/11.aspnet/02.api",[735,739,743,747,751,755,759,763,767,771,775,779,783,787],{"title":736,"path":737,"stem":738},"Що таке API. Клієнт-серверна архітектура","/csharp/aspnet/api/what-is-api","01.csharp/11.aspnet/02.api/01.what-is-api",{"title":740,"path":741,"stem":742},"Формати даних: JSON, XML, TOML та бінарні формати","/csharp/aspnet/api/data-formats","01.csharp/11.aspnet/02.api/02.data-formats",{"title":744,"path":745,"stem":746},"Парадигми API та концепція REST","/csharp/aspnet/api/api-paradigms-rest","01.csharp/11.aspnet/02.api/03.api-paradigms-rest",{"title":748,"path":749,"stem":750},"HTTP-методи, статус-коди та заголовки","/csharp/aspnet/api/http-methods-status-codes","01.csharp/11.aspnet/02.api/04.http-methods-status-codes",{"title":752,"path":753,"stem":754},"Організація HTTP API за принципами REST","/csharp/aspnet/api/rest-organizing","01.csharp/11.aspnet/02.api/05.rest-organizing",{"title":756,"path":757,"stem":758},"Номенклатура URL та CRUD-операції","/csharp/aspnet/api/url-nomenclature-crud","01.csharp/11.aspnet/02.api/06.url-nomenclature-crud",{"title":760,"path":761,"stem":762},"Правила дизайну: іменування та стандарти","/csharp/aspnet/api/api-design-naming","01.csharp/11.aspnet/02.api/07.api-design-naming",{"title":764,"path":765,"stem":766},"Валідація, ліміти та обробка помилок","/csharp/aspnet/api/api-design-validation","01.csharp/11.aspnet/02.api/08.api-design-validation",{"title":768,"path":769,"stem":770},"Обробка помилок у Minimal API","/csharp/aspnet/api/error-handling-http","01.csharp/11.aspnet/02.api/09.error-handling-http",{"title":772,"path":773,"stem":774},"Ідемпотентність та синхронізація стану","/csharp/aspnet/api/idempotency-sync","01.csharp/11.aspnet/02.api/10.idempotency-sync",{"title":776,"path":777,"stem":778},"Пагінація та організація списків","/csharp/aspnet/api/pagination-lists","01.csharp/11.aspnet/02.api/11.pagination-lists",{"title":780,"path":781,"stem":782},"Безпека API, кешування та інтернаціоналізація","/csharp/aspnet/api/security-auth","01.csharp/11.aspnet/02.api/12.security-auth",{"title":784,"path":785,"stem":786},"Процес проєктування API та документування","/csharp/aspnet/api/api-design-process","01.csharp/11.aspnet/02.api/13.api-design-process",{"title":788,"path":789,"stem":790},"OpenAPI: контракт, специфікація та документація API","/csharp/aspnet/api/openapi","01.csharp/11.aspnet/02.api/14.openapi",{"title":792,"icon":793,"path":794,"stem":795,"children":796,"page":59},"Auth","i-lucide-shield-check","/csharp/aspnet/auth","01.csharp/11.aspnet/03.auth",[797,801,805,809,813,817,821,825,829,833,837,841,845,849,853,857,861,865],{"title":798,"path":799,"stem":800},"Основи аутентифікації та авторизації","/csharp/aspnet/auth/auth-fundamentals","01.csharp/11.aspnet/03.auth/01.auth-fundamentals",{"title":802,"path":803,"stem":804},"JWT-аутентифікація","/csharp/aspnet/auth/jwt-authentication","01.csharp/11.aspnet/03.auth/02.jwt-authentication",{"title":806,"path":807,"stem":808},"Авторизація: ролі, політики та resource-based доступ","/csharp/aspnet/auth/authorization-policies","01.csharp/11.aspnet/03.auth/03.authorization-policies",{"title":810,"path":811,"stem":812},"Cookie-аутентифікація та ASP.NET Core Identity","/csharp/aspnet/auth/cookie-auth-identity","01.csharp/11.aspnet/03.auth/04.cookie-auth-identity",{"title":814,"path":815,"stem":816},"JWT + Refresh Tokens (HttpOnly Cookie)","/csharp/aspnet/auth/04b.identity-auth-jwt","01.csharp/11.aspnet/03.auth/04b.identity-auth-jwt",{"title":818,"path":819,"stem":820},"Identity: Підтвердження Email та Скидання Пароля","/csharp/aspnet/auth/identity-email-confirmation","01.csharp/11.aspnet/03.auth/05.identity-email-confirmation",{"title":822,"path":823,"stem":824},"Identity: Двофакторна Аутентифікація (2FA)","/csharp/aspnet/auth/identity-two-factor","01.csharp/11.aspnet/03.auth/06.identity-two-factor",{"title":826,"path":827,"stem":828},"Identity: Внутрішня Архітектура та Кастомізація","/csharp/aspnet/auth/identity-internals","01.csharp/11.aspnet/03.auth/07.identity-internals",{"title":830,"path":831,"stem":832},"OAuth 2.0 та зовнішні провайдери","/csharp/aspnet/auth/oauth-external-providers","01.csharp/11.aspnet/03.auth/08.oauth-external-providers",{"title":834,"path":835,"stem":836},"Безпека на практиці: CORS, HTTPS та захист від атак","/csharp/aspnet/auth/security-hardening","01.csharp/11.aspnet/03.auth/09.security-hardening",{"title":838,"path":839,"stem":840},"Теорія OAuth 2.0: Поняття, Аналогії та Флоу","/csharp/aspnet/auth/oauth-theory","01.csharp/11.aspnet/03.auth/10.oauth-theory",{"title":842,"path":843,"stem":844},"OIDC, OAuth 2.0 та Keycloak в ASP.NET Core","/csharp/aspnet/auth/oidc-keycloak","01.csharp/11.aspnet/03.auth/10.oidc-keycloak",{"title":846,"path":847,"stem":848},"API Keys аутентифікація в ASP.NET Core","/csharp/aspnet/auth/api-keys","01.csharp/11.aspnet/03.auth/11.api-keys",{"title":850,"path":851,"stem":852},"Rate Limiting та Throttling в ASP.NET Core","/csharp/aspnet/auth/rate-limiting","01.csharp/11.aspnet/03.auth/12.rate-limiting",{"title":854,"path":855,"stem":856},"Refresh Token Rotation в ASP.NET Core","/csharp/aspnet/auth/refresh-token-rotation","01.csharp/11.aspnet/03.auth/13.refresh-token-rotation",{"title":858,"path":859,"stem":860},"Certificate Authentication та mTLS в ASP.NET Core","/csharp/aspnet/auth/certificate-auth","01.csharp/11.aspnet/03.auth/14.certificate-auth",{"title":862,"path":863,"stem":864},"RBAC, ABAC та ReBAC в ASP.NET Core","/csharp/aspnet/auth/rbac-abac-rebac","01.csharp/11.aspnet/03.auth/15.rbac-abac-rebac",{"title":866,"path":867,"stem":868},"Multi-tenancy та ізоляція даних в ASP.NET Core","/csharp/aspnet/auth/multi-tenancy","01.csharp/11.aspnet/03.auth/16.multi-tenancy",{"title":870,"icon":871,"path":872,"stem":873,"children":874,"page":59},"Нотифікації","i-lucide-bell","/csharp/aspnet/notifications","01.csharp/11.aspnet/04.notifications",[875,879,883,887,891,895,899,903,907,911,915,919,923],{"title":876,"path":877,"stem":878},"In-App нотифікації через базу даних","/csharp/aspnet/notifications/in-app-database-notifications","01.csharp/11.aspnet/04.notifications/01.in-app-database-notifications",{"title":880,"path":881,"stem":882},"Polling: Регулярний запит оновлень","/csharp/aspnet/notifications/polling","01.csharp/11.aspnet/04.notifications/02.polling",{"title":884,"path":885,"stem":886},"Server-Sent Events: Однострімовий push від сервера","/csharp/aspnet/notifications/server-sent-events","01.csharp/11.aspnet/04.notifications/03.server-sent-events",{"title":888,"path":889,"stem":890},"WebSockets: Двостороннє з'єднання в реальному часі","/csharp/aspnet/notifications/websockets","01.csharp/11.aspnet/04.notifications/04.websockets",{"title":892,"path":893,"stem":894},"SignalR: Абстракція над транспортами реального часу","/csharp/aspnet/notifications/signalr","01.csharp/11.aspnet/04.notifications/05.signalr",{"title":896,"path":897,"stem":898},"Background Services: Фонові задачі в ASP.NET Core","/csharp/aspnet/notifications/background-services","01.csharp/11.aspnet/04.notifications/06.background-services",{"title":900,"path":901,"stem":902},"Web Push нотифікації","/csharp/aspnet/notifications/web-push","01.csharp/11.aspnet/04.notifications/07.web-push",{"title":904,"path":905,"stem":906},"Email нотифікації","/csharp/aspnet/notifications/email-notifications","01.csharp/11.aspnet/04.notifications/08.email-notifications",{"title":908,"path":909,"stem":910},"Порівняння підходів: Як вибрати правильну технологію нотифікацій","/csharp/aspnet/notifications/choosing-the-right-approach","01.csharp/11.aspnet/04.notifications/09.choosing-the-right-approach",{"title":912,"path":913,"stem":914},"Hangfire: Надійне планування фонових задач","/csharp/aspnet/notifications/hangfire","01.csharp/11.aspnet/04.notifications/10.hangfire",{"title":916,"path":917,"stem":918},"Практика: Конвертація зображень у WebP через Hangfire","/csharp/aspnet/notifications/hangfire-image-webp","01.csharp/11.aspnet/04.notifications/11.hangfire-image-webp",{"title":920,"path":921,"stem":922},"Практика: Підготовка відео до HLS-стрімінгу через Hangfire","/csharp/aspnet/notifications/hangfire-video-hls","01.csharp/11.aspnet/04.notifications/12.hangfire-video-hls",{"title":924,"path":925,"stem":926},"Telegram-нотифікації: від одного повідомлення до масових розсилок і мульти-канального підходу","/csharp/aspnet/notifications/telegram-notifications","01.csharp/11.aspnet/04.notifications/13.telegram-notifications",{"title":928,"icon":929,"path":930,"stem":931,"children":932,"page":59},"Інтернаціоналізація","i-lucide-languages","/csharp/aspnet/i18n","01.csharp/11.aspnet/05.i18n",[933,937],{"title":934,"path":935,"stem":936},"Інтернаціоналізація (i18n) у Minimal API: від A до Я","/csharp/aspnet/i18n/internationalization","01.csharp/11.aspnet/05.i18n/01.internationalization",{"title":938,"path":939,"stem":940},"Humanizer: людиномовні рядки у .NET","/csharp/aspnet/i18n/humanizer","01.csharp/11.aspnet/05.i18n/02.humanizer",{"title":942,"icon":943,"path":944,"stem":945,"children":946,"page":59},"Кешування","i-lucide-layers","/csharp/aspnet/caching","01.csharp/11.aspnet/06.caching",[947,951,955,959,963],{"title":948,"path":949,"stem":950},"Огляд кешування: чотири рівні і коли що обирати","/csharp/aspnet/caching/caching","01.csharp/11.aspnet/06.caching/01.caching",{"title":952,"path":953,"stem":954},"IMemoryCache: кеш в оперативній пам'яті","/csharp/aspnet/caching/memory-cache","01.csharp/11.aspnet/06.caching/02.memory-cache",{"title":956,"path":957,"stem":958},"IDistributedCache і Redis: розподілений кеш","/csharp/aspnet/caching/distributed-cache","01.csharp/11.aspnet/06.caching/03.distributed-cache",{"title":960,"path":961,"stem":962},"Response Cache: HTTP-кешування через Cache-Control","/csharp/aspnet/caching/response-cache","01.csharp/11.aspnet/06.caching/04.response-cache",{"title":964,"path":965,"stem":966},"Output Cache: серверний кеш HTTP-відповідей (.NET 7+)","/csharp/aspnet/caching/output-cache","01.csharp/11.aspnet/06.caching/05.output-cache",{"title":968,"icon":969,"path":970,"stem":971,"children":972,"page":59},"Тестування","i-lucide-test-tube","/csharp/aspnet/testing","01.csharp/11.aspnet/07.testing",[973,977,981,985,989,993,997,1001,1005,1009,1013,1017,1021,1025,1029,1033,1037,1041,1045,1049,1053],{"title":974,"path":975,"stem":976},"Що таке тестування? Від інтуїції до науки","/csharp/aspnet/testing/what-is-testing","01.csharp/11.aspnet/07.testing/01.what-is-testing",{"title":978,"path":979,"stem":980},"Піраміда тестування — Стратегія, а не Догма","/csharp/aspnet/testing/testing-pyramid","01.csharp/11.aspnet/07.testing/02.testing-pyramid",{"title":982,"path":983,"stem":984},"Дві Школи Тестування — Лондон проти Детройту","/csharp/aspnet/testing/testing-schools","01.csharp/11.aspnet/07.testing/03.testing-schools",{"title":986,"path":987,"stem":988},"TDD та BDD — Тести як Дизайн-інструмент","/csharp/aspnet/testing/tdd-and-bdd","01.csharp/11.aspnet/07.testing/04.tdd-and-bdd",{"title":990,"path":991,"stem":992},"Що саме тестувати — Техніки аналізу та Циклomatична складність","/csharp/aspnet/testing/what-to-test","01.csharp/11.aspnet/07.testing/05.what-to-test",{"title":994,"path":995,"stem":996},"Тестові Фреймворки — Навіщо вони і що всередині","/csharp/aspnet/testing/test-frameworks","01.csharp/11.aspnet/07.testing/06.test-frameworks",{"title":998,"path":999,"stem":1000},"xUnit — Факти, Теорії та Lifecycle тестів","/csharp/aspnet/testing/xunit-basics","01.csharp/11.aspnet/07.testing/07.xunit-basics",{"title":1002,"path":1003,"stem":1004},"xUnit Advanced — Fixtures, Кастомізація та Розширення","/csharp/aspnet/testing/xunit-advanced","01.csharp/11.aspnet/07.testing/08.xunit-advanced",{"title":1006,"path":1007,"stem":1008},"Moq — Глибоке занурення в мокування","/csharp/aspnet/testing/mocking-with-moq","01.csharp/11.aspnet/07.testing/09.mocking-with-moq",{"title":1010,"path":1011,"stem":1012},"Тестування Баз Даних — EF Core, SQLite та Testcontainers","/csharp/aspnet/testing/database-testing","01.csharp/11.aspnet/07.testing/10.database-testing",{"title":1014,"path":1015,"stem":1016},"Integration Testing — Частина 1 [Теорія та WebApplicationFactory]","/csharp/aspnet/testing/integration-testing","01.csharp/11.aspnet/07.testing/11.integration-testing",{"title":1018,"path":1019,"stem":1020},"Інтеграційне тестування — Практика","/csharp/aspnet/testing/11a.integration-testing-practice","01.csharp/11.aspnet/07.testing/11a.integration-testing-practice",{"title":1022,"path":1023,"stem":1024},"Integration Testing — Частина 2 [Просунуті Сценарії та Testcontainers]","/csharp/aspnet/testing/integration-testing-advanced","01.csharp/11.aspnet/07.testing/12.integration-testing-advanced",{"title":1026,"path":1027,"stem":1028},"Професійний Postman: Колекції, Змінні та GitHub Інтеграція","/csharp/aspnet/testing/postman-professional","01.csharp/11.aspnet/07.testing/13.postman-professional",{"title":1030,"path":1031,"stem":1032},"HttpClient у Тестах Частина 1: Архітектура та MockHttpMessageHandler","/csharp/aspnet/testing/httpclient-testing","01.csharp/11.aspnet/07.testing/14.httpclient-testing",{"title":1034,"path":1035,"stem":1036},"HttpClient у Тестах Частина 2: WireMock.Net та Resilience","/csharp/aspnet/testing/wiremock-net","01.csharp/11.aspnet/07.testing/15.wiremock-net",{"title":1038,"path":1039,"stem":1040},"Патерни та Анти-патерни Тестування: Test Smells","/csharp/aspnet/testing/testing-patterns","01.csharp/11.aspnet/07.testing/16.testing-patterns",{"title":1042,"path":1043,"stem":1044},"Просунуті інструменти: Time, Snapshots та Властивості","/csharp/aspnet/testing/advanced-testing-tools","01.csharp/11.aspnet/07.testing/17.advanced-testing-tools",{"title":1046,"path":1047,"stem":1048},"Тестування Архітектури з NetArchTest","/csharp/aspnet/testing/architecture-testing","01.csharp/11.aspnet/07.testing/18.architecture-testing",{"title":1050,"path":1051,"stem":1052},"Тестування Продуктивності: BenchmarkDotNet, NBomber та k6","/csharp/aspnet/testing/performance-testing","01.csharp/11.aspnet/07.testing/19.performance-testing",{"title":1054,"path":1055,"stem":1056},"Залишок плану для курсу \"Тестування ASP.NET Minimal API\"","/csharp/aspnet/testing/remaining_plan","01.csharp/11.aspnet/07.testing/remaining_plan",{"title":1058,"icon":1059,"path":1060,"stem":1061,"children":1062,"page":59},"Платежі","i-lucide-credit-card","/csharp/aspnet/payments","01.csharp/11.aspnet/08.payments",[1063,1067,1071,1075,1079,1083,1087,1091,1095,1099,1103,1107],{"title":1064,"path":1065,"stem":1066},"Основи платіжної інфраструктури","/csharp/aspnet/payments/payment-fundamentals","01.csharp/11.aspnet/08.payments/01.payment-fundamentals",{"title":1068,"path":1069,"stem":1070},"Методи оплати в Україні","/csharp/aspnet/payments/payment-methods-ukraine","01.csharp/11.aspnet/08.payments/02.payment-methods-ukraine",{"title":1072,"path":1073,"stem":1074},"PCI DSS та безпека платежів","/csharp/aspnet/payments/pci-dss-security","01.csharp/11.aspnet/08.payments/03.pci-dss-security",{"title":1076,"path":1077,"stem":1078},"Архітектура платіжної підсистеми","/csharp/aspnet/payments/payment-architecture","01.csharp/11.aspnet/08.payments/04.payment-architecture",{"title":1080,"path":1081,"stem":1082},"Інтеграція LiqPay (ПриватБанк)","/csharp/aspnet/payments/liqpay-integration","01.csharp/11.aspnet/08.payments/05.liqpay-integration",{"title":1084,"path":1085,"stem":1086},"Інтеграція Monobank Acquiring API","/csharp/aspnet/payments/monobank-acquiring","01.csharp/11.aspnet/08.payments/06.monobank-acquiring",{"title":1088,"path":1089,"stem":1090},"Інтеграція Stripe","/csharp/aspnet/payments/stripe-integration","01.csharp/11.aspnet/08.payments/07.stripe-integration",{"title":1092,"path":1093,"stem":1094},"Webhooks — глибоке занурення","/csharp/aspnet/payments/webhooks-deep-dive","01.csharp/11.aspnet/08.payments/08.webhooks-deep-dive",{"title":1096,"path":1097,"stem":1098},"Підписки та рекурентні платежі","/csharp/aspnet/payments/subscriptions-recurring","01.csharp/11.aspnet/08.payments/09.subscriptions-recurring",{"title":1100,"path":1101,"stem":1102},"Повернення коштів та диспути","/csharp/aspnet/payments/refunds-disputes","01.csharp/11.aspnet/08.payments/10.refunds-disputes",{"title":1104,"path":1105,"stem":1106},"Тестування платіжних інтеграцій","/csharp/aspnet/payments/testing-payments","01.csharp/11.aspnet/08.payments/11.testing-payments",{"title":1108,"path":1109,"stem":1110},"Чекліст виходу в Production","/csharp/aspnet/payments/production-checklist","01.csharp/11.aspnet/08.payments/12.production-checklist",{"title":1112,"icon":1113,"items":1114,"path":1127,"stem":1128,"children":1129,"page":59},"Популярні бібліотеки","lucide:box",[1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126],"01.fluent-validation","02.mapster","03.erroror-result-pattern","04.serilog","05.mediatr","06.polly","07.health-checks","08.feature-management","09.fluent-email","10.quest-pdf","11.bogus","12.humanizer-guard","/csharp/aspnet/libraries","01.csharp/11.aspnet/09.libraries",[1130,1134,1138,1142,1146,1150,1154,1158,1162,1166,1170,1174,1178],{"title":1131,"path":1132,"stem":1133},"Валідація з FluentValidation в ASP.NET Core","/csharp/aspnet/libraries/fluent-validation","01.csharp/11.aspnet/09.libraries/01.fluent-validation",{"title":1135,"path":1136,"stem":1137},"Маппінг об","/csharp/aspnet/libraries/mapster","01.csharp/11.aspnet/09.libraries/02.mapster",{"title":1139,"path":1140,"stem":1141},"Обробка помилок з ErrorOr та Result Pattern в ASP.NET Core","/csharp/aspnet/libraries/erroror-result-pattern","01.csharp/11.aspnet/09.libraries/03.erroror-result-pattern",{"title":1143,"path":1144,"stem":1145},"Структуроване логування з Serilog в ASP.NET Core","/csharp/aspnet/libraries/serilog","01.csharp/11.aspnet/09.libraries/04.serilog",{"title":1147,"path":1148,"stem":1149},"CQRS та Mediator з MediatR в ASP.NET Core","/csharp/aspnet/libraries/mediatr","01.csharp/11.aspnet/09.libraries/05.mediatr",{"title":1151,"path":1152,"stem":1153},"Відмовостійкість з Polly в ASP.NET Core","/csharp/aspnet/libraries/polly","01.csharp/11.aspnet/09.libraries/06.polly",{"title":1155,"path":1156,"stem":1157},"Health Checks в ASP.NET Core","/csharp/aspnet/libraries/health-checks","01.csharp/11.aspnet/09.libraries/07.health-checks",{"title":1159,"path":1160,"stem":1161},"Feature Management та Feature Flags в ASP.NET Core","/csharp/aspnet/libraries/feature-management","01.csharp/11.aspnet/09.libraries/08.feature-management",{"title":1163,"path":1164,"stem":1165},"Відправка Email з FluentEmail в ASP.NET Core","/csharp/aspnet/libraries/fluent-email","01.csharp/11.aspnet/09.libraries/09.fluent-email",{"title":1167,"path":1168,"stem":1169},"Генерація PDF з QuestPDF в ASP.NET Core","/csharp/aspnet/libraries/quest-pdf","01.csharp/11.aspnet/09.libraries/10.quest-pdf",{"title":1171,"path":1172,"stem":1173},"Генерація тестових даних з Bogus в ASP.NET Core","/csharp/aspnet/libraries/bogus","01.csharp/11.aspnet/09.libraries/11.bogus",{"title":1175,"path":1176,"stem":1177},"Humanizer та Guard Clauses в ASP.NET Core","/csharp/aspnet/libraries/humanizer-guard","01.csharp/11.aspnet/09.libraries/12.humanizer-guard",{"title":1179,"path":1180,"stem":1181},"План модуля 10.libraries — Популярні бібліотеки ASP.NET","/csharp/aspnet/libraries/plan","01.csharp/11.aspnet/09.libraries/plan",{"title":1183,"icon":1184,"path":1185,"stem":1186,"children":1187,"page":59},"Razor Pages","i-lucide-layout-template","/csharp/aspnet/razor-pages","01.csharp/11.aspnet/10.razor-pages",[1188,1192,1196,1200,1204,1208],{"title":1189,"path":1190,"stem":1191},"Від Minimal API до Razor Pages: концептуальний перехід","/csharp/aspnet/razor-pages/from-minimal-api","01.csharp/11.aspnet/10.razor-pages/01.from-minimal-api",{"title":1193,"path":1194,"stem":1195},"PageModel: логіка сторінки Razor Pages","/csharp/aspnet/razor-pages/page-model","01.csharp/11.aspnet/10.razor-pages/02.page-model",{"title":1197,"path":1198,"stem":1199},"Razor синтаксис: шаблонізатор у .cshtml","/csharp/aspnet/razor-pages/razor-syntax","01.csharp/11.aspnet/10.razor-pages/03.razor-syntax",{"title":1201,"path":1202,"stem":1203},"Tag Helpers: типізований HTML","/csharp/aspnet/razor-pages/tag-helpers","01.csharp/11.aspnet/10.razor-pages/04.tag-helpers",{"title":1205,"path":1206,"stem":1207},"Форми і валідація: повний цикл обробки даних","/csharp/aspnet/razor-pages/forms-validation","01.csharp/11.aspnet/10.razor-pages/05.forms-validation",{"title":1209,"path":1210,"stem":1211},"Практичний проєкт: TaskManager на Razor Pages","/csharp/aspnet/razor-pages/project-task-manager","01.csharp/11.aspnet/10.razor-pages/06.project-task-manager",{"title":1213,"path":1214,"stem":1215,"children":1216,"page":59},"ASP.NET Core MVC","/csharp/aspnet/mvc","01.csharp/11.aspnet/11.mvc",[1217,1221,1225,1229,1233,1237,1241,1245,1249,1253,1257,1261,1265,1269,1273,1277,1281,1285],{"title":1218,"path":1219,"stem":1220},"Патерн MVC: архітектура, що змінила веб","/csharp/aspnet/mvc/mvc-pattern","01.csharp/11.aspnet/11.mvc/01.mvc-pattern",{"title":1222,"path":1223,"stem":1224},"Від Razor Pages до MVC: концептуальний перехід","/csharp/aspnet/mvc/from-razor-pages","01.csharp/11.aspnet/11.mvc/02.from-razor-pages",{"title":1226,"path":1227,"stem":1228},"Controllers та Actions: серце MVC","/csharp/aspnet/mvc/controllers-actions","01.csharp/11.aspnet/11.mvc/03.controllers-actions",{"title":1230,"path":1231,"stem":1232},"Маршрутизація в MVC: Convention vs Attribute Routing","/csharp/aspnet/mvc/routing-mvc","01.csharp/11.aspnet/11.mvc/04.routing-mvc",{"title":1234,"path":1235,"stem":1236},"Model Binding: від HTTP до C#","/csharp/aspnet/mvc/model-binding","01.csharp/11.aspnet/11.mvc/05.model-binding",{"title":1238,"path":1239,"stem":1240},"Views, ViewData, ViewBag, TempData і ViewModel","/csharp/aspnet/mvc/views-viewdata-tempdata","01.csharp/11.aspnet/11.mvc/06.views-viewdata-tempdata",{"title":1242,"path":1243,"stem":1244},"Filters: аспектно-орієнтоване програмування в MVC","/csharp/aspnet/mvc/filters","01.csharp/11.aspnet/11.mvc/07.filters",{"title":1246,"path":1247,"stem":1248},"Areas: структурування великих застосунків","/csharp/aspnet/mvc/areas","01.csharp/11.aspnet/11.mvc/08.areas",{"title":1250,"path":1251,"stem":1252},"View Components: повторювані незалежні блоки UI","/csharp/aspnet/mvc/view-components","01.csharp/11.aspnet/11.mvc/09.view-components",{"title":1254,"path":1255,"stem":1256},"Display та Editor Templates","/csharp/aspnet/mvc/display-editor-templates","01.csharp/11.aspnet/11.mvc/10.display-editor-templates",{"title":1258,"path":1259,"stem":1260},"Валідація: IValidatableObject та FluentValidation","/csharp/aspnet/mvc/validation-advanced","01.csharp/11.aspnet/11.mvc/11.validation-advanced",{"title":1262,"path":1263,"stem":1264},"HTMX: інтерактивність через HTML-атрибути","/csharp/aspnet/mvc/htmx","01.csharp/11.aspnet/11.mvc/12.htmx",{"title":1266,"path":1267,"stem":1268},"HTMX у ASP.NET Core MVC: серверна інтеграція","/csharp/aspnet/mvc/ajax-htmx-mvc","01.csharp/11.aspnet/11.mvc/13.ajax-htmx-mvc",{"title":1270,"path":1271,"stem":1272},"Практичний проєкт: Каталог товарів з HTMX","/csharp/aspnet/mvc/htmx-project","01.csharp/11.aspnet/11.mvc/14.htmx-project",{"title":1274,"path":1275,"stem":1276},"Завантаження та обробка файлів","/csharp/aspnet/mvc/file-upload","01.csharp/11.aspnet/11.mvc/15.file-upload",{"title":1278,"path":1279,"stem":1280},"Глобалізація та Локалізація MVC","/csharp/aspnet/mvc/globalization-localization","01.csharp/11.aspnet/11.mvc/16.globalization-localization",{"title":1282,"path":1283,"stem":1284},"Підсумковий проєкт: Блог-платформа","/csharp/aspnet/mvc/mvc-project","01.csharp/11.aspnet/11.mvc/17.mvc-project",{"title":1286,"path":1287,"stem":1288},"План курсу: ASP.NET Core MVC","/csharp/aspnet/mvc/plan","01.csharp/11.aspnet/11.mvc/plan",{"title":1290,"path":1291,"stem":1292,"children":1293,"page":59},"Web Api","/csharp/aspnet/web-api","01.csharp/11.aspnet/12.web-api",[1294,1298,1302,1306,1310,1314,1318,1322,1326,1330,1334,1338,1342],{"title":1295,"path":1296,"stem":1297},"Від Minimal API до Controller-based API","/csharp/aspnet/web-api/from-minimal-api-to-controllers","01.csharp/11.aspnet/12.web-api/01.from-minimal-api-to-controllers",{"title":1299,"path":1300,"stem":1301},"ControllerBase, ActionResult\u003CT> та Response Types","/csharp/aspnet/web-api/controller-base-actionresult","01.csharp/11.aspnet/12.web-api/02.controller-base-actionresult",{"title":1303,"path":1304,"stem":1305},"Content Negotiation - JSON, XML та власні форматери","/csharp/aspnet/web-api/content-negotiation","01.csharp/11.aspnet/12.web-api/03.content-negotiation",{"title":1307,"path":1308,"stem":1309},"Версіонування API","/csharp/aspnet/web-api/api-versioning","01.csharp/11.aspnet/12.web-api/04.api-versioning",{"title":1311,"path":1312,"stem":1313},"ProblemDetails та структурована обробка помилок","/csharp/aspnet/web-api/problemdetails-error-handling","01.csharp/11.aspnet/12.web-api/05.problemdetails-error-handling",{"title":1315,"path":1316,"stem":1317},"Фільтри у Web API контексті","/csharp/aspnet/web-api/filters-for-api","01.csharp/11.aspnet/12.web-api/06.filters-for-api",{"title":1319,"path":1320,"stem":1321},"Пагінація, фільтрація та сортування","/csharp/aspnet/web-api/pagination-filtering-sorting","01.csharp/11.aspnet/12.web-api/07.pagination-filtering-sorting",{"title":1323,"path":1324,"stem":1325},"HATEOAS та Resource Expansion","/csharp/aspnet/web-api/hateoas-resource-expansion","01.csharp/11.aspnet/12.web-api/08.hateoas-resource-expansion",{"title":1327,"path":1328,"stem":1329},"Гібридна архітектура - Minimal API + Controllers","/csharp/aspnet/web-api/minimal-api-vs-controllers-hybrid","01.csharp/11.aspnet/12.web-api/09.minimal-api-vs-controllers-hybrid",{"title":1331,"path":1332,"stem":1333},"Документація API - Swashbuckle, NSwag та генерація клієнтів","/csharp/aspnet/web-api/api-documentation-generation","01.csharp/11.aspnet/12.web-api/10.api-documentation-generation",{"title":1335,"path":1336,"stem":1337},"Health Checks та моніторинг API","/csharp/aspnet/web-api/health-checks-monitoring","01.csharp/11.aspnet/12.web-api/11.health-checks-monitoring",{"title":1339,"path":1340,"stem":1341},"Підсумковий проєкт - Production-Ready REST API","/csharp/aspnet/web-api/web-api-project","01.csharp/11.aspnet/12.web-api/12.web-api-project",{"title":1343,"path":1344,"stem":1345},"План курсу: ASP.NET Core Web API (Controllers)","/csharp/aspnet/web-api/plan","01.csharp/11.aspnet/12.web-api/plan",{"title":1347,"icon":1348,"path":1349,"stem":1350,"children":1351,"page":59},"Desktop UI","i-lucide-app-window","/csharp/desktop-ui","01.csharp/12.desktop-ui",[1352,1356,1360,1364,1368,1372,1376,1380,1384,1388,1392,1396,1400,1404,1408,1412,1416,1420,1424,1428,1432,1436,1440,1444,1448,1452,1456,1460,1464,1468,1472,1476,1480,1484,1488,1492,1496,1500,1504,1508,1512,1516,1520,1524,1528,1532,1536,1540,1544,1548,1552,1556,1560,1564,1568,1572,1576,1580,1584,1588,1592,1596,1600,1604,1608,1612,1616,1620,1624,1628,1632],{"title":1353,"path":1354,"stem":1355},"Що таке десктопна розробка?","/csharp/desktop-ui/what-is-desktop-dev","01.csharp/12.desktop-ui/01.what-is-desktop-dev",{"title":1357,"path":1358,"stem":1359},"Архітектура WPF — як влаштований графічний інтерфейс","/csharp/desktop-ui/wpf-architecture","01.csharp/12.desktop-ui/02.wpf-architecture",{"title":1361,"path":1362,"stem":1363},"Перший WPF-проєкт — від нуля до вікна","/csharp/desktop-ui/first-wpf-app","01.csharp/12.desktop-ui/03.first-wpf-app",{"title":1365,"path":1366,"stem":1367},"Перший Avalonia-проєкт: WPF для всіх платформ","/csharp/desktop-ui/03a.first-avalonia-app","01.csharp/12.desktop-ui/03a.first-avalonia-app",{"title":1369,"path":1370,"stem":1371},"XAML: декларативний інтерфейс","/csharp/desktop-ui/xaml-basics","01.csharp/12.desktop-ui/04.xaml-basics",{"title":1373,"path":1374,"stem":1375},"Fluent UI у WPF — сучасний дизайн Windows 11","/csharp/desktop-ui/04a.wpf-fluent-ui","01.csharp/12.desktop-ui/04a.wpf-fluent-ui",{"title":1377,"path":1378,"stem":1379},"WPF UI — сучасна бібліотека Fluent контролів","/csharp/desktop-ui/04b.wpf-ui-library","01.csharp/12.desktop-ui/04b.wpf-ui-library",{"title":1381,"path":1382,"stem":1383},"HandyControl — велика бібліотека UI контролів для WPF","/csharp/desktop-ui/04c.handycontrol-library","01.csharp/12.desktop-ui/04c.handycontrol-library",{"title":1385,"path":1386,"stem":1387},"Простори імен та ресурси XAML","/csharp/desktop-ui/xaml-namespaces-resources","01.csharp/12.desktop-ui/05.xaml-namespaces-resources",{"title":1389,"path":1390,"stem":1391},"XAML в Avalonia: ключові відмінності від WPF","/csharp/desktop-ui/05a.avalonia-xaml-differences","01.csharp/12.desktop-ui/05a.avalonia-xaml-differences",{"title":1393,"path":1394,"stem":1395},"Розширення розмітки XAML (Markup Extensions)","/csharp/desktop-ui/xaml-markup-extensions","01.csharp/12.desktop-ui/06.xaml-markup-extensions",{"title":1397,"path":1398,"stem":1399},"Панелі Layout: StackPanel, WrapPanel, DockPanel","/csharp/desktop-ui/layout-panels-part1","01.csharp/12.desktop-ui/07.layout-panels-part1",{"title":1401,"path":1402,"stem":1403},"Grid, Canvas, UniformGrid","/csharp/desktop-ui/layout-panels-part2","01.csharp/12.desktop-ui/07.layout-panels-part2",{"title":1405,"path":1406,"stem":1407},"Просунуті техніки Layout","/csharp/desktop-ui/layout-advanced","01.csharp/12.desktop-ui/08.layout-advanced",{"title":1409,"path":1410,"stem":1411},"Адаптивний Layout та найкращі практики","/csharp/desktop-ui/layout-responsive","01.csharp/12.desktop-ui/09.layout-responsive",{"title":1413,"path":1414,"stem":1415},"Layout в Avalonia: відмінності та нові можливості","/csharp/desktop-ui/09a.layout-avalonia","01.csharp/12.desktop-ui/09a.layout-avalonia",{"title":1417,"path":1418,"stem":1419},"Button, Image, ProgressBar та інші базові контроли","/csharp/desktop-ui/basic-controls","01.csharp/12.desktop-ui/10.basic-controls",{"title":1421,"path":1422,"stem":1423},"Контроли в Avalonia: відмінності від WPF","/csharp/desktop-ui/10a.controls-avalonia","01.csharp/12.desktop-ui/10a.controls-avalonia",{"title":1425,"path":1426,"stem":1427},"Текстові контроли — TextBlock, TextBox, RichTextBox","/csharp/desktop-ui/text-controls","01.csharp/12.desktop-ui/11.text-controls",{"title":1429,"path":1430,"stem":1431},"Контроли вибору — CheckBox, RadioButton, ComboBox, ListBox, DatePicker","/csharp/desktop-ui/selection-controls","01.csharp/12.desktop-ui/12.selection-controls",{"title":1433,"path":1434,"stem":1435},"Content Model — GroupBox, Expander, TabControl, StatusBar","/csharp/desktop-ui/content-controls","01.csharp/12.desktop-ui/13.content-controls",{"title":1437,"path":1438,"stem":1439},"UI/UX принципи десктопних застосунків","/csharp/desktop-ui/13a.ui-ux-principles","01.csharp/12.desktop-ui/13a.ui-ux-principles",{"title":1441,"path":1442,"stem":1443},"Dependency Properties — Концепція та Value Resolution","/csharp/desktop-ui/dependency-properties-part1","01.csharp/12.desktop-ui/14.dependency-properties-part1",{"title":1445,"path":1446,"stem":1447},"Avalonia Property System — StyledProperty та DirectProperty","/csharp/desktop-ui/14a.avalonia-property-system","01.csharp/12.desktop-ui/14a.avalonia-property-system",{"title":1449,"path":1450,"stem":1451},"Attached Properties — Властивості без меж","/csharp/desktop-ui/attached-properties","01.csharp/12.desktop-ui/15.attached-properties",{"title":1453,"path":1454,"stem":1455},"Routed Events — Маршрутизація подій у WPF","/csharp/desktop-ui/routed-events","01.csharp/12.desktop-ui/16.routed-events",{"title":1457,"path":1458,"stem":1459},"Data Binding — Від Code-Behind до Декларативності","/csharp/desktop-ui/data-binding-basics-part1","01.csharp/12.desktop-ui/17.data-binding-basics-part1",{"title":1461,"path":1462,"stem":1463},"INotifyPropertyChanged — Живе оновлення UI","/csharp/desktop-ui/data-binding-basics-part2","01.csharp/12.desktop-ui/17.data-binding-basics-part2",{"title":1465,"path":1466,"stem":1467},"Compiled Bindings в Avalonia — Безпека на етапі компіляції","/csharp/desktop-ui/17a.avalonia-compiled-bindings","01.csharp/12.desktop-ui/17a.avalonia-compiled-bindings",{"title":1469,"path":1470,"stem":1471},"Просунутий Data Binding — ElementName, RelativeSource, MultiBinding","/csharp/desktop-ui/data-binding-advanced","01.csharp/12.desktop-ui/18.data-binding-advanced",{"title":1473,"path":1474,"stem":1475},"Value Converters — Перетворення типів даних у Data Binding","/csharp/desktop-ui/value-converters","01.csharp/12.desktop-ui/19.value-converters",{"title":1477,"path":1478,"stem":1479},"Data Templates — Візуалізація об'єктів у WPF","/csharp/desktop-ui/data-templates","01.csharp/12.desktop-ui/20.data-templates",{"title":1481,"path":1482,"stem":1483},"Collections Binding Part 1 — ObservableCollection та ItemsControl","/csharp/desktop-ui/collections-binding-part1","01.csharp/12.desktop-ui/21.collections-binding-part1",{"title":1485,"path":1486,"stem":1487},"Collections Binding Part 2 — ICollectionView, Filtering, Sorting та Virtualization","/csharp/desktop-ui/collections-binding-part2","01.csharp/12.desktop-ui/21.collections-binding-part2",{"title":1489,"path":1490,"stem":1491},"MVVM Pattern — Від Spaghetti Code до архітектури","/csharp/desktop-ui/mvvm-pattern","01.csharp/12.desktop-ui/22.mvvm-pattern",{"title":1493,"path":1494,"stem":1495},"ViewModel Implementation — Від BaseViewModel до валідації","/csharp/desktop-ui/viewmodel-implementation","01.csharp/12.desktop-ui/23.viewmodel-implementation",{"title":1497,"path":1498,"stem":1499},"Commands — Від event handlers до декларативних команд","/csharp/desktop-ui/commands","01.csharp/12.desktop-ui/24.commands",{"title":1501,"path":1502,"stem":1503},"MVVM Toolkit — MVVM без boilerplate через Source Generators","/csharp/desktop-ui/mvvm-toolkit","01.csharp/12.desktop-ui/25.mvvm-toolkit",{"title":1505,"path":1506,"stem":1507},"Messenger Pattern — Комунікація між ViewModel без прямих посилань","/csharp/desktop-ui/messenger-pattern","01.csharp/12.desktop-ui/26.messenger-pattern",{"title":1509,"path":1510,"stem":1511},"Стилі WPF — CSS для десктопу","/csharp/desktop-ui/styles-basics","01.csharp/12.desktop-ui/27.styles-basics",{"title":1513,"path":1514,"stem":1515},"CSS-like стилі Avalonia","/csharp/desktop-ui/27a.avalonia-css-styling","01.csharp/12.desktop-ui/27a.avalonia-css-styling",{"title":1517,"path":1518,"stem":1519},"Control Templates — Частина 1. Концепція та TemplateBinding","/csharp/desktop-ui/control-templates-part1","01.csharp/12.desktop-ui/28.control-templates-part1",{"title":1521,"path":1522,"stem":1523},"Control Templates — Частина 2. Named Parts та ContentPresenter","/csharp/desktop-ui/control-templates-part2","01.csharp/12.desktop-ui/28.control-templates-part2",{"title":1525,"path":1526,"stem":1527},"Control Themes в Avalonia — нова ера стилізації","/csharp/desktop-ui/28a.avalonia-control-themes","01.csharp/12.desktop-ui/28a.avalonia-control-themes",{"title":1529,"path":1530,"stem":1531},"Triggers та Visual State Manager у WPF","/csharp/desktop-ui/triggers-visual-states","01.csharp/12.desktop-ui/29.triggers-visual-states",{"title":1533,"path":1534,"stem":1535},"Pseudo-classes в Avalonia — замість WPF Triggers","/csharp/desktop-ui/29a.avalonia-pseudo-classes","01.csharp/12.desktop-ui/29a.avalonia-pseudo-classes",{"title":1537,"path":1538,"stem":1539},"Теми та ресурсні словники у WPF","/csharp/desktop-ui/resources-themes","01.csharp/12.desktop-ui/30.resources-themes",{"title":1541,"path":1542,"stem":1543},"Avalonia Themes — Fluent Design та система тематизації","/csharp/desktop-ui/30a.avalonia-themes-fluent","01.csharp/12.desktop-ui/30a.avalonia-themes-fluent",{"title":1545,"path":1546,"stem":1547},"Контроли колекцій — глибоке занурення","/csharp/desktop-ui/collection-controls","01.csharp/12.desktop-ui/31.collection-controls",{"title":1549,"path":1550,"stem":1551},"DataGrid — колонки та базове відображення","/csharp/desktop-ui/datagrid-part1","01.csharp/12.desktop-ui/32.datagrid-part1",{"title":1553,"path":1554,"stem":1555},"DataGrid — сортування, фільтрація, редагування","/csharp/desktop-ui/datagrid-part2","01.csharp/12.desktop-ui/32.datagrid-part2",{"title":1557,"path":1558,"stem":1559},"TreeView та GridView","/csharp/desktop-ui/treeview-listview","01.csharp/12.desktop-ui/33.treeview-listview",{"title":1561,"path":1562,"stem":1563},"Меню, Toolbar, ContextMenu, StatusBar","/csharp/desktop-ui/menus-toolbars","01.csharp/12.desktop-ui/34.menus-toolbars",{"title":1565,"path":1566,"stem":1567},"Навігація та керування вікнами. Частина 1: вікна та сторінки","/csharp/desktop-ui/navigation-windows-part1","01.csharp/12.desktop-ui/35.navigation-windows-part1",{"title":1569,"path":1570,"stem":1571},"Навігація та керування вікнами. Частина 2: MVVM-навігація","/csharp/desktop-ui/navigation-windows-part2","01.csharp/12.desktop-ui/35.navigation-windows-part2",{"title":1573,"path":1574,"stem":1575},"Avalonia — Навігація та діалоги","/csharp/desktop-ui/35a.avalonia-navigation-dialogs","01.csharp/12.desktop-ui/35a.avalonia-navigation-dialogs",{"title":1577,"path":1578,"stem":1579},"Діалоги та File Pickers у WPF","/csharp/desktop-ui/dialogs-file-pickers","01.csharp/12.desktop-ui/36.dialogs-file-pickers",{"title":1581,"path":1582,"stem":1583},"UserControl: компонентний підхід у WPF","/csharp/desktop-ui/user-controls","01.csharp/12.desktop-ui/37.user-controls",{"title":1585,"path":1586,"stem":1587},"Custom Controls: Lookless Controls у WPF","/csharp/desktop-ui/custom-controls","01.csharp/12.desktop-ui/38.custom-controls",{"title":1589,"path":1590,"stem":1591},"Avalonia TemplatedControl — Lookless Controls","/csharp/desktop-ui/38a.avalonia-templated-controls","01.csharp/12.desktop-ui/38a.avalonia-templated-controls",{"title":1593,"path":1594,"stem":1595},"Анімації у WPF: Storyboard та Easing Functions","/csharp/desktop-ui/animations-transitions","01.csharp/12.desktop-ui/39.animations-transitions",{"title":1597,"path":1598,"stem":1599},"Анімації в Avalonia","/csharp/desktop-ui/39a.avalonia-animations","01.csharp/12.desktop-ui/39a.avalonia-animations",{"title":1601,"path":1602,"stem":1603},"2D Графіка та Мультимедіа у WPF","/csharp/desktop-ui/media-graphics","01.csharp/12.desktop-ui/40.media-graphics",{"title":1605,"path":1606,"stem":1607},"Dependency Injection у WPF та Avalonia","/csharp/desktop-ui/di-integration","01.csharp/12.desktop-ui/41.di-integration",{"title":1609,"path":1610,"stem":1611},"SQLite та EF Core у десктопних додатках","/csharp/desktop-ui/data-persistence-part1","01.csharp/12.desktop-ui/42.data-persistence-part1",{"title":1613,"path":1614,"stem":1615},"Repository Pattern та Unit of Work","/csharp/desktop-ui/data-persistence-part2","01.csharp/12.desktop-ui/43.data-persistence-part2",{"title":1617,"path":1618,"stem":1619},"Тестування ViewModels","/csharp/desktop-ui/viewmodel-testing","01.csharp/12.desktop-ui/44.viewmodel-testing",{"title":1621,"path":1622,"stem":1623},"Avalonia Headless Testing — тестування UI без вікон","/csharp/desktop-ui/44a.avalonia-headless-testing","01.csharp/12.desktop-ui/44a.avalonia-headless-testing",{"title":1625,"path":1626,"stem":1627},"Кросплатформна розробка з Avalonia","/csharp/desktop-ui/avalonia-cross-platform","01.csharp/12.desktop-ui/45.avalonia-cross-platform",{"title":1629,"path":1630,"stem":1631},"Пакування та розгортання Avalonia додатків","/csharp/desktop-ui/avalonia-packaging-deployment","01.csharp/12.desktop-ui/46.avalonia-packaging-deployment",{"title":1633,"path":1634,"stem":1635},"Розгортання WPF застосунків","/csharp/desktop-ui/wpf-packaging-deployment","01.csharp/12.desktop-ui/47.wpf-packaging-deployment",{"title":1637,"path":1638,"stem":1639},"C# & .NET: The Ultimate Roadmap","/csharp/roadmap","01.csharp/roadmap",{"title":1641,"icon":1642,"path":1643,"stem":1644,"children":1645,"page":59},"C++","i-devicon-cplusplus","/cpp","02.cpp",[1646,1650,1654,1658,1662,1666,1670,1674,1678,1681,1685,1689,1693,1697,1701,1705,1709,1713,1717,1721,1725,1729,1733,1737,1741,1745,1749,1753,1757,1761],{"title":1647,"path":1648,"stem":1649},"Вступ у програмування та алгоритми","/cpp/intro-algorithms","02.cpp/01.intro-algorithms",{"title":1651,"path":1652,"stem":1653},"Code Style: угоди про оформлення коду","/cpp/code-style","02.cpp/02.code-style",{"title":1655,"path":1656,"stem":1657},"Середовище розробки та перший 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типу void","/cpp/void-pointers","02.cpp/20.void-pointers",{"title":1726,"path":1727,"stem":1728},"Вказівники на вказівники","/cpp/pointers-to-pointers","02.cpp/21.pointers-to-pointers",{"title":1730,"path":1731,"stem":1732},"Оператор доступу до членів через вказівник (->)","/cpp/member-access-operator","02.cpp/22.member-access-operator",{"title":1734,"path":1735,"stem":1736},"Цикл for-each (Range-based for)","/cpp/foreach-loop","02.cpp/23.foreach-loop",{"title":1738,"path":1739,"stem":1740},"Вказівники на функції","/cpp/function-pointers","02.cpp/24.function-pointers",{"title":1742,"path":1743,"stem":1744},"Лямбда-вирази","/cpp/lambdas","02.cpp/25.lambdas",{"title":1746,"path":1747,"stem":1748},"Лямбда-захоплення","/cpp/lambda-captures","02.cpp/26.lambda-captures",{"title":1750,"path":1751,"stem":1752},"Еліпсис","/cpp/ellipsis","02.cpp/27.ellipsis",{"title":1754,"path":1755,"stem":1756},"Аргументи командного рядка","/cpp/command-line-arguments","02.cpp/28.command-line-arguments",{"title":1758,"path":1759,"stem":1760},"Перерахування (enum)","/cpp/enum","02.cpp/29.enum",{"title":1762,"path":1763,"stem":1764},"План навчання: Курс C++ — Продовження (Статті 29–60+)","/cpp/curriculum-plan","02.cpp/curriculum-plan",{"title":1766,"icon":1767,"path":1768,"stem":1769,"children":1770,"page":59},"JavaScript","i-devicon-javascript","/javascript","03.javascript",[1771,1797,1851,1873,2177,2215],{"title":1772,"icon":1773,"path":1774,"stem":1775,"children":1776,"page":59},"Events","i-lucide-mouse-pointer-click","/javascript/events","03.javascript/01.events",[1777,1781,1785,1789,1793],{"title":1778,"path":1779,"stem":1780},"Вступ до подій браузера","/javascript/events/intro","03.javascript/01.events/01.intro",{"title":1782,"path":1783,"stem":1784},"Бульбашковий механізм (Bubbling) та занурення (Capturing)","/javascript/events/bubbling-capturing","03.javascript/01.events/02.bubbling-capturing",{"title":1786,"path":1787,"stem":1788},"Делегування подій (Event Delegation)","/javascript/events/delegate-events","03.javascript/01.events/03.delegate-events",{"title":1790,"path":1791,"stem":1792},"Типові дії браузера та preventDefault()","/javascript/events/prevent-default","03.javascript/01.events/04.prevent-default",{"title":1794,"path":1795,"stem":1796},"Запуск користувацьких подій (Custom Events)","/javascript/events/custom-events","03.javascript/01.events/05.custom-events",{"title":1798,"icon":1799,"path":1800,"stem":1801,"children":1802,"page":59},"Network","i-lucide-globe","/javascript/network","03.javascript/02.network",[1803,1807,1811,1815,1819,1823,1827,1831,1835,1839,1843,1847],{"title":1804,"path":1805,"stem":1806},"Fetch API - Сучасний підхід до HTTP-запитів","/javascript/network/01-fetch-api","03.javascript/02.network/01-fetch-api",{"title":1808,"path":1809,"stem":1810},"FormData - Робота з формами та файлами","/javascript/network/02-formdata","03.javascript/02.network/02-formdata",{"title":1812,"path":1813,"stem":1814},"Відстеження прогресу завантаження","/javascript/network/03-download-progress","03.javascript/02.network/03-download-progress",{"title":1816,"path":1817,"stem":1818},"Переривання fetch-запитів","/javascript/network/04-abort-requests","03.javascript/02.network/04-abort-requests",{"title":1820,"path":1821,"stem":1822},"CORS - Запити між різними джерелами","/javascript/network/05-cors","03.javascript/02.network/05-cors",{"title":1824,"path":1825,"stem":1826},"Fetch API - Повний довідник опцій","/javascript/network/06-fetch-options","03.javascript/02.network/06-fetch-options",{"title":1828,"path":1829,"stem":1830},"URL Objects - Робота з посиланнями","/javascript/network/07-url-objects","03.javascript/02.network/07-url-objects",{"title":1832,"path":1833,"stem":1834},"XMLHttpRequest - AJAX та низькорівневі запити","/javascript/network/08-xmlhttprequest","03.javascript/02.network/08-xmlhttprequest",{"title":1836,"path":1837,"stem":1838},"Відновлюване завантаження файлів","/javascript/network/09-resumable-upload","03.javascript/02.network/09-resumable-upload",{"title":1840,"path":1841,"stem":1842},"Cookies, document.cookie та світ після \"Cookiepocalypse\"","/javascript/network/10-cookies","03.javascript/02.network/10-cookies",{"title":1844,"path":1845,"stem":1846},"js-cookie: Керування Cookies без Болю","/javascript/network/11-js-cookie","03.javascript/02.network/11-js-cookie",{"title":1848,"path":1849,"stem":1850},"Axios: Потужний HTTP-клієнт для JavaScript","/javascript/network/12-axios","03.javascript/02.network/12-axios",{"title":1852,"icon":1853,"path":1854,"stem":1855,"children":1856,"page":59},"Bom","i-lucide-monitor","/javascript/bom","03.javascript/03.bom",[1857,1861,1865,1869],{"title":1858,"path":1859,"stem":1860},"LocalStorage, SessionStorage та patterns збереження даних","/javascript/bom/01-localstorage","03.javascript/03.bom/01-localstorage",{"title":1862,"path":1863,"stem":1864},"Location Object - Керування адресою сторінки","/javascript/bom/02-location-object","03.javascript/03.bom/02-location-object",{"title":1866,"path":1867,"stem":1868},"History API - Керування історією браузера","/javascript/bom/03-history-api","03.javascript/03.bom/03-history-api",{"title":1870,"path":1871,"stem":1872},"Navigator Object - Ідентифікація та Можливості Пристрою","/javascript/bom/04-navigator-object","03.javascript/03.bom/04-navigator-object",{"title":1874,"icon":1875,"path":1876,"stem":1877,"children":1878},"React","i-devicon-react","/javascript/react","03.javascript/04.react/index",[1879,1880,1884,1888,1892,1896,1959,1994,2146],{"title":1874,"path":1876,"stem":1877},{"title":1881,"path":1882,"stem":1883},"Робота з Формами в React","/javascript/react/react-forms","03.javascript/04.react/01.react-forms",{"title":1885,"path":1886,"stem":1887},"React Hook Form: Професійна Робота з Формами","/javascript/react/react-hook-form","03.javascript/04.react/02.react-hook-form",{"title":1889,"path":1890,"stem":1891},"React Hook Form: Глибоке Розуміння Архітектури та Оптимізації","/javascript/react/react-hook-form-new","03.javascript/04.react/02.react-hook-form-new",{"title":1893,"path":1894,"stem":1895},"Axios та React: Професійна Архітектура Запитів","/javascript/react/data-fetching-axios","03.javascript/04.react/03.data-fetching-axios",{"title":1897,"icon":132,"path":1898,"stem":1899,"children":1900},"Tanstack Query","/javascript/react/tanstack-query","03.javascript/04.react/04.tanstack-query/index",[1901,1903,1907,1911,1915,1919,1923,1927,1931,1935,1939,1943,1947,1951,1955],{"title":1902,"path":1898,"stem":1899},"TanStack Query: Майстерність Керування Станом Сервера",{"title":1904,"path":1905,"stem":1906},"Парадигма Server State: Чому useEffect недостатньо","/javascript/react/tanstack-query/server-state-paradigm","03.javascript/04.react/04.tanstack-query/01.server-state-paradigm",{"title":1908,"path":1909,"stem":1910},"Встановлення та Налаштування: Фундамент","/javascript/react/tanstack-query/installation-and-devtools","03.javascript/04.react/04.tanstack-query/02.installation-and-devtools",{"title":1912,"path":1913,"stem":1914},"Основи Запитів та Магія Ключів","/javascript/react/tanstack-query/query-basics-and-keys","03.javascript/04.react/04.tanstack-query/03.query-basics-and-keys",{"title":1916,"path":1917,"stem":1918},"Синхронізація Даних: Життєвий Цикл Запиту","/javascript/react/tanstack-query/data-synchronization","03.javascript/04.react/04.tanstack-query/04.data-synchronization",{"title":1920,"path":1921,"stem":1922},"Мутації та Інвалідація: Зміна Даних","/javascript/react/tanstack-query/mutations-and-invalidation","03.javascript/04.react/04.tanstack-query/05.mutations-and-invalidation",{"title":1924,"path":1925,"stem":1926},"Оптимістичні Оновлення: Швидше за Світло","/javascript/react/tanstack-query/optimistic-updates","03.javascript/04.react/04.tanstack-query/06.optimistic-updates",{"title":1928,"path":1929,"stem":1930},"Пагінація та Infinite Scroll","/javascript/react/tanstack-query/pagination-and-load-more","03.javascript/04.react/04.tanstack-query/07.pagination-and-load-more",{"title":1932,"path":1933,"stem":1934},"Просунуті Патерни та Оптимізація","/javascript/react/tanstack-query/advanced-patterns","03.javascript/04.react/04.tanstack-query/08.advanced-patterns",{"title":1936,"path":1937,"stem":1938},"Архітектура та Best Practices","/javascript/react/tanstack-query/architecture-and-best-practices","03.javascript/04.react/04.tanstack-query/09.architecture-and-best-practices",{"title":1940,"path":1941,"stem":1942},"Server-Side Rendering (SSR) та Гідратація","/javascript/react/tanstack-query/server-side-rendering","03.javascript/04.react/04.tanstack-query/10.server-side-rendering",{"title":1944,"path":1945,"stem":1946},"Стратегії Тестування","/javascript/react/tanstack-query/testing-strategies","03.javascript/04.react/04.tanstack-query/11.testing-strategies",{"title":1948,"path":1949,"stem":1950},"Аутентифікація та Обробка Помилок","/javascript/react/tanstack-query/authentication-and-errors","03.javascript/04.react/04.tanstack-query/12.authentication-and-errors",{"title":1952,"path":1953,"stem":1954},"React Suspense та Майбутнє","/javascript/react/tanstack-query/react-suspense","03.javascript/04.react/04.tanstack-query/13.react-suspense",{"title":1956,"path":1957,"stem":1958},"Глибоке Занурення в Продуктивність","/javascript/react/tanstack-query/performance-deep-dive","03.javascript/04.react/04.tanstack-query/14.performance-deep-dive",{"title":1960,"icon":1875,"path":1961,"stem":1962,"children":1963},"React Router","/javascript/react/react-router","03.javascript/04.react/05.react-router/index",[1964,1966,1970,1974,1978,1982,1986,1990],{"title":1965,"path":1961,"stem":1962},"React Router: Навігаційна система сучасного вебу",{"title":1967,"path":1968,"stem":1969},"Налаштування та Базовий Роутинг","/javascript/react/react-router/setup-and-basic-routing","03.javascript/04.react/05.react-router/01.setup-and-basic-routing",{"title":1971,"path":1972,"stem":1973},"Динамічна Навігація","/javascript/react/react-router/navigation-and-links","03.javascript/04.react/05.react-router/02.navigation-and-links",{"title":1975,"path":1976,"stem":1977},"Вкладені Маршрути та Макети","/javascript/react/react-router/nested-routes-and-layouts","03.javascript/04.react/05.react-router/03.nested-routes-and-layouts",{"title":1979,"path":1980,"stem":1981},"Динамічні Маршрути та Параметри","/javascript/react/react-router/dynamic-routing","03.javascript/04.react/05.react-router/04.dynamic-routing",{"title":1983,"path":1984,"stem":1985},"Data APIs: Loaders та Actions","/javascript/react/react-router/data-loading","03.javascript/04.react/05.react-router/05.data-loading",{"title":1987,"path":1988,"stem":1989},"Просунуті Патерни","/javascript/react/react-router/advanced-patterns","03.javascript/04.react/05.react-router/06.advanced-patterns",{"title":1991,"path":1992,"stem":1993},"Legacy Routing: Компонентний підхід","/javascript/react/react-router/legacy-routing","03.javascript/04.react/05.react-router/07.legacy-routing",{"title":1995,"icon":132,"path":1996,"stem":1997,"children":1998},"Redux","/javascript/react/redux","03.javascript/04.react/06.redux/index",[1999,2001,2017,2046,2055,2076,2092,2121],{"title":2000,"path":1996,"stem":1997},"Redux: Еволюція управління станом",{"title":14,"icon":15,"path":2002,"stem":2003,"children":2004,"page":59},"/javascript/react/redux/fundamentals","03.javascript/04.react/06.redux/01.fundamentals",[2005,2009,2013],{"title":2006,"path":2007,"stem":2008},"Вступ до State Management","/javascript/react/redux/fundamentals/intro-state-management","03.javascript/04.react/06.redux/01.fundamentals/01.intro-state-management",{"title":2010,"path":2011,"stem":2012},"Філософія Redux та Три Принципи","/javascript/react/redux/fundamentals/redux-philosophy","03.javascript/04.react/06.redux/01.fundamentals/02.redux-philosophy",{"title":2014,"path":2015,"stem":2016},"Чисті функції та Іммутабельність","/javascript/react/redux/fundamentals/pure-functions-immutability","03.javascript/04.react/06.redux/01.fundamentals/03.pure-functions-immutability",{"title":2018,"icon":132,"path":2019,"stem":2020,"children":2021,"page":59},"Classic Redux","/javascript/react/redux/classic-redux","03.javascript/04.react/06.redux/02.classic-redux",[2022,2026,2030,2034,2038,2042],{"title":2023,"path":2024,"stem":2025},"Створення Store (Classic Redux)","/javascript/react/redux/classic-redux/store-setup","03.javascript/04.react/06.redux/02.classic-redux/01.store-setup",{"title":2027,"path":2028,"stem":2029},"Actions, Constants та Action Creators","/javascript/react/redux/classic-redux/actions-constants","03.javascript/04.react/06.redux/02.classic-redux/02.actions-constants",{"title":2031,"path":2032,"stem":2033},"Логіка Reducers","/javascript/react/redux/classic-redux/reducers","03.javascript/04.react/06.redux/02.classic-redux/03.reducers",{"title":2035,"path":2036,"stem":2037},"Комбінування Reducers (Root Reducer)","/javascript/react/redux/classic-redux/data-flow","03.javascript/04.react/06.redux/02.classic-redux/04.data-flow",{"title":2039,"path":2040,"stem":2041},"Підключення до React (React-Redux)","/javascript/react/redux/classic-redux/react-redux-connection","03.javascript/04.react/06.redux/02.classic-redux/05.react-redux-connection",{"title":2043,"path":2044,"stem":2045},"Middleware та Асинхронність (Redux Thunk)","/javascript/react/redux/classic-redux/middleware-thunk","03.javascript/04.react/06.redux/02.classic-redux/06.middleware-thunk",{"title":2047,"icon":132,"path":2048,"stem":2049,"children":2050,"page":59},"Transition To Rtk","/javascript/react/redux/transition-to-rtk","03.javascript/04.react/06.redux/03.transition-to-rtk",[2051],{"title":2052,"path":2053,"stem":2054},"Проблеми класичного Redux","/javascript/react/redux/transition-to-rtk/problems-with-classic","03.javascript/04.react/06.redux/03.transition-to-rtk/01.problems-with-classic",{"title":2056,"icon":132,"path":2057,"stem":2058,"children":2059,"page":59},"Redux Toolkit","/javascript/react/redux/redux-toolkit","03.javascript/04.react/06.redux/04.redux-toolkit",[2060,2064,2068,2072],{"title":2061,"path":2062,"stem":2063},"Налаштування Store з 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дружити","/java/pr2/impedance-mismatch","04.java/pr2/09.impedance-mismatch",{"title":2285,"path":2286,"stem":2287},"JDBC: Перший контакт із базою даних","/java/pr2/jdbc-fundamentals","04.java/pr2/10.jdbc-fundamentals",{"title":2289,"path":2290,"stem":2291},"Якість коду: Spotless, SpotBugs та SonarQube","/java/pr2/10a.code-quality","04.java/pr2/10a.code-quality",{"title":2293,"path":2294,"stem":2295},"Connection Pool: Патерн Object Pool для JDBC-з'єднань","/java/pr2/connection-pool","04.java/pr2/11.connection-pool",{"title":2297,"path":2298,"stem":2299},"Row Data Gateway: Об'єкт як обгортка рядка таблиці","/java/pr2/row-data-gateway","04.java/pr2/12.row-data-gateway",{"title":2301,"path":2302,"stem":2303},"Table Data Gateway: Фасад таблиці як архітектурний відступ","/java/pr2/table-data-gateway","04.java/pr2/13.table-data-gateway",{"title":2305,"path":2306,"stem":2307},"Repository + Data Mapper: Правильна шарова архітектура з JDBC","/java/pr2/repository-data-mapper","04.java/pr2/14.repository-data-mapper",{"title":2309,"path":2310,"stem":2311},"Identity Map: Кешування сутностей у рамках сесії","/java/pr2/identity-map","04.java/pr2/15.identity-map",{"title":2313,"path":2314,"stem":2315},"Unit of Work: Відстеження змін і координація JDBC-транзакцій","/java/pr2/unit-of-work","04.java/pr2/16.unit-of-work",{"title":2317,"path":2318,"stem":2319},"Strategy: Замінювані SQL-стратегії для підтримки різних СУБД","/java/pr2/strategy-sql","04.java/pr2/17.strategy-sql",{"title":2321,"path":2322,"stem":2323},"Proxy: Lazy Loading для One-To-Many колекцій","/java/pr2/proxy-lazy-loading","04.java/pr2/18.proxy-lazy-loading",{"title":2325,"path":2326,"stem":2327},"Generic Repository через Java Reflection: анотації та динамічний SQL","/java/pr2/generic-repository-reflection","04.java/pr2/19.generic-repository-reflection",{"title":2329,"path":2330,"stem":2331},"Specification Pattern: Композиція бізнес-правил для складних 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БД","/databases/intro/logical-schema","06.databases/01.intro/04.logical-schema",{"title":2381,"path":2382,"stem":2383},"Класифікація таблиць","/databases/intro/table-classification","06.databases/01.intro/05.table-classification",{"title":2385,"path":2386,"stem":2387},"PlantUML для баз даних","/databases/intro/plantuml-diagrams","06.databases/01.intro/06.plantuml-diagrams",{"title":2389,"icon":2354,"path":2390,"stem":2391,"children":2392,"page":59},"MS SQL Server Start","/databases/ms-sql-server-start","06.databases/02.ms-sql-server-start",[2393,2397,2403,2407],{"title":2394,"path":2395,"stem":2396},"Типи даних у MS SQL Server","/databases/ms-sql-server-start/data-types","06.databases/02.ms-sql-server-start/01.data-types",{"title":2398,"path":2399,"stem":2400,"children":2401},"Індекси у MS SQL 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TABLE)","/databases/sql/ddl-create-table","06.databases/03.sql/01.ddl-create-table",{"title":2425,"path":2426,"stem":2427},"DDL - Зміна та видалення таблиць (ALTER, DROP)","/databases/sql/ddl-alter-drop-table","06.databases/03.sql/02.ddl-alter-drop-table",{"title":2429,"path":2430,"stem":2431},"SELECT запити - Основи","/databases/sql/select-queries-fundamentals","06.databases/03.sql/03.select-queries-fundamentals",{"title":2433,"path":2434,"stem":2435},"SELECT запити - Розширені можливості","/databases/sql/select-queries-advanced","06.databases/03.sql/04.select-queries-advanced",{"title":2437,"path":2438,"stem":2439},"INSERT запити - Додавання даних","/databases/sql/insert-queries","06.databases/03.sql/05.insert-queries",{"title":2441,"path":2442,"stem":2443},"UPDATE та DELETE запити","/databases/sql/update-delete-queries","06.databases/03.sql/06.update-delete-queries",{"title":2445,"path":2446,"stem":2447},"Транзакції в SQL","/databases/sql/transactions","06.databases/03.sql/07.transactions",{"title":2449,"icon":2354,"path":2450,"stem":2451,"children":2452,"page":59},"Multi Table Databases","/databases/multi-table-databases","06.databases/04.multi-table-databases",[2453,2457,2461,2465,2469,2473],{"title":2454,"path":2455,"stem":2456},"Зв'язки та нормалізація БД","/databases/multi-table-databases/relationships-and-normalization","06.databases/04.multi-table-databases/00.relationships-and-normalization",{"title":2458,"path":2459,"stem":2460},"INNER JOIN - З'єднання таблиць","/databases/multi-table-databases/inner-join","06.databases/04.multi-table-databases/01.inner-join",{"title":2462,"path":2463,"stem":2464},"OUTER JOINs - LEFT, RIGHT, FULL","/databases/multi-table-databases/outer-joins","06.databases/04.multi-table-databases/02.outer-joins",{"title":2466,"path":2467,"stem":2468},"CROSS та SELF JOINs","/databases/multi-table-databases/cross-self-joins","06.databases/04.multi-table-databases/03.cross-self-joins",{"title":2470,"path":2471,"stem":2472},"Підзапити (Subqueries)","/databases/multi-table-databases/subqueries","06.databases/04.multi-table-databases/04.subqueries",{"title":2474,"path":2475,"stem":2476},"Агрегації з JOIN","/databases/multi-table-databases/aggregations-with-joins","06.databases/04.multi-table-databases/05.aggregations-with-joins",{"title":2478,"icon":2479,"path":2480,"stem":2481,"children":2482,"page":59},"Aggregate Functions","i-lucide-calculator","/databases/aggregate-functions","06.databases/05.aggregate-functions",[2483,2487,2491],{"title":2484,"path":2485,"stem":2486},"Функції агрегування в MS SQL Server","/databases/aggregate-functions/introduction-aggregate-functions","06.databases/05.aggregate-functions/01.introduction-aggregate-functions",{"title":2488,"path":2489,"stem":2490},"Групування даних в MS SQL Server","/databases/aggregate-functions/grouping-data","06.databases/05.aggregate-functions/02.grouping-data",{"title":2492,"path":2493,"stem":2494},"Підзапити з агрегатними функціями","/databases/aggregate-functions/subqueries-aggregates","06.databases/05.aggregate-functions/03.subqueries-aggregates",{"title":2496,"icon":2497,"path":2498,"stem":2499,"children":2500,"page":59},"Тригери та зберігаємі процедури","i-lucide-database-zap","/databases/triggers-stored-procedures","06.databases/07.triggers-stored-procedures",[2501,2505,2509,2513,2517,2521,2525],{"title":2502,"path":2503,"stem":2504},"DML-тригери","/databases/triggers-stored-procedures/dml-triggers","06.databases/07.triggers-stored-procedures/01.dml-triggers",{"title":2506,"path":2507,"stem":2508},"DDL-тригери","/databases/triggers-stored-procedures/ddl-triggers","06.databases/07.triggers-stored-procedures/02.ddl-triggers",{"title":2510,"path":2511,"stem":2512},"Transact-SQL 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Частина 2","/html-css/css-layout-grid-advanced","12.html-css/16.css-layout-grid-advanced",{"title":2861,"path":2862,"stem":2863},"Позиціонування в CSS. Z-index. Stacking Context","/html-css/css-positioning","12.html-css/17.css-positioning",{"title":2865,"path":2866,"stem":2867},"CSS Анімації та Переходи","/html-css/css-animations-transitions","12.html-css/18.css-animations-transitions",{"title":2869,"path":2870,"stem":2871},"Адаптивний дизайн. Media Queries. Частина 1","/html-css/css-responsive-media-queries","12.html-css/19.css-responsive-media-queries",{"title":2873,"path":2874,"stem":2875},"Адаптивний дизайн. Частина 2: clamp(), Container Queries, @layer","/html-css/css-responsive-advanced","12.html-css/20.css-responsive-advanced",{"title":2877,"path":2878,"stem":2879},"CSS Custom Properties. Методології. Сучасний CSS","/html-css/css-variables-methodologies","12.html-css/21.css-variables-methodologies",{"title":2881,"path":2882,"stem":2883},"Сучасний CSS 2023–2025: Нові можливості","/html-css/css-modern-features","12.html-css/22.css-modern-features",{"title":2885,"path":2886,"stem":2887},"CSS Nesting, @layer, @scope та @property: нативний препроцесор","/html-css/22a.css-nesting-modern-syntax","12.html-css/22a.css-nesting-modern-syntax",{"title":2889,"path":2890,"stem":2891},"CSS для форм та інтерактивних станів","/html-css/css-forms-interactive-states","12.html-css/23.css-forms-interactive-states",{"title":2893,"path":2894,"stem":2895},"Доступність у CSS (CSS Accessibility)","/html-css/css-accessibility","12.html-css/24.css-accessibility",{"title":2897,"path":2898,"stem":2899},"CSS-функції та сучасні sizing primitives","/html-css/css-functions-sizing","12.html-css/25.css-functions-sizing",{"title":2901,"path":2902,"stem":2903},"Rendering Pipeline і CSS Performance","/html-css/css-rendering-performance","12.html-css/26.css-rendering-performance",{"title":2905,"path":2906,"stem":2907},"CSS Best Practices: типові ситуації та правильні рішення","/html-css/css-best-practices","12.html-css/27.css-best-practices",{"title":2909,"path":2910,"stem":2911,"children":2912,"page":59},"Tailwind","/tailwind","21.tailwind",[2913,2917,2921,2925,2929,2933,2937,2941],{"title":2914,"path":2915,"stem":2916},"Що таке Tailwind CSS і навіщо він потрібен","/tailwind/tailwind-intro-philosophy","21.tailwind/01.tailwind-intro-philosophy",{"title":2918,"path":2919,"stem":2920},"Встановлення та налаштування Tailwind CSS v4","/tailwind/tailwind-installation-setup","21.tailwind/02.tailwind-installation-setup",{"title":2922,"path":2923,"stem":2924},"Utility-класи: основи та система Tailwind","/tailwind/tailwind-utility-classes-core","21.tailwind/03.tailwind-utility-classes-core",{"title":2926,"path":2927,"stem":2928},"Layout: Flexbox та Grid через Tailwind","/tailwind/tailwind-flexbox-grid","21.tailwind/04.tailwind-flexbox-grid",{"title":2930,"path":2931,"stem":2932},"Кастомізація теми через @theme у Tailwind v4","/tailwind/tailwind-theme-customization","21.tailwind/05.tailwind-theme-customization",{"title":2934,"path":2935,"stem":2936},"Варіанти: hover, focus, responsive, dark mode та нові v4","/tailwind/tailwind-variants-states","21.tailwind/06.tailwind-variants-states",{"title":2938,"path":2939,"stem":2940},"Типографіка та система кольорів у Tailwind v4","/tailwind/tailwind-typography-colors","21.tailwind/07.tailwind-typography-colors",{"title":2942,"path":2943,"stem":2944},"Компоненти та повторюваність: @apply, @utility та патерни","/tailwind/tailwind-components-patterns","21.tailwind/08.tailwind-components-patterns",{"title":2946,"path":2947,"stem":2948},"Showcase Компонентів kostyl.dev","/test-new-components","98.test-new-components",{"id":2950,"title":2273,"body":2951,"description":8409,"extension":8410,"links":8411,"meta":8412,"navigation":3467,"path":2274,"seo":8413,"stem":2275,"__hash__":8414},"docs/04.java/pr2/06.database-migrations.md",{"type":2952,"value":2953,"toc":8355},"minimark",[2954,2958,2963,2988,2995,3006,3012,3056,3059,3063,3068,3075,3204,3207,3211,3215,3235,3241,3252,3256,3259,3267,3272,3322,3325,3331,3342,3344,3348,3351,3355,3583,3587,3594,3600,3616,3620,3623,4071,4176,4180,4183,4244,4247,4258,4260,4264,4287,4298,4302,4305,4314,4335,4338,4485,4492,4496,4555,4559,4566,5831,5840,5842,5846,5861,5865,5872,5925,5932,5939,5956,5990,6000,6170,6185,6200,6204,6288,6290,6294,6297,6301,6308,6378,6398,6412,6416,6427,6663,6673,6677,6688,6822,6832,6836,6850,6901,6923,6927,6930,6947,6950,6954,7058,7062,7072,7076,7152,7156,7162,7711,7724,7734,7740,8029,8048,8050,8054,8284,8286,8290,8296,8302,8327,8344,8351],[2955,2956,2273],"h1",{"id":2957},"database-migrations-версіонування-схеми-з-flyway",[2959,2960,2962],"h2",{"id":2961},"вступ-схема-це-не-статичний-артефакт","Вступ: Схема — це не статичний артефакт",[2964,2965,2966,2967,2971,2972,2975,2976,2979,2980,2983,2984,2987],"p",{},"Уявіть команду, що розробляє аудіоплатформу. Три розробники. Перший додає таблицю ",[2968,2969,2970],"code",{},"reviews",". Другий — стовпець ",[2968,2973,2974],{},"language"," до ",[2968,2977,2978],{},"audiobooks",". Третій перейменовує ",[2968,2981,2982],{},"listening_progresses.position"," на ",[2968,2985,2986],{},"position_seconds"," для ясності.",[2964,2989,2990,2991,2994],{},"Без системного підходу ці зміни потраплять до схеми хаотично: хтось виконає ",[2968,2992,2993],{},"ALTER TABLE"," у консолі локального H2, хтось напише нотатку у чат, а хтось просто забуде синхронізувати розробницьке середовище з тестовим. Щойно проєкт виходить за межі одного розробника — ручне управління схемою стає джерелом нескінченних помилок.",[2964,2996,2997,3001,3002,3005],{},[2998,2999,3000],"strong",{},"Міграція схеми"," (Schema Migration) — це підхід, при якому кожна зміна структури бази даних оформлюється як ",[2998,3003,3004],{},"версіонований, атомарний скрипт",", що зберігається разом із кодом у системі контролю версій (Git) і виконується автоматично. Схема еволюціонує контрольовано, кожна зміна — відтворювана і зворотно сумісна з іншими середовищами.",[2964,3007,3008,3011],{},[2998,3009,3010],{},"Flyway"," — провідний інструмент міграцій для JVM-екосистеми. Він прозорий у роботі, легко підключається до будь-якого Java-проєкту через Maven, Gradle або напряму через API, і підтримує H2, PostgreSQL, MySQL, Oracle та ще десятки СУБД.",[3013,3014,3015,3038],"card-group",{},[3016,3017,3020],"card",{"icon":3018,"title":3019},"i-heroicons-x-circle","Без міграцій — хаос",[3021,3022,3023,3027,3030,3033],"ul",{},[3024,3025,3026],"li",{},"Схема у кожного розробника різна",[3024,3028,3029],{},"Переведення на новий сервер — ручна робота",[3024,3031,3032],{},"Неможливо відтворити стан схеми місячної давнини",[3024,3034,3035,3037],{},[2968,3036,2993],{}," в prod — виконується вручну, з ризиком помилки",[3016,3039,3042],{"icon":3040,"title":3041},"i-heroicons-check-circle","З Flyway — порядок",[3021,3043,3044,3047,3050,3053],{},[3024,3045,3046],{},"Кожна зміна схеми — SQL-файл у Git",[3024,3048,3049],{},"Flyway застосовує міграції автоматично при старті",[3024,3051,3052],{},"Стан схеми відтворюється на будь-якому середовищі",[3024,3054,3055],{},"Версія схеми синхронізована з версією коду",[3057,3058],"hr",{},[2959,3060,3062],{"id":3061},"ключові-концепції-flyway","Ключові концепції Flyway",[3064,3065,3067],"h3",{"id":3066},"таблиця-версій-schema-history-table","Таблиця версій (Schema History Table)",[2964,3069,3070,3071,3074],{},"При першому запуску Flyway автоматично створює у вашій базі спеціальну таблицю — ",[2968,3072,3073],{},"flyway_schema_history",". Вона зберігає інформацію про кожну виконану міграцію:",[3076,3077,3082],"pre",{"className":3078,"code":3079,"language":3080,"meta":3081,"style":3081},"language-sql shiki shiki-themes light-plus dark-plus dark-plus","-- Структура flyway_schema_history (спрощено)\nflyway_schema_history(\n    installed_rank INTEGER,   -- порядковий номер виконання\n    version        VARCHAR,   -- версія: '1', '1.1', '2' тощо\n    description    VARCHAR,   -- опис з назви файлу\n    type           VARCHAR,   -- 'SQL' або 'JAVA'\n    script         VARCHAR,   -- назва файлу міграції\n    checksum       INTEGER,   -- контрольна сума файлу\n    success        BOOLEAN    -- чи виконана успішно\n)\n","sql","",[2968,3083,3084,3093,3100,3116,3130,3144,3158,3172,3186,3198],{"__ignoreMap":3081},[3085,3086,3089],"span",{"class":3087,"line":3088},"line",1,[3085,3090,3092],{"class":3091},"spJ8K","-- Структура flyway_schema_history (спрощено)\n",[3085,3094,3096],{"class":3087,"line":3095},2,[3085,3097,3099],{"class":3098},"sHH4Y","flyway_schema_history(\n",[3085,3101,3103,3106,3110,3113],{"class":3087,"line":3102},3,[3085,3104,3105],{"class":3098},"    installed_rank ",[3085,3107,3109],{"class":3108},"su1O8","INTEGER",[3085,3111,3112],{"class":3098},",   ",[3085,3114,3115],{"class":3091},"-- порядковий номер виконання\n",[3085,3117,3119,3122,3125,3127],{"class":3087,"line":3118},4,[3085,3120,3121],{"class":3108},"    version",[3085,3123,3124],{"class":3108},"        VARCHAR",[3085,3126,3112],{"class":3098},[3085,3128,3129],{"class":3091},"-- версія: '1', '1.1', '2' тощо\n",[3085,3131,3133,3136,3139,3141],{"class":3087,"line":3132},5,[3085,3134,3135],{"class":3108},"    description",[3085,3137,3138],{"class":3108},"    VARCHAR",[3085,3140,3112],{"class":3098},[3085,3142,3143],{"class":3091},"-- опис з назви файлу\n",[3085,3145,3147,3150,3153,3155],{"class":3087,"line":3146},6,[3085,3148,3149],{"class":3108},"    type",[3085,3151,3152],{"class":3108},"           VARCHAR",[3085,3154,3112],{"class":3098},[3085,3156,3157],{"class":3091},"-- 'SQL' або 'JAVA'\n",[3085,3159,3161,3164,3167,3169],{"class":3087,"line":3160},7,[3085,3162,3163],{"class":3098},"    script         ",[3085,3165,3166],{"class":3108},"VARCHAR",[3085,3168,3112],{"class":3098},[3085,3170,3171],{"class":3091},"-- назва файлу міграції\n",[3085,3173,3175,3178,3181,3183],{"class":3087,"line":3174},8,[3085,3176,3177],{"class":3108},"    checksum",[3085,3179,3180],{"class":3108},"       INTEGER",[3085,3182,3112],{"class":3098},[3085,3184,3185],{"class":3091},"-- контрольна сума файлу\n",[3085,3187,3189,3192,3195],{"class":3087,"line":3188},9,[3085,3190,3191],{"class":3098},"    success        ",[3085,3193,3194],{"class":3108},"BOOLEAN",[3085,3196,3197],{"class":3091},"    -- чи виконана успішно\n",[3085,3199,3201],{"class":3087,"line":3200},10,[3085,3202,3203],{"class":3098},")\n",[2964,3205,3206],{},"Перш ніж виконати будь-яку міграцію, Flyway перевіряє цю таблицю і розуміє, які версії вже застосовані, а які — ні.",[3064,3208,3210],{"id":3209},"три-типи-міграцій","Три типи міграцій",[3212,3213,3214],"note",{},"Flyway розрізняє три принципово різні типи міграційних скриптів, кожен для своїх завдань.",[2964,3216,3217,3220,3221,3224,3225,3228,3229,3228,3231,3234],{},[2998,3218,3219],{},"1. Versioned Migrations"," (версіоновані) — основний тип. Виконуються рівно ",[2998,3222,3223],{},"один раз"," у порядку зростання версії. Ідеальні для DDL-змін: ",[2968,3226,3227],{},"CREATE TABLE",", ",[2968,3230,2993],{},[2968,3232,3233],{},"DROP TABLE",".",[2964,3236,3237,3240],{},[2998,3238,3239],{},"2. Repeatable Migrations"," (повторювані) — виконуються щоразу, коли змінюється їх вміст (контрольна сума). Ідеальні для Views, Stored Procedures, початкових даних-довідників.",[2964,3242,3243,3246,3247,3251],{},[2998,3244,3245],{},"3. Undo Migrations"," (відкочування) ",[3248,3249,3250],"em",{},"(тільки у Flyway Teams/Enterprise)"," — дозволяють скасувати попередню версіоновану міграцію. У безкоштовній версії скасування реалізується через нову «вперед» міграцію.",[3064,3253,3255],{"id":3254},"naming-convention-найважливіше-правило","Naming Convention: Найважливіше правило",[2964,3257,3258],{},"Flyway розпізнає тип і версію міграції виключно за іменем файлу. Шаблон суворий:",[3076,3260,3265],{"className":3261,"code":3263,"language":3264},[3262],"language-text","V{version}__{description}.sql          ← Versioned\nR__{description}.sql                   ← Repeatable\nU{version}__{description}.sql          ← Undo (Teams)\n","text",[2968,3266,3263],{"__ignoreMap":3081},[2964,3268,3269],{},[2998,3270,3271],{},"Правила:",[3021,3273,3274,3284,3301,3312,3315],{},[3024,3275,3276,3279,3280,3283],{},[2968,3277,3278],{},"V"," та ",[2968,3281,3282],{},"U"," — великі латинські літери.",[3024,3285,3286,3287,3228,3290,3293,3294,3228,3297,3300],{},"Версія може бути цілим числом (",[2968,3288,3289],{},"1",[2968,3291,3292],{},"2",") або крапковим (",[2968,3295,3296],{},"1.1",[2968,3298,3299],{},"2.3.1",").",[3024,3302,3303,3304,3307,3308,3311],{},"Між версією та описом — ",[2998,3305,3306],{},"два підкреслення"," (",[2968,3309,3310],{},"__","). Не одне, не три — два.",[3024,3313,3314],{},"Опис у назві файлу може містити слова та одиночні підкреслення.",[3024,3316,3317,3318,3321],{},"Розширення файлу: ",[2968,3319,3320],{},".sql"," для SQL-міграцій.",[2964,3323,3324],{},"Коректні приклади:",[3076,3326,3329],{"className":3327,"code":3328,"language":3264},[3262],"V1__initial_schema.sql\nV2__add_reviews_table.sql\nV2_1__add_language_to_audiobooks.sql\nV3__rename_position_column.sql\nR__seed_genres.sql\nR__seed_subscription_plans.sql\n",[2968,3330,3328],{"__ignoreMap":3081},[3332,3333,3334,3337,3338,3341],"caution",{},[2998,3335,3336],{},"Забороняється змінювати вміст вже виконаної версіонованої міграції."," Flyway зберігає контрольну суму (checksum) кожного файлу. Якщо після виконання міграції ",[2968,3339,3340],{},"V2__...sql"," її вміст змінити — Flyway виявить розбіжність і відмовиться стартувати. Це захист від «тихих» модифікацій схеми у виробництві.",[3057,3343],{},[2959,3345,3347],{"id":3346},"підключення-flyway-до-java-проєкту","Підключення Flyway до Java-проєкту",[2964,3349,3350],{},"Flyway підключається до проєкту як бібліотека і запускається програмно — при старті додатку або через Maven/Gradle плагін. Розглянемо підключення для чистого Java-проєкту (без Spring), що використовує H2.",[3064,3352,3354],{"id":3353},"_1-залежності","1. Залежності",[3356,3357,3358,3553],"tabs",{},[3359,3360,3362],"tabs-item",{"label":3361},"Maven (pom.xml)",[3076,3363,3367],{"className":3364,"code":3365,"language":3366,"meta":3081,"style":3081},"language-xml shiki shiki-themes light-plus dark-plus dark-plus","\u003Cdependencies>\n    \u003C!-- Flyway core — обов'язкова -->\n    \u003Cdependency>\n        \u003CgroupId>org.flywaydb\u003C/groupId>\n        \u003CartifactId>flyway-core\u003C/artifactId>\n        \u003Cversion>10.15.0\u003C/version>\n    \u003C/dependency>\n\n    \u003C!-- H2 — вбудована СУБД для розробки/тестування -->\n    \u003Cdependency>\n        \u003CgroupId>com.h2database\u003C/groupId>\n        \u003CartifactId>h2\u003C/artifactId>\n        \u003Cversion>2.3.232\u003C/version>\n    \u003C/dependency>\n\u003C/dependencies>\n","xml",[2968,3368,3369,3382,3387,3397,3418,3436,3454,3463,3469,3474,3482,3500,3517,3535,3544],{"__ignoreMap":3081},[3085,3370,3371,3375,3379],{"class":3087,"line":3088},[3085,3372,3374],{"class":3373},"s0P7L","\u003C",[3085,3376,3378],{"class":3377},"sKtos","dependencies",[3085,3380,3381],{"class":3373},">\n",[3085,3383,3384],{"class":3087,"line":3095},[3085,3385,3386],{"class":3091},"    \u003C!-- Flyway core — обов'язкова -->\n",[3085,3388,3389,3392,3395],{"class":3087,"line":3102},[3085,3390,3391],{"class":3373},"    \u003C",[3085,3393,3394],{"class":3377},"dependency",[3085,3396,3381],{"class":3373},[3085,3398,3399,3402,3405,3408,3411,3414,3416],{"class":3087,"line":3118},[3085,3400,3401],{"class":3373},"        \u003C",[3085,3403,3404],{"class":3377},"groupId",[3085,3406,3407],{"class":3373},">",[3085,3409,3410],{"class":3098},"org.flywaydb",[3085,3412,3413],{"class":3373},"\u003C/",[3085,3415,3404],{"class":3377},[3085,3417,3381],{"class":3373},[3085,3419,3420,3422,3425,3427,3430,3432,3434],{"class":3087,"line":3132},[3085,3421,3401],{"class":3373},[3085,3423,3424],{"class":3377},"artifactId",[3085,3426,3407],{"class":3373},[3085,3428,3429],{"class":3098},"flyway-core",[3085,3431,3413],{"class":3373},[3085,3433,3424],{"class":3377},[3085,3435,3381],{"class":3373},[3085,3437,3438,3440,3443,3445,3448,3450,3452],{"class":3087,"line":3146},[3085,3439,3401],{"class":3373},[3085,3441,3442],{"class":3377},"version",[3085,3444,3407],{"class":3373},[3085,3446,3447],{"class":3098},"10.15.0",[3085,3449,3413],{"class":3373},[3085,3451,3442],{"class":3377},[3085,3453,3381],{"class":3373},[3085,3455,3456,3459,3461],{"class":3087,"line":3160},[3085,3457,3458],{"class":3373},"    \u003C/",[3085,3460,3394],{"class":3377},[3085,3462,3381],{"class":3373},[3085,3464,3465],{"class":3087,"line":3174},[3085,3466,3468],{"emptyLinePlaceholder":3467},true,"\n",[3085,3470,3471],{"class":3087,"line":3188},[3085,3472,3473],{"class":3091},"    \u003C!-- H2 — вбудована СУБД для розробки/тестування -->\n",[3085,3475,3476,3478,3480],{"class":3087,"line":3200},[3085,3477,3391],{"class":3373},[3085,3479,3394],{"class":3377},[3085,3481,3381],{"class":3373},[3085,3483,3485,3487,3489,3491,3494,3496,3498],{"class":3087,"line":3484},11,[3085,3486,3401],{"class":3373},[3085,3488,3404],{"class":3377},[3085,3490,3407],{"class":3373},[3085,3492,3493],{"class":3098},"com.h2database",[3085,3495,3413],{"class":3373},[3085,3497,3404],{"class":3377},[3085,3499,3381],{"class":3373},[3085,3501,3503,3505,3507,3509,3511,3513,3515],{"class":3087,"line":3502},12,[3085,3504,3401],{"class":3373},[3085,3506,3424],{"class":3377},[3085,3508,3407],{"class":3373},[3085,3510,2959],{"class":3098},[3085,3512,3413],{"class":3373},[3085,3514,3424],{"class":3377},[3085,3516,3381],{"class":3373},[3085,3518,3520,3522,3524,3526,3529,3531,3533],{"class":3087,"line":3519},13,[3085,3521,3401],{"class":3373},[3085,3523,3442],{"class":3377},[3085,3525,3407],{"class":3373},[3085,3527,3528],{"class":3098},"2.3.232",[3085,3530,3413],{"class":3373},[3085,3532,3442],{"class":3377},[3085,3534,3381],{"class":3373},[3085,3536,3538,3540,3542],{"class":3087,"line":3537},14,[3085,3539,3458],{"class":3373},[3085,3541,3394],{"class":3377},[3085,3543,3381],{"class":3373},[3085,3545,3547,3549,3551],{"class":3087,"line":3546},15,[3085,3548,3413],{"class":3373},[3085,3550,3378],{"class":3377},[3085,3552,3381],{"class":3373},[3359,3554,3556],{"label":3555},"Gradle (build.gradle.kts)",[3076,3557,3561],{"className":3558,"code":3559,"language":3560,"meta":3081,"style":3081},"language-kotlin shiki shiki-themes light-plus dark-plus dark-plus","dependencies {\n    implementation(\"org.flywaydb:flyway-core:10.15.0\")\n    implementation(\"com.h2database:h2:2.3.232\")\n}\n","kotlin",[2968,3562,3563,3568,3573,3578],{"__ignoreMap":3081},[3085,3564,3565],{"class":3087,"line":3088},[3085,3566,3567],{},"dependencies {\n",[3085,3569,3570],{"class":3087,"line":3095},[3085,3571,3572],{},"    implementation(\"org.flywaydb:flyway-core:10.15.0\")\n",[3085,3574,3575],{"class":3087,"line":3102},[3085,3576,3577],{},"    implementation(\"com.h2database:h2:2.3.232\")\n",[3085,3579,3580],{"class":3087,"line":3118},[3085,3581,3582],{},"}\n",[3064,3584,3586],{"id":3585},"_2-структура-директорій","2. Структура директорій",[2964,3588,3589,3590,3593],{},"За замовчуванням Flyway шукає SQL-скрипти у директорії ",[2968,3591,3592],{},"classpath:db/migration",". У Maven/Gradle-проєкті це відповідає:",[3076,3595,3598],{"className":3596,"code":3597,"language":3264},[3262],"src/\n└── main/\n    ├── java/\n    │   └── com/example/audiobook/\n    │       └── Main.java\n    └── resources/\n        └── db/\n            └── migration/              ← тут живуть всі міграції\n                ├── V1__initial_schema.sql\n                ├── V2__add_reviews.sql\n                ├── V3__add_language_to_audiobooks.sql\n                └── R__seed_genres.sql\n",[2968,3599,3597],{"__ignoreMap":3081},[3601,3602,3603,3604,3607,3608,3611,3612,3615],"tip",{},"Директорію можна змінити через конфігурацію (",[2968,3605,3606],{},"locations","). Поширена практика для великих проєктів — використовувати кілька директорій: ",[2968,3609,3610],{},"db/migration"," для DDL та ",[2968,3613,3614],{},"db/seed"," для тестових даних.",[3064,3617,3619],{"id":3618},"_3-програмний-запуск","3. Програмний запуск",[2964,3621,3622],{},"Flyway запускається через builder API. Простий клас для ініціалізації БД:",[3076,3624,3628],{"className":3625,"code":3626,"language":3627,"meta":3081,"style":3081},"language-java shiki shiki-themes light-plus dark-plus dark-plus","import org.flywaydb.core.Flyway;\nimport javax.sql.DataSource;\nimport org.h2.jdbcx.JdbcDataSource;\n\npublic class DatabaseConfig {\n\n    public static DataSource createDataSource() {\n        // H2 у файловому режимі (дані зберігаються між запусками)\n        JdbcDataSource ds = new JdbcDataSource();\n        ds.setURL(\"jdbc:h2:./data/audiobook_db;MODE=PostgreSQL\");\n        ds.setUser(\"sa\");\n        ds.setPassword(\"\");\n        return ds;\n    }\n\n    public static void runMigrations(DataSource dataSource) {\n        Flyway flyway = Flyway.configure()\n            .dataSource(dataSource)\n            // Flyway шукатиме скрипти тут:\n            .locations(\"classpath:db/migration\")\n            // Дозволити виконання міграцій на порожній БД (без baseline):\n            .baselineOnMigrate(false)\n            // Не дозволяти виконання міграцій з майбутніх версій:\n            .outOfOrder(false)\n            .load();\n\n        // Виконати всі незастосовані міграції:\n        var result = flyway.migrate();\n        System.out.printf(\n            \"Flyway: applied %d migrations, current version: %s%n\",\n            result.migrationsExecuted,\n            result.targetSchemaVersion\n        );\n    }\n\n    public static DataSource initialize() {\n        DataSource ds = createDataSource();\n        runMigrations(ds);\n        return ds;\n    }\n}\n","java",[2968,3629,3630,3638,3645,3652,3656,3671,3675,3693,3698,3720,3740,3756,3772,3780,3785,3789,3813,3834,3846,3852,3866,3872,3887,3893,3907,3917,3922,3928,3949,3968,3977,3990,4000,4006,4011,4016,4030,4045,4054,4061,4066],{"__ignoreMap":3081},[3085,3631,3632,3635],{"class":3087,"line":3088},[3085,3633,3634],{"class":3108},"import",[3085,3636,3637],{"class":3098}," org.flywaydb.core.Flyway;\n",[3085,3639,3640,3642],{"class":3087,"line":3095},[3085,3641,3634],{"class":3108},[3085,3643,3644],{"class":3098}," javax.sql.DataSource;\n",[3085,3646,3647,3649],{"class":3087,"line":3102},[3085,3648,3634],{"class":3108},[3085,3650,3651],{"class":3098}," org.h2.jdbcx.JdbcDataSource;\n",[3085,3653,3654],{"class":3087,"line":3118},[3085,3655,3468],{"emptyLinePlaceholder":3467},[3085,3657,3658,3661,3664,3668],{"class":3087,"line":3132},[3085,3659,3660],{"class":3108},"public",[3085,3662,3663],{"class":3108}," class",[3085,3665,3667],{"class":3666},"sN1BT"," DatabaseConfig",[3085,3669,3670],{"class":3098}," {\n",[3085,3672,3673],{"class":3087,"line":3146},[3085,3674,3468],{"emptyLinePlaceholder":3467},[3085,3676,3677,3680,3683,3686,3690],{"class":3087,"line":3160},[3085,3678,3679],{"class":3108},"    public",[3085,3681,3682],{"class":3108}," static",[3085,3684,3685],{"class":3666}," DataSource",[3085,3687,3689],{"class":3688},"s8Opu"," createDataSource",[3085,3691,3692],{"class":3098},"() {\n",[3085,3694,3695],{"class":3087,"line":3174},[3085,3696,3697],{"class":3091},"        // H2 у файловому режимі (дані зберігаються між запусками)\n",[3085,3699,3700,3703,3707,3710,3714,3717],{"class":3087,"line":3188},[3085,3701,3702],{"class":3666},"        JdbcDataSource",[3085,3704,3706],{"class":3705},"siwwj"," ds",[3085,3708,3709],{"class":3098}," = ",[3085,3711,3713],{"class":3712},"sCDza","new",[3085,3715,3716],{"class":3688}," JdbcDataSource",[3085,3718,3719],{"class":3098},"();\n",[3085,3721,3722,3725,3727,3730,3733,3737],{"class":3087,"line":3200},[3085,3723,3724],{"class":3705},"        ds",[3085,3726,3234],{"class":3098},[3085,3728,3729],{"class":3688},"setURL",[3085,3731,3732],{"class":3098},"(",[3085,3734,3736],{"class":3735},"sbdoH","\"jdbc:h2:./data/audiobook_db;MODE=PostgreSQL\"",[3085,3738,3739],{"class":3098},");\n",[3085,3741,3742,3744,3746,3749,3751,3754],{"class":3087,"line":3484},[3085,3743,3724],{"class":3705},[3085,3745,3234],{"class":3098},[3085,3747,3748],{"class":3688},"setUser",[3085,3750,3732],{"class":3098},[3085,3752,3753],{"class":3735},"\"sa\"",[3085,3755,3739],{"class":3098},[3085,3757,3758,3760,3762,3765,3767,3770],{"class":3087,"line":3502},[3085,3759,3724],{"class":3705},[3085,3761,3234],{"class":3098},[3085,3763,3764],{"class":3688},"setPassword",[3085,3766,3732],{"class":3098},[3085,3768,3769],{"class":3735},"\"\"",[3085,3771,3739],{"class":3098},[3085,3773,3774,3777],{"class":3087,"line":3519},[3085,3775,3776],{"class":3712},"        return",[3085,3778,3779],{"class":3098}," ds;\n",[3085,3781,3782],{"class":3087,"line":3537},[3085,3783,3784],{"class":3098},"    }\n",[3085,3786,3787],{"class":3087,"line":3546},[3085,3788,3468],{"emptyLinePlaceholder":3467},[3085,3790,3792,3794,3796,3799,3802,3804,3807,3810],{"class":3087,"line":3791},16,[3085,3793,3679],{"class":3108},[3085,3795,3682],{"class":3108},[3085,3797,3798],{"class":3666}," void",[3085,3800,3801],{"class":3688}," runMigrations",[3085,3803,3732],{"class":3098},[3085,3805,3806],{"class":3666},"DataSource",[3085,3808,3809],{"class":3705}," dataSource",[3085,3811,3812],{"class":3098},") {\n",[3085,3814,3816,3819,3822,3824,3826,3828,3831],{"class":3087,"line":3815},17,[3085,3817,3818],{"class":3666},"        Flyway",[3085,3820,3821],{"class":3705}," flyway",[3085,3823,3709],{"class":3098},[3085,3825,3010],{"class":3705},[3085,3827,3234],{"class":3098},[3085,3829,3830],{"class":3688},"configure",[3085,3832,3833],{"class":3098},"()\n",[3085,3835,3837,3840,3843],{"class":3087,"line":3836},18,[3085,3838,3839],{"class":3098},"            .",[3085,3841,3842],{"class":3688},"dataSource",[3085,3844,3845],{"class":3098},"(dataSource)\n",[3085,3847,3849],{"class":3087,"line":3848},19,[3085,3850,3851],{"class":3091},"            // Flyway шукатиме скрипти тут:\n",[3085,3853,3855,3857,3859,3861,3864],{"class":3087,"line":3854},20,[3085,3856,3839],{"class":3098},[3085,3858,3606],{"class":3688},[3085,3860,3732],{"class":3098},[3085,3862,3863],{"class":3735},"\"classpath:db/migration\"",[3085,3865,3203],{"class":3098},[3085,3867,3869],{"class":3087,"line":3868},21,[3085,3870,3871],{"class":3091},"            // Дозволити виконання міграцій на порожній БД (без baseline):\n",[3085,3873,3875,3877,3880,3882,3885],{"class":3087,"line":3874},22,[3085,3876,3839],{"class":3098},[3085,3878,3879],{"class":3688},"baselineOnMigrate",[3085,3881,3732],{"class":3098},[3085,3883,3884],{"class":3108},"false",[3085,3886,3203],{"class":3098},[3085,3888,3890],{"class":3087,"line":3889},23,[3085,3891,3892],{"class":3091},"            // Не дозволяти виконання міграцій з майбутніх версій:\n",[3085,3894,3896,3898,3901,3903,3905],{"class":3087,"line":3895},24,[3085,3897,3839],{"class":3098},[3085,3899,3900],{"class":3688},"outOfOrder",[3085,3902,3732],{"class":3098},[3085,3904,3884],{"class":3108},[3085,3906,3203],{"class":3098},[3085,3908,3910,3912,3915],{"class":3087,"line":3909},25,[3085,3911,3839],{"class":3098},[3085,3913,3914],{"class":3688},"load",[3085,3916,3719],{"class":3098},[3085,3918,3920],{"class":3087,"line":3919},26,[3085,3921,3468],{"emptyLinePlaceholder":3467},[3085,3923,3925],{"class":3087,"line":3924},27,[3085,3926,3927],{"class":3091},"        // Виконати всі незастосовані міграції:\n",[3085,3929,3931,3934,3937,3939,3942,3944,3947],{"class":3087,"line":3930},28,[3085,3932,3933],{"class":3108},"        var",[3085,3935,3936],{"class":3705}," result",[3085,3938,3709],{"class":3098},[3085,3940,3941],{"class":3705},"flyway",[3085,3943,3234],{"class":3098},[3085,3945,3946],{"class":3688},"migrate",[3085,3948,3719],{"class":3098},[3085,3950,3952,3955,3957,3960,3962,3965],{"class":3087,"line":3951},29,[3085,3953,3954],{"class":3705},"        System",[3085,3956,3234],{"class":3098},[3085,3958,3959],{"class":3705},"out",[3085,3961,3234],{"class":3098},[3085,3963,3964],{"class":3688},"printf",[3085,3966,3967],{"class":3098},"(\n",[3085,3969,3971,3974],{"class":3087,"line":3970},30,[3085,3972,3973],{"class":3735},"            \"Flyway: applied %d migrations, current version: %s%n\"",[3085,3975,3976],{"class":3098},",\n",[3085,3978,3980,3983,3985,3988],{"class":3087,"line":3979},31,[3085,3981,3982],{"class":3705},"            result",[3085,3984,3234],{"class":3098},[3085,3986,3987],{"class":3705},"migrationsExecuted",[3085,3989,3976],{"class":3098},[3085,3991,3993,3995,3997],{"class":3087,"line":3992},32,[3085,3994,3982],{"class":3705},[3085,3996,3234],{"class":3098},[3085,3998,3999],{"class":3705},"targetSchemaVersion\n",[3085,4001,4003],{"class":3087,"line":4002},33,[3085,4004,4005],{"class":3098},"        );\n",[3085,4007,4009],{"class":3087,"line":4008},34,[3085,4010,3784],{"class":3098},[3085,4012,4014],{"class":3087,"line":4013},35,[3085,4015,3468],{"emptyLinePlaceholder":3467},[3085,4017,4019,4021,4023,4025,4028],{"class":3087,"line":4018},36,[3085,4020,3679],{"class":3108},[3085,4022,3682],{"class":3108},[3085,4024,3685],{"class":3666},[3085,4026,4027],{"class":3688}," initialize",[3085,4029,3692],{"class":3098},[3085,4031,4033,4036,4038,4040,4043],{"class":3087,"line":4032},37,[3085,4034,4035],{"class":3666},"        DataSource",[3085,4037,3706],{"class":3705},[3085,4039,3709],{"class":3098},[3085,4041,4042],{"class":3688},"createDataSource",[3085,4044,3719],{"class":3098},[3085,4046,4048,4051],{"class":3087,"line":4047},38,[3085,4049,4050],{"class":3688},"        runMigrations",[3085,4052,4053],{"class":3098},"(ds);\n",[3085,4055,4057,4059],{"class":3087,"line":4056},39,[3085,4058,3776],{"class":3712},[3085,4060,3779],{"class":3098},[3085,4062,4064],{"class":3087,"line":4063},40,[3085,4065,3784],{"class":3098},[3085,4067,4069],{"class":3087,"line":4068},41,[3085,4070,3582],{"class":3098},[3076,4072,4074],{"className":3625,"code":4073,"language":3627,"meta":3081,"style":3081},"// Main.java — точка входу\npublic class Main {\n    public static void main(String[] args) {\n        // 1. Ініціалізуємо БД і запускаємо міграції:\n        DataSource dataSource = DatabaseConfig.initialize();\n\n        // 2. Далі — бізнес-логіка додатку\n        System.out.println(\"Application started. DB schema is up to date.\");\n    }\n}\n",[2968,4075,4076,4081,4092,4116,4121,4139,4143,4148,4168,4172],{"__ignoreMap":3081},[3085,4077,4078],{"class":3087,"line":3088},[3085,4079,4080],{"class":3091},"// Main.java — точка входу\n",[3085,4082,4083,4085,4087,4090],{"class":3087,"line":3095},[3085,4084,3660],{"class":3108},[3085,4086,3663],{"class":3108},[3085,4088,4089],{"class":3666}," Main",[3085,4091,3670],{"class":3098},[3085,4093,4094,4096,4098,4100,4103,4105,4108,4111,4114],{"class":3087,"line":3102},[3085,4095,3679],{"class":3108},[3085,4097,3682],{"class":3108},[3085,4099,3798],{"class":3666},[3085,4101,4102],{"class":3688}," main",[3085,4104,3732],{"class":3098},[3085,4106,4107],{"class":3666},"String",[3085,4109,4110],{"class":3098},"[] ",[3085,4112,4113],{"class":3705},"args",[3085,4115,3812],{"class":3098},[3085,4117,4118],{"class":3087,"line":3118},[3085,4119,4120],{"class":3091},"        // 1. Ініціалізуємо БД і запускаємо міграції:\n",[3085,4122,4123,4125,4127,4129,4132,4134,4137],{"class":3087,"line":3132},[3085,4124,4035],{"class":3666},[3085,4126,3809],{"class":3705},[3085,4128,3709],{"class":3098},[3085,4130,4131],{"class":3705},"DatabaseConfig",[3085,4133,3234],{"class":3098},[3085,4135,4136],{"class":3688},"initialize",[3085,4138,3719],{"class":3098},[3085,4140,4141],{"class":3087,"line":3146},[3085,4142,3468],{"emptyLinePlaceholder":3467},[3085,4144,4145],{"class":3087,"line":3160},[3085,4146,4147],{"class":3091},"        // 2. Далі — бізнес-логіка додатку\n",[3085,4149,4150,4152,4154,4156,4158,4161,4163,4166],{"class":3087,"line":3174},[3085,4151,3954],{"class":3705},[3085,4153,3234],{"class":3098},[3085,4155,3959],{"class":3705},[3085,4157,3234],{"class":3098},[3085,4159,4160],{"class":3688},"println",[3085,4162,3732],{"class":3098},[3085,4164,4165],{"class":3735},"\"Application started. DB schema is up to date.\"",[3085,4167,3739],{"class":3098},[3085,4169,4170],{"class":3087,"line":3188},[3085,4171,3784],{"class":3098},[3085,4173,4174],{"class":3087,"line":3200},[3085,4175,3582],{"class":3098},[3064,4177,4179],{"id":4178},"_4-h2-режими-роботи","4. H2 — режими роботи",[2964,4181,4182],{},"H2 підтримує кілька режимів, і вибір URL впливає на поведінку:",[4184,4185,4186,4202],"table",{},[4187,4188,4189],"thead",{},[4190,4191,4192,4196,4199],"tr",{},[4193,4194,4195],"th",{},"URL",[4193,4197,4198],{},"Режим",[4193,4200,4201],{},"Дані після рестарту",[4203,4204,4205,4219,4232],"tbody",{},[4190,4206,4207,4213,4216],{},[4208,4209,4210],"td",{},[2968,4211,4212],{},"jdbc:h2:mem:testdb",[4208,4214,4215],{},"In-memory",[4208,4217,4218],{},"❌ Зникають",[4190,4220,4221,4226,4229],{},[4208,4222,4223],{},[2968,4224,4225],{},"jdbc:h2:./data/mydb",[4208,4227,4228],{},"File-based (embedded)",[4208,4230,4231],{},"✅ Зберігаються",[4190,4233,4234,4239,4242],{},[4208,4235,4236],{},[2968,4237,4238],{},"jdbc:h2:tcp://localhost/~/mydb",[4208,4240,4241],{},"Server mode",[4208,4243,4231],{},[2964,4245,4246],{},"Для розробки і тестових запусків зручний файловий режим. Для unit-тестів — in-memory (кожен тест отримує чисту базу).",[3212,4248,4249,4250,4253,4254,4257],{},"Параметр ",[2968,4251,4252],{},"MODE=PostgreSQL"," у рядку підключення H2 вмикає режим сумісності з PostgreSQL: підтримується ENUM через ",[2968,4255,4256],{},"CREATE TYPE",", інший синтаксис операцій тощо. Це дозволяє писати міграції один раз і виконувати їх як на H2 (розробка/тести), так і на PostgreSQL (production) з мінімальними відмінностями.",[3057,4259],{},[2959,4261,4263],{"id":4262},"практика-перетворення-ddl-аудіоплатформи-на-міграції","Практика: Перетворення DDL аудіоплатформи на міграції",[2964,4265,4266,4267,4270,4271,2975,4273,4275,4276,4278,4279,2983,4282,4284,4285,3234],{},"У попередній статті (",[4268,4269,2265],"a",{"href":2266},") ми написали єдиний монолітний DDL-скрипт, що створює всі таблиці аудіоплатформи. З точки зору одноразового розгортання це прийнятно. Але уявіть: через місяць потрібно додати поле ",[2968,4272,2974],{},[2968,4274,2978],{},", ще через тиждень — таблицю ",[2968,4277,2970],{},", а потім — перейменувати стовпець ",[2968,4280,4281],{},"position",[2968,4283,2986],{}," для ясності. Якщо всі ці зміни вносити в один монолітний файл, команда втрачає здатність відтворювати проміжні стани схеми, а production-сервер потребує ручного виконання ",[2968,4286,2993],{},[2964,4288,4289,4290,4293,4294,4297],{},"Правильний підхід — ",[2998,4291,4292],{},"розбити початковий DDL на версійовані міграції"," і надалі кожну зміну оформлювати як окремий файл. Перша міграція (",[2968,4295,4296],{},"V1",") є «точкою відліку» — вона фіксує стан схеми на момент першого розгортання.",[3064,4299,4301],{"id":4300},"стратегія-декомпозиції","Стратегія декомпозиції",[2964,4303,4304],{},"При розбитті монолітного DDL на міграції Flyway важливо дотриматися двох принципів:",[2964,4306,4307,4310,4311,4313],{},[2998,4308,4309],{},"Принцип 1: Кожна міграція — атомарна одиниця змін."," Ідеальна міграція стосується однієї таблиці або одного логічного кроку (створення ENUM, потім таблиці, потім індексів). Це спрощує повторне читання журналу (",[2968,4312,3073],{},") і локалізацію проблем.",[2964,4315,4316,4319,4320,4322,4323,4326,4327,3307,4330,4332,4333,3300],{},[2998,4317,4318],{},"Принцип 2: Порядок міграцій відповідає порядку залежностей FK."," Flyway виконує міграції у зростаючому порядку версій, тому ",[2968,4321,4296],{}," (ENUM + ",[2968,4324,4325],{},"authors",") має передувати ",[2968,4328,4329],{},"V3",[2968,4331,2978],{},", яка посилається на ",[2968,4334,4325],{},[2964,4336,4337],{},"Для нашої схеми декомпозиція виглядає так:",[4184,4339,4340,4353],{},[4187,4341,4342],{},[4190,4343,4344,4347,4350],{},[4193,4345,4346],{},"Міграція",[4193,4348,4349],{},"Файл",[4193,4351,4352],{},"Зміст",[4203,4354,4355,4373,4389,4407,4422,4437,4453,4469],{},[4190,4356,4357,4359,4364],{},[4208,4358,4296],{},[4208,4360,4361],{},[2968,4362,4363],{},"V1__create_enum_and_authors.sql",[4208,4365,4366,4367,4370,4371],{},"ENUM ",[2968,4368,4369],{},"file_format_enum",", таблиця ",[2968,4372,4325],{},[4190,4374,4375,4378,4383],{},[4208,4376,4377],{},"V2",[4208,4379,4380],{},[2968,4381,4382],{},"V2__create_genres.sql",[4208,4384,4385,4386],{},"Таблиця ",[2968,4387,4388],{},"genres",[4190,4390,4391,4393,4398],{},[4208,4392,4329],{},[4208,4394,4395],{},[2968,4396,4397],{},"V3__create_users.sql",[4208,4399,4385,4400,4403,4404],{},[2968,4401,4402],{},"users",", індекс по ",[2968,4405,4406],{},"email",[4190,4408,4409,4412,4417],{},[4208,4410,4411],{},"V4",[4208,4413,4414],{},[2968,4415,4416],{},"V4__create_audiobooks.sql",[4208,4418,4385,4419,4421],{},[2968,4420,2978],{},", індекси по FK",[4190,4423,4424,4427,4432],{},[4208,4425,4426],{},"V5",[4208,4428,4429],{},[2968,4430,4431],{},"V5__create_collections.sql",[4208,4433,4385,4434],{},[2968,4435,4436],{},"collections",[4190,4438,4439,4442,4447],{},[4208,4440,4441],{},"V6",[4208,4443,4444],{},[2968,4445,4446],{},"V6__create_audiobook_collection.sql",[4208,4448,4449,4450],{},"Junction-таблиця ",[2968,4451,4452],{},"audiobook_collection",[4190,4454,4455,4458,4463],{},[4208,4456,4457],{},"V7",[4208,4459,4460],{},[2968,4461,4462],{},"V7__create_audiobook_files.sql",[4208,4464,4385,4465,4468],{},[2968,4466,4467],{},"audiobook_files",", індекс",[4190,4470,4471,4474,4479],{},[4208,4472,4473],{},"V8",[4208,4475,4476],{},[2968,4477,4478],{},"V8__create_listening_progresses.sql",[4208,4480,4385,4481,4484],{},[2968,4482,4483],{},"listening_progresses",", індекси",[3212,4486,4487,4488,4491],{},"Поділ на 8 окремих файлів може здатися надмірним для початкової схеми. На практиці деякі команди об'єднують незалежні таблиці в одну першу міграцію (",[2968,4489,4490],{},"V1__initial_schema.sql","). Обидва підходи правомірні. Детальна декомпозиція дає кращу читабельність журналу та простішу відладку конфліктів між версіями у великій команді.",[3064,4493,4495],{"id":4494},"структура-директорій-міграцій","Структура директорій міграцій",[4497,4498,4499,4506,4513,4520,4527,4534,4541,4548],"code-tree",{},[3076,4500,4504],{"className":4501,"code":4502,"filename":4503,"language":3264,"meta":3081},[3262],"-- Крок 1: ENUM-тип (має передувати audiobook_files)\n-- Крок 2: Таблиця authors (незалежна сутність)\n","src/main/resources/db/migration/V1__create_enum_and_authors.sql",[2968,4505,4502],{"__ignoreMap":3081},[3076,4507,4511],{"className":4508,"code":4509,"filename":4510,"language":3264,"meta":3081},[3262],"-- Таблиця genres (незалежна сутність)\n","src/main/resources/db/migration/V2__create_genres.sql",[2968,4512,4509],{"__ignoreMap":3081},[3076,4514,4518],{"className":4515,"code":4516,"filename":4517,"language":3264,"meta":3081},[3262],"-- Таблиця users + індекс по email\n","src/main/resources/db/migration/V3__create_users.sql",[2968,4519,4516],{"__ignoreMap":3081},[3076,4521,4525],{"className":4522,"code":4523,"filename":4524,"language":3264,"meta":3081},[3262],"-- Таблиця audiobooks (FK → authors, genres) + індекси\n","src/main/resources/db/migration/V4__create_audiobooks.sql",[2968,4526,4523],{"__ignoreMap":3081},[3076,4528,4532],{"className":4529,"code":4530,"filename":4531,"language":3264,"meta":3081},[3262],"-- Таблиця collections (FK → users)\n","src/main/resources/db/migration/V5__create_collections.sql",[2968,4533,4530],{"__ignoreMap":3081},[3076,4535,4539],{"className":4536,"code":4537,"filename":4538,"language":3264,"meta":3081},[3262],"-- Junction-таблиця audiobook_collection (FK → collections, audiobooks)\n","src/main/resources/db/migration/V6__create_audiobook_collection.sql",[2968,4540,4537],{"__ignoreMap":3081},[3076,4542,4546],{"className":4543,"code":4544,"filename":4545,"language":3264,"meta":3081},[3262],"-- Таблиця audiobook_files (FK → audiobooks) + індекс\n","src/main/resources/db/migration/V7__create_audiobook_files.sql",[2968,4547,4544],{"__ignoreMap":3081},[3076,4549,4553],{"className":4550,"code":4551,"filename":4552,"language":3264,"meta":3081},[3262],"-- Таблиця listening_progresses (FK → users, audiobooks) + індекси\n","src/main/resources/db/migration/V8__create_listening_progresses.sql",[2968,4554,4551],{"__ignoreMap":3081},[3064,4556,4558],{"id":4557},"покрокове-створення-міграцій","Покрокове створення міграцій",[2964,4560,4561,4562,4565],{},"Розглянемо зміст кожного файлу. Зверніть увагу: SQL-код у міграціях ",[2998,4563,4564],{},"ідентичний"," вмісту монолітного DDL-скрипту — змінюється лише спосіб організації файлів.",[4567,4568,4569,4575,4578,4754,4760,4848,4854,5029,5035,5044,5322,5326,5329],"steps",{},[3064,4570,4572,4573],{"id":4571},"крок-1-v1-enum-та-таблиця-authors","Крок 1: V1 — ENUM та таблиця ",[2968,4574,4325],{},[2964,4576,4577],{},"Перша міграція оголошує ENUM-тип і створює першу незалежну таблицю:",[3076,4579,4581],{"className":3078,"code":4580,"language":3080,"meta":3081,"style":3081},"-- V1__create_enum_and_authors.sql\n\n-- ENUM для форматів аудіофайлів.\n-- Оголошуємо першим, бо audiobook_files.format залежатиме від нього.\nCREATE TYPE file_format_enum AS ENUM ('mp3', 'ogg', 'wav', 'm4b', 'aac', 'flac');\n\n-- Таблиця авторів. Немає жодних FK — незалежна сутність.\nCREATE TABLE authors (\n    PRIMARY KEY (id),\n    id         UUID          NOT NULL,\n    first_name VARCHAR(64)   NOT NULL,\n    last_name  VARCHAR(64)   NOT NULL,\n    bio        TEXT,\n    image_path VARCHAR(2048)\n);\n",[2968,4582,4583,4588,4592,4597,4602,4649,4653,4658,4671,4679,4689,4709,4726,4736,4750],{"__ignoreMap":3081},[3085,4584,4585],{"class":3087,"line":3088},[3085,4586,4587],{"class":3091},"-- V1__create_enum_and_authors.sql\n",[3085,4589,4590],{"class":3087,"line":3095},[3085,4591,3468],{"emptyLinePlaceholder":3467},[3085,4593,4594],{"class":3087,"line":3102},[3085,4595,4596],{"class":3091},"-- ENUM для форматів аудіофайлів.\n",[3085,4598,4599],{"class":3087,"line":3118},[3085,4600,4601],{"class":3091},"-- Оголошуємо першим, бо audiobook_files.format залежатиме від нього.\n",[3085,4603,4604,4607,4610,4613,4616,4619,4622,4624,4627,4629,4632,4634,4637,4639,4642,4644,4647],{"class":3087,"line":3132},[3085,4605,4606],{"class":3108},"CREATE",[3085,4608,4609],{"class":3108}," TYPE",[3085,4611,4612],{"class":3688}," file_format_enum",[3085,4614,4615],{"class":3108}," AS",[3085,4617,4618],{"class":3098}," ENUM (",[3085,4620,4621],{"class":3735},"'mp3'",[3085,4623,3228],{"class":3098},[3085,4625,4626],{"class":3735},"'ogg'",[3085,4628,3228],{"class":3098},[3085,4630,4631],{"class":3735},"'wav'",[3085,4633,3228],{"class":3098},[3085,4635,4636],{"class":3735},"'m4b'",[3085,4638,3228],{"class":3098},[3085,4640,4641],{"class":3735},"'aac'",[3085,4643,3228],{"class":3098},[3085,4645,4646],{"class":3735},"'flac'",[3085,4648,3739],{"class":3098},[3085,4650,4651],{"class":3087,"line":3146},[3085,4652,3468],{"emptyLinePlaceholder":3467},[3085,4654,4655],{"class":3087,"line":3160},[3085,4656,4657],{"class":3091},"-- Таблиця авторів. Немає жодних FK — незалежна сутність.\n",[3085,4659,4660,4662,4665,4668],{"class":3087,"line":3174},[3085,4661,4606],{"class":3108},[3085,4663,4664],{"class":3108}," TABLE",[3085,4666,4667],{"class":3688}," authors",[3085,4669,4670],{"class":3098}," (\n",[3085,4672,4673,4676],{"class":3087,"line":3188},[3085,4674,4675],{"class":3108},"    PRIMARY KEY",[3085,4677,4678],{"class":3098}," (id),\n",[3085,4680,4681,4684,4687],{"class":3087,"line":3200},[3085,4682,4683],{"class":3098},"    id         UUID          ",[3085,4685,4686],{"class":3108},"NOT NULL",[3085,4688,3976],{"class":3098},[3085,4690,4691,4694,4696,4698,4702,4705,4707],{"class":3087,"line":3484},[3085,4692,4693],{"class":3098},"    first_name ",[3085,4695,3166],{"class":3108},[3085,4697,3732],{"class":3098},[3085,4699,4701],{"class":4700},"sJj4R","64",[3085,4703,4704],{"class":3098},")   ",[3085,4706,4686],{"class":3108},[3085,4708,3976],{"class":3098},[3085,4710,4711,4714,4716,4718,4720,4722,4724],{"class":3087,"line":3502},[3085,4712,4713],{"class":3098},"    last_name  ",[3085,4715,3166],{"class":3108},[3085,4717,3732],{"class":3098},[3085,4719,4701],{"class":4700},[3085,4721,4704],{"class":3098},[3085,4723,4686],{"class":3108},[3085,4725,3976],{"class":3098},[3085,4727,4728,4731,4734],{"class":3087,"line":3519},[3085,4729,4730],{"class":3098},"    bio        ",[3085,4732,4733],{"class":3108},"TEXT",[3085,4735,3976],{"class":3098},[3085,4737,4738,4741,4743,4745,4748],{"class":3087,"line":3537},[3085,4739,4740],{"class":3098},"    image_path ",[3085,4742,3166],{"class":3108},[3085,4744,3732],{"class":3098},[3085,4746,4747],{"class":4700},"2048",[3085,4749,3203],{"class":3098},[3085,4751,4752],{"class":3087,"line":3546},[3085,4753,3739],{"class":3098},[3064,4755,4757,4758],{"id":4756},"крок-2-v2-таблиця-genres","Крок 2: V2 — Таблиця ",[2968,4759,4388],{},[3076,4761,4763],{"className":3078,"code":4762,"language":3080,"meta":3081,"style":3081},"-- V2__create_genres.sql\n\nCREATE TABLE genres (\n    PRIMARY KEY (id),\n    id          UUID        NOT NULL,\n    name        VARCHAR(64) NOT NULL,\n                CONSTRAINT genres_name_key UNIQUE (name),\n    description TEXT\n);\n",[2968,4764,4765,4770,4774,4785,4791,4800,4818,4837,4844],{"__ignoreMap":3081},[3085,4766,4767],{"class":3087,"line":3088},[3085,4768,4769],{"class":3091},"-- V2__create_genres.sql\n",[3085,4771,4772],{"class":3087,"line":3095},[3085,4773,3468],{"emptyLinePlaceholder":3467},[3085,4775,4776,4778,4780,4783],{"class":3087,"line":3102},[3085,4777,4606],{"class":3108},[3085,4779,4664],{"class":3108},[3085,4781,4782],{"class":3688}," genres",[3085,4784,4670],{"class":3098},[3085,4786,4787,4789],{"class":3087,"line":3118},[3085,4788,4675],{"class":3108},[3085,4790,4678],{"class":3098},[3085,4792,4793,4796,4798],{"class":3087,"line":3132},[3085,4794,4795],{"class":3098},"    id          UUID        ",[3085,4797,4686],{"class":3108},[3085,4799,3976],{"class":3098},[3085,4801,4802,4805,4807,4809,4811,4814,4816],{"class":3087,"line":3146},[3085,4803,4804],{"class":3108},"    name",[3085,4806,3124],{"class":3108},[3085,4808,3732],{"class":3098},[3085,4810,4701],{"class":4700},[3085,4812,4813],{"class":3098},") ",[3085,4815,4686],{"class":3108},[3085,4817,3976],{"class":3098},[3085,4819,4820,4823,4826,4829,4831,4834],{"class":3087,"line":3160},[3085,4821,4822],{"class":3108},"                CONSTRAINT",[3085,4824,4825],{"class":3098}," genres_name_key ",[3085,4827,4828],{"class":3108},"UNIQUE",[3085,4830,3307],{"class":3098},[3085,4832,4833],{"class":3108},"name",[3085,4835,4836],{"class":3098},"),\n",[3085,4838,4839,4841],{"class":3087,"line":3174},[3085,4840,3135],{"class":3108},[3085,4842,4843],{"class":3108}," TEXT\n",[3085,4845,4846],{"class":3087,"line":3188},[3085,4847,3739],{"class":3098},[3064,4849,4851,4852],{"id":4850},"крок-3-v3-таблиця-users","Крок 3: V3 — Таблиця ",[2968,4853,4402],{},[3076,4855,4857],{"className":3078,"code":4856,"language":3080,"meta":3081,"style":3081},"-- V3__create_users.sql\n\nCREATE TABLE users (\n    PRIMARY KEY (id),\n    id            UUID         NOT NULL,\n    username      VARCHAR(64)  NOT NULL,\n                  CONSTRAINT users_username_key UNIQUE (username),\n                  CONSTRAINT users_username_not_empty_check\n                       CHECK (length(trim(username)) > 0),\n    password_hash VARCHAR(128) NOT NULL,\n    email         VARCHAR(376),\n    avatar_path   VARCHAR(2048)\n);\n\n-- Індекс на email: пришвидшує пошук при вході за email\nCREATE INDEX users_email_idx ON users(email);\n",[2968,4858,4859,4864,4868,4879,4885,4894,4912,4925,4932,4955,4973,4987,5000,5004,5008,5013],{"__ignoreMap":3081},[3085,4860,4861],{"class":3087,"line":3088},[3085,4862,4863],{"class":3091},"-- V3__create_users.sql\n",[3085,4865,4866],{"class":3087,"line":3095},[3085,4867,3468],{"emptyLinePlaceholder":3467},[3085,4869,4870,4872,4874,4877],{"class":3087,"line":3102},[3085,4871,4606],{"class":3108},[3085,4873,4664],{"class":3108},[3085,4875,4876],{"class":3688}," users",[3085,4878,4670],{"class":3098},[3085,4880,4881,4883],{"class":3087,"line":3118},[3085,4882,4675],{"class":3108},[3085,4884,4678],{"class":3098},[3085,4886,4887,4890,4892],{"class":3087,"line":3132},[3085,4888,4889],{"class":3098},"    id            UUID         ",[3085,4891,4686],{"class":3108},[3085,4893,3976],{"class":3098},[3085,4895,4896,4899,4901,4903,4905,4908,4910],{"class":3087,"line":3146},[3085,4897,4898],{"class":3098},"    username      ",[3085,4900,3166],{"class":3108},[3085,4902,3732],{"class":3098},[3085,4904,4701],{"class":4700},[3085,4906,4907],{"class":3098},")  ",[3085,4909,4686],{"class":3108},[3085,4911,3976],{"class":3098},[3085,4913,4914,4917,4920,4922],{"class":3087,"line":3160},[3085,4915,4916],{"class":3108},"                  CONSTRAINT",[3085,4918,4919],{"class":3098}," users_username_key ",[3085,4921,4828],{"class":3108},[3085,4923,4924],{"class":3098}," (username),\n",[3085,4926,4927,4929],{"class":3087,"line":3174},[3085,4928,4916],{"class":3108},[3085,4930,4931],{"class":3098}," users_username_not_empty_check\n",[3085,4933,4934,4937,4939,4942,4944,4947,4950,4953],{"class":3087,"line":3188},[3085,4935,4936],{"class":3108},"                       CHECK",[3085,4938,3307],{"class":3098},[3085,4940,4941],{"class":3108},"length",[3085,4943,3732],{"class":3098},[3085,4945,4946],{"class":3688},"trim",[3085,4948,4949],{"class":3098},"(username)) > ",[3085,4951,4952],{"class":4700},"0",[3085,4954,4836],{"class":3098},[3085,4956,4957,4960,4962,4964,4967,4969,4971],{"class":3087,"line":3200},[3085,4958,4959],{"class":3098},"    password_hash ",[3085,4961,3166],{"class":3108},[3085,4963,3732],{"class":3098},[3085,4965,4966],{"class":4700},"128",[3085,4968,4813],{"class":3098},[3085,4970,4686],{"class":3108},[3085,4972,3976],{"class":3098},[3085,4974,4975,4978,4980,4982,4985],{"class":3087,"line":3484},[3085,4976,4977],{"class":3098},"    email         ",[3085,4979,3166],{"class":3108},[3085,4981,3732],{"class":3098},[3085,4983,4984],{"class":4700},"376",[3085,4986,4836],{"class":3098},[3085,4988,4989,4992,4994,4996,4998],{"class":3087,"line":3502},[3085,4990,4991],{"class":3098},"    avatar_path   ",[3085,4993,3166],{"class":3108},[3085,4995,3732],{"class":3098},[3085,4997,4747],{"class":4700},[3085,4999,3203],{"class":3098},[3085,5001,5002],{"class":3087,"line":3519},[3085,5003,3739],{"class":3098},[3085,5005,5006],{"class":3087,"line":3537},[3085,5007,3468],{"emptyLinePlaceholder":3467},[3085,5009,5010],{"class":3087,"line":3546},[3085,5011,5012],{"class":3091},"-- Індекс на email: пришвидшує пошук при вході за email\n",[3085,5014,5015,5017,5020,5023,5026],{"class":3087,"line":3791},[3085,5016,4606],{"class":3108},[3085,5018,5019],{"class":3108}," INDEX",[3085,5021,5022],{"class":3688}," users_email_idx",[3085,5024,5025],{"class":3108}," ON",[3085,5027,5028],{"class":3098}," users(email);\n",[3064,5030,5032,5033],{"id":5031},"крок-4-v4-таблиця-audiobooks","Крок 4: V4 — Таблиця ",[2968,5034,2978],{},[2964,5036,5037,5038,5040,5041,5043],{},"Ця міграція залежить від ",[2968,5039,4325],{}," (V1) та ",[2968,5042,4388],{}," (V2). Flyway гарантує, що вони вже виконані перед V4.",[3076,5045,5047],{"className":3078,"code":5046,"language":3080,"meta":3081,"style":3081},"-- V4__create_audiobooks.sql\n\nCREATE TABLE audiobooks (\n    PRIMARY KEY (id),\n    id               UUID         NOT NULL,\n\n    author_id        UUID         NOT NULL,\n                      CONSTRAINT audiobooks_author_id_authors_id_fkey\n                     FOREIGN KEY (author_id) REFERENCES authors(id) ON DELETE CASCADE,\n\n    genre_id         UUID         NOT NULL,\n                      CONSTRAINT audiobooks_genre_id_genres_id_fkey\n                     FOREIGN KEY (genre_id)  REFERENCES genres(id)  ON DELETE CASCADE,\n\n    title            VARCHAR(255) NOT NULL,\n    duration         INTEGER      NOT NULL,\n                     CONSTRAINT audiobooks_duration_positive_check\n                          CHECK (duration > 0),\n    release_year     INTEGER      NOT NULL,\n                     CONSTRAINT audiobooks_release_year_check\n                          CHECK (release_year >= 1900\n                             AND release_year \u003C= EXTRACT(YEAR FROM CURRENT_DATE) + 1),\n    description      TEXT,\n    cover_image_path VARCHAR(2048)\n);\n\nCREATE INDEX audiobooks_author_id_idx ON audiobooks(author_id);\nCREATE INDEX audiobooks_genre_id_idx  ON audiobooks(genre_id);\n",[2968,5048,5049,5054,5058,5069,5075,5084,5088,5097,5105,5124,5128,5137,5144,5160,5164,5182,5194,5202,5214,5225,5232,5242,5263,5272,5285,5289,5293,5307],{"__ignoreMap":3081},[3085,5050,5051],{"class":3087,"line":3088},[3085,5052,5053],{"class":3091},"-- V4__create_audiobooks.sql\n",[3085,5055,5056],{"class":3087,"line":3095},[3085,5057,3468],{"emptyLinePlaceholder":3467},[3085,5059,5060,5062,5064,5067],{"class":3087,"line":3102},[3085,5061,4606],{"class":3108},[3085,5063,4664],{"class":3108},[3085,5065,5066],{"class":3688}," audiobooks",[3085,5068,4670],{"class":3098},[3085,5070,5071,5073],{"class":3087,"line":3118},[3085,5072,4675],{"class":3108},[3085,5074,4678],{"class":3098},[3085,5076,5077,5080,5082],{"class":3087,"line":3132},[3085,5078,5079],{"class":3098},"    id               UUID         ",[3085,5081,4686],{"class":3108},[3085,5083,3976],{"class":3098},[3085,5085,5086],{"class":3087,"line":3146},[3085,5087,3468],{"emptyLinePlaceholder":3467},[3085,5089,5090,5093,5095],{"class":3087,"line":3160},[3085,5091,5092],{"class":3098},"    author_id        UUID         ",[3085,5094,4686],{"class":3108},[3085,5096,3976],{"class":3098},[3085,5098,5099,5102],{"class":3087,"line":3174},[3085,5100,5101],{"class":3108},"                      CONSTRAINT",[3085,5103,5104],{"class":3098}," audiobooks_author_id_authors_id_fkey\n",[3085,5106,5107,5110,5113,5116,5119,5122],{"class":3087,"line":3188},[3085,5108,5109],{"class":3108},"                     FOREIGN KEY",[3085,5111,5112],{"class":3098}," (author_id) ",[3085,5114,5115],{"class":3108},"REFERENCES",[3085,5117,5118],{"class":3098}," authors(id) ",[3085,5120,5121],{"class":3108},"ON DELETE CASCADE",[3085,5123,3976],{"class":3098},[3085,5125,5126],{"class":3087,"line":3200},[3085,5127,3468],{"emptyLinePlaceholder":3467},[3085,5129,5130,5133,5135],{"class":3087,"line":3484},[3085,5131,5132],{"class":3098},"    genre_id         UUID         ",[3085,5134,4686],{"class":3108},[3085,5136,3976],{"class":3098},[3085,5138,5139,5141],{"class":3087,"line":3502},[3085,5140,5101],{"class":3108},[3085,5142,5143],{"class":3098}," audiobooks_genre_id_genres_id_fkey\n",[3085,5145,5146,5148,5151,5153,5156,5158],{"class":3087,"line":3519},[3085,5147,5109],{"class":3108},[3085,5149,5150],{"class":3098}," (genre_id)  ",[3085,5152,5115],{"class":3108},[3085,5154,5155],{"class":3098}," genres(id)  ",[3085,5157,5121],{"class":3108},[3085,5159,3976],{"class":3098},[3085,5161,5162],{"class":3087,"line":3537},[3085,5163,3468],{"emptyLinePlaceholder":3467},[3085,5165,5166,5169,5171,5173,5176,5178,5180],{"class":3087,"line":3546},[3085,5167,5168],{"class":3098},"    title            ",[3085,5170,3166],{"class":3108},[3085,5172,3732],{"class":3098},[3085,5174,5175],{"class":4700},"255",[3085,5177,4813],{"class":3098},[3085,5179,4686],{"class":3108},[3085,5181,3976],{"class":3098},[3085,5183,5184,5187,5189,5192],{"class":3087,"line":3791},[3085,5185,5186],{"class":3098},"    duration         ",[3085,5188,3109],{"class":3108},[3085,5190,5191],{"class":3108},"      NOT NULL",[3085,5193,3976],{"class":3098},[3085,5195,5196,5199],{"class":3087,"line":3815},[3085,5197,5198],{"class":3108},"                     CONSTRAINT",[3085,5200,5201],{"class":3098}," audiobooks_duration_positive_check\n",[3085,5203,5204,5207,5210,5212],{"class":3087,"line":3836},[3085,5205,5206],{"class":3108},"                          CHECK",[3085,5208,5209],{"class":3098}," (duration > ",[3085,5211,4952],{"class":4700},[3085,5213,4836],{"class":3098},[3085,5215,5216,5219,5221,5223],{"class":3087,"line":3848},[3085,5217,5218],{"class":3098},"    release_year     ",[3085,5220,3109],{"class":3108},[3085,5222,5191],{"class":3108},[3085,5224,3976],{"class":3098},[3085,5226,5227,5229],{"class":3087,"line":3854},[3085,5228,5198],{"class":3108},[3085,5230,5231],{"class":3098}," audiobooks_release_year_check\n",[3085,5233,5234,5236,5239],{"class":3087,"line":3868},[3085,5235,5206],{"class":3108},[3085,5237,5238],{"class":3098}," (release_year >= ",[3085,5240,5241],{"class":4700},"1900\n",[3085,5243,5244,5247,5250,5253,5256,5259,5261],{"class":3087,"line":3874},[3085,5245,5246],{"class":3108},"                             AND",[3085,5248,5249],{"class":3098}," release_year \u003C= EXTRACT(",[3085,5251,5252],{"class":3108},"YEAR",[3085,5254,5255],{"class":3108}," FROM",[3085,5257,5258],{"class":3098}," CURRENT_DATE) + ",[3085,5260,3289],{"class":4700},[3085,5262,4836],{"class":3098},[3085,5264,5265,5267,5270],{"class":3087,"line":3889},[3085,5266,3135],{"class":3108},[3085,5268,5269],{"class":3108},"      TEXT",[3085,5271,3976],{"class":3098},[3085,5273,5274,5277,5279,5281,5283],{"class":3087,"line":3895},[3085,5275,5276],{"class":3098},"    cover_image_path ",[3085,5278,3166],{"class":3108},[3085,5280,3732],{"class":3098},[3085,5282,4747],{"class":4700},[3085,5284,3203],{"class":3098},[3085,5286,5287],{"class":3087,"line":3909},[3085,5288,3739],{"class":3098},[3085,5290,5291],{"class":3087,"line":3919},[3085,5292,3468],{"emptyLinePlaceholder":3467},[3085,5294,5295,5297,5299,5302,5304],{"class":3087,"line":3924},[3085,5296,4606],{"class":3108},[3085,5298,5019],{"class":3108},[3085,5300,5301],{"class":3688}," audiobooks_author_id_idx",[3085,5303,5025],{"class":3108},[3085,5305,5306],{"class":3098}," audiobooks(author_id);\n",[3085,5308,5309,5311,5313,5316,5319],{"class":3087,"line":3930},[3085,5310,4606],{"class":3108},[3085,5312,5019],{"class":3108},[3085,5314,5315],{"class":3688}," audiobooks_genre_id_idx",[3085,5317,5318],{"class":3108},"  ON",[3085,5320,5321],{"class":3098}," audiobooks(genre_id);\n",[3064,5323,5325],{"id":5324},"крок-5-v5v8-залежні-таблиці","Крок 5: V5–V8 — Залежні таблиці",[2964,5327,5328],{},"Решта міграцій використовують той самий підхід. Наведемо скорочено:",[3076,5330,5332],{"className":3078,"code":5331,"language":3080,"meta":3081,"style":3081},"-- V5__create_collections.sql\nCREATE TABLE collections (\n    PRIMARY KEY (id),\n    id         UUID         NOT NULL,\n    user_id    UUID,\n                CONSTRAINT collections_user_id_users_id_fkey\n               FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,\n    name       VARCHAR(128) NOT NULL,\n               CONSTRAINT collections_name_not_empty_check\n                    CHECK (length(trim(name)) > 0),\n    created_at TIMESTAMP\n);\n\n-- V6__create_audiobook_collection.sql\nCREATE TABLE audiobook_collection (\n    PRIMARY KEY (collection_id, audiobook_id),\n    collection_id UUID NOT NULL,\n                   FOREIGN KEY (collection_id) REFERENCES collections(id) ON DELETE CASCADE,\n    audiobook_id  UUID NOT NULL,\n                   FOREIGN KEY (audiobook_id)  REFERENCES audiobooks(id) ON DELETE CASCADE\n);\n\n-- V7__create_audiobook_files.sql\nCREATE TABLE audiobook_files (\n    PRIMARY KEY (id),\n    id           UUID             NOT NULL,\n    audiobook_id UUID             NOT NULL,\n                  FOREIGN KEY (audiobook_id) REFERENCES audiobooks(id) ON DELETE CASCADE,\n    file_path    VARCHAR(2048)    NOT NULL,\n    format       file_format_enum NOT NULL,\n    size         INTEGER,\n                 CHECK (size IS NULL OR size > 0)\n);\nCREATE INDEX audiobook_files_audiobook_id_idx ON audiobook_files(audiobook_id);\n\n-- V8__create_listening_progresses.sql\nCREATE TABLE listening_progresses (\n    PRIMARY KEY (id),\n    id            UUID      NOT NULL,\n    user_id       UUID,\n                   FOREIGN KEY (user_id)      REFERENCES users(id)      ON DELETE CASCADE,\n    audiobook_id  UUID      NOT NULL,\n                   FOREIGN KEY (audiobook_id) REFERENCES audiobooks(id) ON DELETE CASCADE,\n    position      INTEGER   NOT NULL,\n                  CHECK (position > 0),\n    last_listened TIMESTAMP\n);\nCREATE INDEX listening_progresses_user_id_idx      ON listening_progresses(user_id);\nCREATE INDEX listening_progresses_audiobook_id_idx ON listening_progresses(audiobook_id);\n",[2968,5333,5334,5339,5350,5356,5365,5370,5377,5394,5411,5419,5443,5451,5455,5459,5464,5475,5482,5491,5508,5517,5532,5536,5540,5545,5556,5562,5571,5580,5596,5614,5623,5633,5662,5666,5680,5684,5689,5700,5706,5715,5720,5736,5746,5761,5774,5787,5795,5800,5816],{"__ignoreMap":3081},[3085,5335,5336],{"class":3087,"line":3088},[3085,5337,5338],{"class":3091},"-- V5__create_collections.sql\n",[3085,5340,5341,5343,5345,5348],{"class":3087,"line":3095},[3085,5342,4606],{"class":3108},[3085,5344,4664],{"class":3108},[3085,5346,5347],{"class":3688}," collections",[3085,5349,4670],{"class":3098},[3085,5351,5352,5354],{"class":3087,"line":3102},[3085,5353,4675],{"class":3108},[3085,5355,4678],{"class":3098},[3085,5357,5358,5361,5363],{"class":3087,"line":3118},[3085,5359,5360],{"class":3098},"    id         UUID         ",[3085,5362,4686],{"class":3108},[3085,5364,3976],{"class":3098},[3085,5366,5367],{"class":3087,"line":3132},[3085,5368,5369],{"class":3098},"    user_id    UUID,\n",[3085,5371,5372,5374],{"class":3087,"line":3146},[3085,5373,4822],{"class":3108},[3085,5375,5376],{"class":3098}," collections_user_id_users_id_fkey\n",[3085,5378,5379,5382,5385,5387,5390,5392],{"class":3087,"line":3160},[3085,5380,5381],{"class":3108},"               FOREIGN KEY",[3085,5383,5384],{"class":3098}," (user_id) ",[3085,5386,5115],{"class":3108},[3085,5388,5389],{"class":3098}," users(id) ",[3085,5391,5121],{"class":3108},[3085,5393,3976],{"class":3098},[3085,5395,5396,5398,5401,5403,5405,5407,5409],{"class":3087,"line":3174},[3085,5397,4804],{"class":3108},[3085,5399,5400],{"class":3108},"       VARCHAR",[3085,5402,3732],{"class":3098},[3085,5404,4966],{"class":4700},[3085,5406,4813],{"class":3098},[3085,5408,4686],{"class":3108},[3085,5410,3976],{"class":3098},[3085,5412,5413,5416],{"class":3087,"line":3188},[3085,5414,5415],{"class":3108},"               CONSTRAINT",[3085,5417,5418],{"class":3098}," collections_name_not_empty_check\n",[3085,5420,5421,5424,5426,5428,5430,5432,5434,5436,5439,5441],{"class":3087,"line":3200},[3085,5422,5423],{"class":3108},"                    CHECK",[3085,5425,3307],{"class":3098},[3085,5427,4941],{"class":3108},[3085,5429,3732],{"class":3098},[3085,5431,4946],{"class":3688},[3085,5433,3732],{"class":3098},[3085,5435,4833],{"class":3108},[3085,5437,5438],{"class":3098},")) > ",[3085,5440,4952],{"class":4700},[3085,5442,4836],{"class":3098},[3085,5444,5445,5448],{"class":3087,"line":3484},[3085,5446,5447],{"class":3098},"    created_at ",[3085,5449,5450],{"class":3108},"TIMESTAMP\n",[3085,5452,5453],{"class":3087,"line":3502},[3085,5454,3739],{"class":3098},[3085,5456,5457],{"class":3087,"line":3519},[3085,5458,3468],{"emptyLinePlaceholder":3467},[3085,5460,5461],{"class":3087,"line":3537},[3085,5462,5463],{"class":3091},"-- V6__create_audiobook_collection.sql\n",[3085,5465,5466,5468,5470,5473],{"class":3087,"line":3546},[3085,5467,4606],{"class":3108},[3085,5469,4664],{"class":3108},[3085,5471,5472],{"class":3688}," audiobook_collection",[3085,5474,4670],{"class":3098},[3085,5476,5477,5479],{"class":3087,"line":3791},[3085,5478,4675],{"class":3108},[3085,5480,5481],{"class":3098}," (collection_id, audiobook_id),\n",[3085,5483,5484,5487,5489],{"class":3087,"line":3815},[3085,5485,5486],{"class":3098},"    collection_id UUID ",[3085,5488,4686],{"class":3108},[3085,5490,3976],{"class":3098},[3085,5492,5493,5496,5499,5501,5504,5506],{"class":3087,"line":3836},[3085,5494,5495],{"class":3108},"                   FOREIGN KEY",[3085,5497,5498],{"class":3098}," (collection_id) ",[3085,5500,5115],{"class":3108},[3085,5502,5503],{"class":3098}," collections(id) ",[3085,5505,5121],{"class":3108},[3085,5507,3976],{"class":3098},[3085,5509,5510,5513,5515],{"class":3087,"line":3848},[3085,5511,5512],{"class":3098},"    audiobook_id  UUID ",[3085,5514,4686],{"class":3108},[3085,5516,3976],{"class":3098},[3085,5518,5519,5521,5524,5526,5529],{"class":3087,"line":3854},[3085,5520,5495],{"class":3108},[3085,5522,5523],{"class":3098}," (audiobook_id)  ",[3085,5525,5115],{"class":3108},[3085,5527,5528],{"class":3098}," audiobooks(id) ",[3085,5530,5531],{"class":3108},"ON DELETE CASCADE\n",[3085,5533,5534],{"class":3087,"line":3868},[3085,5535,3739],{"class":3098},[3085,5537,5538],{"class":3087,"line":3874},[3085,5539,3468],{"emptyLinePlaceholder":3467},[3085,5541,5542],{"class":3087,"line":3889},[3085,5543,5544],{"class":3091},"-- V7__create_audiobook_files.sql\n",[3085,5546,5547,5549,5551,5554],{"class":3087,"line":3895},[3085,5548,4606],{"class":3108},[3085,5550,4664],{"class":3108},[3085,5552,5553],{"class":3688}," audiobook_files",[3085,5555,4670],{"class":3098},[3085,5557,5558,5560],{"class":3087,"line":3909},[3085,5559,4675],{"class":3108},[3085,5561,4678],{"class":3098},[3085,5563,5564,5567,5569],{"class":3087,"line":3919},[3085,5565,5566],{"class":3098},"    id           UUID             ",[3085,5568,4686],{"class":3108},[3085,5570,3976],{"class":3098},[3085,5572,5573,5576,5578],{"class":3087,"line":3924},[3085,5574,5575],{"class":3098},"    audiobook_id UUID             ",[3085,5577,4686],{"class":3108},[3085,5579,3976],{"class":3098},[3085,5581,5582,5585,5588,5590,5592,5594],{"class":3087,"line":3930},[3085,5583,5584],{"class":3108},"                  FOREIGN KEY",[3085,5586,5587],{"class":3098}," (audiobook_id) ",[3085,5589,5115],{"class":3108},[3085,5591,5528],{"class":3098},[3085,5593,5121],{"class":3108},[3085,5595,3976],{"class":3098},[3085,5597,5598,5601,5603,5605,5607,5610,5612],{"class":3087,"line":3951},[3085,5599,5600],{"class":3098},"    file_path    ",[3085,5602,3166],{"class":3108},[3085,5604,3732],{"class":3098},[3085,5606,4747],{"class":4700},[3085,5608,5609],{"class":3098},")    ",[3085,5611,4686],{"class":3108},[3085,5613,3976],{"class":3098},[3085,5615,5616,5619,5621],{"class":3087,"line":3970},[3085,5617,5618],{"class":3098},"    format       file_format_enum ",[3085,5620,4686],{"class":3108},[3085,5622,3976],{"class":3098},[3085,5624,5625,5628,5631],{"class":3087,"line":3979},[3085,5626,5627],{"class":3108},"    size",[3085,5629,5630],{"class":3108},"         INTEGER",[3085,5632,3976],{"class":3098},[3085,5634,5635,5638,5640,5643,5646,5649,5652,5655,5658,5660],{"class":3087,"line":3992},[3085,5636,5637],{"class":3108},"                 CHECK",[3085,5639,3307],{"class":3098},[3085,5641,5642],{"class":3108},"size",[3085,5644,5645],{"class":3108}," IS",[3085,5647,5648],{"class":3108}," NULL",[3085,5650,5651],{"class":3108}," OR",[3085,5653,5654],{"class":3108}," size",[3085,5656,5657],{"class":3098}," > ",[3085,5659,4952],{"class":4700},[3085,5661,3203],{"class":3098},[3085,5663,5664],{"class":3087,"line":4002},[3085,5665,3739],{"class":3098},[3085,5667,5668,5670,5672,5675,5677],{"class":3087,"line":4008},[3085,5669,4606],{"class":3108},[3085,5671,5019],{"class":3108},[3085,5673,5674],{"class":3688}," audiobook_files_audiobook_id_idx",[3085,5676,5025],{"class":3108},[3085,5678,5679],{"class":3098}," audiobook_files(audiobook_id);\n",[3085,5681,5682],{"class":3087,"line":4013},[3085,5683,3468],{"emptyLinePlaceholder":3467},[3085,5685,5686],{"class":3087,"line":4018},[3085,5687,5688],{"class":3091},"-- V8__create_listening_progresses.sql\n",[3085,5690,5691,5693,5695,5698],{"class":3087,"line":4032},[3085,5692,4606],{"class":3108},[3085,5694,4664],{"class":3108},[3085,5696,5697],{"class":3688}," listening_progresses",[3085,5699,4670],{"class":3098},[3085,5701,5702,5704],{"class":3087,"line":4047},[3085,5703,4675],{"class":3108},[3085,5705,4678],{"class":3098},[3085,5707,5708,5711,5713],{"class":3087,"line":4056},[3085,5709,5710],{"class":3098},"    id            UUID      ",[3085,5712,4686],{"class":3108},[3085,5714,3976],{"class":3098},[3085,5716,5717],{"class":3087,"line":4063},[3085,5718,5719],{"class":3098},"    user_id       UUID,\n",[3085,5721,5722,5724,5727,5729,5732,5734],{"class":3087,"line":4068},[3085,5723,5495],{"class":3108},[3085,5725,5726],{"class":3098}," (user_id)      ",[3085,5728,5115],{"class":3108},[3085,5730,5731],{"class":3098}," users(id)      ",[3085,5733,5121],{"class":3108},[3085,5735,3976],{"class":3098},[3085,5737,5739,5742,5744],{"class":3087,"line":5738},42,[3085,5740,5741],{"class":3098},"    audiobook_id  UUID      ",[3085,5743,4686],{"class":3108},[3085,5745,3976],{"class":3098},[3085,5747,5749,5751,5753,5755,5757,5759],{"class":3087,"line":5748},43,[3085,5750,5495],{"class":3108},[3085,5752,5587],{"class":3098},[3085,5754,5115],{"class":3108},[3085,5756,5528],{"class":3098},[3085,5758,5121],{"class":3108},[3085,5760,3976],{"class":3098},[3085,5762,5764,5767,5769,5772],{"class":3087,"line":5763},44,[3085,5765,5766],{"class":3098},"    position      ",[3085,5768,3109],{"class":3108},[3085,5770,5771],{"class":3108},"   NOT NULL",[3085,5773,3976],{"class":3098},[3085,5775,5777,5780,5783,5785],{"class":3087,"line":5776},45,[3085,5778,5779],{"class":3108},"                  CHECK",[3085,5781,5782],{"class":3098}," (position > ",[3085,5784,4952],{"class":4700},[3085,5786,4836],{"class":3098},[3085,5788,5790,5793],{"class":3087,"line":5789},46,[3085,5791,5792],{"class":3098},"    last_listened ",[3085,5794,5450],{"class":3108},[3085,5796,5798],{"class":3087,"line":5797},47,[3085,5799,3739],{"class":3098},[3085,5801,5803,5805,5807,5810,5813],{"class":3087,"line":5802},48,[3085,5804,4606],{"class":3108},[3085,5806,5019],{"class":3108},[3085,5808,5809],{"class":3688}," listening_progresses_user_id_idx",[3085,5811,5812],{"class":3108},"      ON",[3085,5814,5815],{"class":3098}," listening_progresses(user_id);\n",[3085,5817,5819,5821,5823,5826,5828],{"class":3087,"line":5818},49,[3085,5820,4606],{"class":3108},[3085,5822,5019],{"class":3108},[3085,5824,5825],{"class":3688}," listening_progresses_audiobook_id_idx",[3085,5827,5025],{"class":3108},[3085,5829,5830],{"class":3098}," listening_progresses(audiobook_id);\n",[2964,5832,5833,5834,5836,5837,3234],{},"Після першого запуску додатку Flyway застосує усі вісім міграцій послідовно і заповнить таблицю ",[2968,5835,3073],{}," відповідними записами. Схема зафіксована у версії ",[2968,5838,5839],{},"8",[3057,5841],{},[2959,5843,5845],{"id":5844},"seed-data-міграції-для-початкових-даних","Seed Data: Міграції для початкових даних",[2964,5847,5848,5849,5852,5853,5856,5857,5860],{},"Схема створена. Але порожня база не є повністю функціональною: аудіоплатформа без жодного жанру не дозволить додати жодну книгу, оскільки ",[2968,5850,5851],{},"audiobooks.genre_id"," є обов'язковим зовнішнім ключем. Певні дані є ",[2998,5854,5855],{},"передумовою"," правильної роботи системи, а не просто тестовими записами. Такі дані прийнято називати ",[2998,5858,5859],{},"seed data"," (початкові, «насінні» дані).",[3064,5862,5864],{"id":5863},"коли-insert-є-частиною-міграції","Коли INSERT є частиною міграції",[2964,5866,5867,5868,5871],{},"Принциповим є питання: чи повинні ",[2968,5869,5870],{},"INSERT","-команди розміщуватись у файлах Flyway, чи за межами інструменту міграцій? Відповідь залежить від характеру даних.",[3013,5873,5874,5901],{},[3016,5875,5877,5884],{"icon":3040,"title":5876},"✅ У міграції (Flyway)",[2964,5878,5879,5880,5883],{},"Дані є ",[2998,5881,5882],{},"частиною схеми"," — без них система некоректна:",[3021,5885,5886,5892,5898],{},[3024,5887,5888,5889,5891],{},"Статичні довідники: ",[2968,5890,4388],{},", плани підписки, коди валют",[3024,5893,5894,5895,5897],{},"Системний адміністратор (перший обов'язковий запис у ",[2968,5896,4402],{},")",[3024,5899,5900],{},"Перелічувані значення, що дублюють ENUM на рівні таблиці",[3016,5902,5904,5911],{"icon":3018,"title":5903},"❌ Поза Flyway (окремий механізм)",[2964,5905,5906,5907,5910],{},"Дані потрібні ",[2998,5908,5909],{},"лише для розробки або тестування",":",[3021,5912,5913,5916,5919],{},[3024,5914,5915],{},"Тестові книги, автори, користувачі для ручного QA",[3024,5917,5918],{},"Демонстраційні записи для презентацій",[3024,5920,5921,5922,5897],{},"Fixtures для JUnit-тестів (вставляються через ",[2968,5923,5924],{},"@BeforeEach",[2964,5926,5927,5928,5931],{},"Цей поділ є концептуально важливим: ",[2998,5929,5930],{},"Flyway-міграції є частиною коду і виконуються в production",". Тестові дані у production — це архітектурна помилка.",[3064,5933,5935,5936],{"id":5934},"repeatable-migration-r__seed_genressql","Repeatable Migration: ",[2968,5937,5938],{},"R__seed_genres.sql",[2964,5940,5941,5942,5945,5946,5948,5949,5952,5953,5955],{},"Для початкових даних-довідників у Flyway існує спеціальний тип — ",[2998,5943,5944],{},"Repeatable Migration"," (повторювана міграція). На відміну від версіонованих (",[2968,5947,3278],{},"), повторювана міграція виконується знову щоразу, коли ",[2998,5950,5951],{},"змінюється вміст файлу"," (контрольна сума). Це зручно для довідників: якщо додати новий жанр — достатньо оновити файл ",[2968,5954,5938],{},", і Flyway виконає його повторно при наступному старті.",[3332,5957,5958,5959,5962,5963,5965,5966,5968,5969,5971,5972,5975,5976,5979,5980,5982,5983,5986,5987,5989],{},"Повторювана міграція виконується ",[2998,5960,5961],{},"після"," всіх версіонованих. Якщо файл ",[2968,5964,5938],{}," існує поруч із ",[2968,5967,4296],{},"–",[2968,5970,4473],{},", Flyway спочатку застосує усі ",[2968,5973,5974],{},"V*",", а тоді — ",[2968,5977,5978],{},"R*",". Крім того, для коректного повторного виконання ",[2968,5981,5870],{}," слід використовувати ",[2968,5984,5985],{},"INSERT ... ON CONFLICT DO NOTHING"," (PostgreSQL / H2 у режимі PostgreSQL), щоб уникнути порушення ",[2968,5988,4828],{},"-обмежень при повторному запуску.",[2964,5991,5992,5993,5995,5996,5999],{},"Для H2 у режимі сумісності з PostgreSQL (",[2968,5994,4252],{},") синтаксис ",[2968,5997,5998],{},"ON CONFLICT"," підтримується:",[3076,6001,6003],{"className":3078,"code":6002,"language":3080,"meta":3081,"style":3081},"-- R__seed_genres.sql\n-- Повторювана міграція: виконується щоразу при зміні файлу.\n-- INSERT ... ON CONFLICT DO NOTHING: безпечний повторний запуск.\n\nINSERT INTO genres (id, name, description)\nVALUES\n    ('660e8400-e29b-41d4-a716-446655440001',\n     'Фантастика',\n     'Наукова фантастика, фентезі та альтернативна історія'),\n    ('660e8400-e29b-41d4-a716-446655440002',\n     'Роман',\n     'Художня проза, що досліджує людські стосунки та суспільство'),\n    ('660e8400-e29b-41d4-a716-446655440003',\n     'Документальна',\n     'Non-fiction: біографії, мемуари, журналістика'),\n    ('660e8400-e29b-41d4-a716-446655440004',\n     'Дитяча',\n     'Казки, пригоди та освітні книги для дітей'),\n    ('660e8400-e29b-41d4-a716-446655440005',\n     'Бізнес',\n     'Підприємництво, менеджмент, самовдосконалення')\nON CONFLICT (id) DO NOTHING;\n",[2968,6004,6005,6010,6015,6020,6024,6041,6046,6056,6063,6070,6079,6086,6093,6102,6109,6116,6125,6132,6139,6148,6155,6162],{"__ignoreMap":3081},[3085,6006,6007],{"class":3087,"line":3088},[3085,6008,6009],{"class":3091},"-- R__seed_genres.sql\n",[3085,6011,6012],{"class":3087,"line":3095},[3085,6013,6014],{"class":3091},"-- Повторювана міграція: виконується щоразу при зміні файлу.\n",[3085,6016,6017],{"class":3087,"line":3102},[3085,6018,6019],{"class":3091},"-- INSERT ... ON CONFLICT DO NOTHING: безпечний повторний запуск.\n",[3085,6021,6022],{"class":3087,"line":3118},[3085,6023,3468],{"emptyLinePlaceholder":3467},[3085,6025,6026,6029,6032,6034,6036,6039],{"class":3087,"line":3132},[3085,6027,6028],{"class":3108},"INSERT INTO",[3085,6030,6031],{"class":3098}," genres (id, ",[3085,6033,4833],{"class":3108},[3085,6035,3228],{"class":3098},[3085,6037,6038],{"class":3108},"description",[3085,6040,3203],{"class":3098},[3085,6042,6043],{"class":3087,"line":3146},[3085,6044,6045],{"class":3108},"VALUES\n",[3085,6047,6048,6051,6054],{"class":3087,"line":3160},[3085,6049,6050],{"class":3098},"    (",[3085,6052,6053],{"class":3735},"'660e8400-e29b-41d4-a716-446655440001'",[3085,6055,3976],{"class":3098},[3085,6057,6058,6061],{"class":3087,"line":3174},[3085,6059,6060],{"class":3735},"     'Фантастика'",[3085,6062,3976],{"class":3098},[3085,6064,6065,6068],{"class":3087,"line":3188},[3085,6066,6067],{"class":3735},"     'Наукова фантастика, фентезі та альтернативна історія'",[3085,6069,4836],{"class":3098},[3085,6071,6072,6074,6077],{"class":3087,"line":3200},[3085,6073,6050],{"class":3098},[3085,6075,6076],{"class":3735},"'660e8400-e29b-41d4-a716-446655440002'",[3085,6078,3976],{"class":3098},[3085,6080,6081,6084],{"class":3087,"line":3484},[3085,6082,6083],{"class":3735},"     'Роман'",[3085,6085,3976],{"class":3098},[3085,6087,6088,6091],{"class":3087,"line":3502},[3085,6089,6090],{"class":3735},"     'Художня проза, що досліджує людські стосунки та суспільство'",[3085,6092,4836],{"class":3098},[3085,6094,6095,6097,6100],{"class":3087,"line":3519},[3085,6096,6050],{"class":3098},[3085,6098,6099],{"class":3735},"'660e8400-e29b-41d4-a716-446655440003'",[3085,6101,3976],{"class":3098},[3085,6103,6104,6107],{"class":3087,"line":3537},[3085,6105,6106],{"class":3735},"     'Документальна'",[3085,6108,3976],{"class":3098},[3085,6110,6111,6114],{"class":3087,"line":3546},[3085,6112,6113],{"class":3735},"     'Non-fiction: біографії, мемуари, журналістика'",[3085,6115,4836],{"class":3098},[3085,6117,6118,6120,6123],{"class":3087,"line":3791},[3085,6119,6050],{"class":3098},[3085,6121,6122],{"class":3735},"'660e8400-e29b-41d4-a716-446655440004'",[3085,6124,3976],{"class":3098},[3085,6126,6127,6130],{"class":3087,"line":3815},[3085,6128,6129],{"class":3735},"     'Дитяча'",[3085,6131,3976],{"class":3098},[3085,6133,6134,6137],{"class":3087,"line":3836},[3085,6135,6136],{"class":3735},"     'Казки, пригоди та освітні книги для дітей'",[3085,6138,4836],{"class":3098},[3085,6140,6141,6143,6146],{"class":3087,"line":3848},[3085,6142,6050],{"class":3098},[3085,6144,6145],{"class":3735},"'660e8400-e29b-41d4-a716-446655440005'",[3085,6147,3976],{"class":3098},[3085,6149,6150,6153],{"class":3087,"line":3854},[3085,6151,6152],{"class":3735},"     'Бізнес'",[3085,6154,3976],{"class":3098},[3085,6156,6157,6160],{"class":3087,"line":3868},[3085,6158,6159],{"class":3735},"     'Підприємництво, менеджмент, самовдосконалення'",[3085,6161,3203],{"class":3098},[3085,6163,6164,6167],{"class":3087,"line":3874},[3085,6165,6166],{"class":3108},"ON",[3085,6168,6169],{"class":3098}," CONFLICT (id) DO NOTHING;\n",[2964,6171,6172,6173,6176,6177,6180,6181,6184],{},"Рядок ",[2968,6174,6175],{},"ON CONFLICT (id) DO NOTHING"," є ключовим: якщо запис із таким ",[2968,6178,6179],{},"id"," вже існує у таблиці (наприклад, міграція виконується вдруге після оновлення файлу), вставка для цього рядка пропускається без помилки. Це робить повторювану міграцію ",[2998,6182,6183],{},"ідемпотентною"," — наслідок її виконання однаковий незалежно від того, скільки разів вона запущена.",[3601,6186,6187,6188,6191,6192,6195,6196,6199],{},"UUID для seed-записів слід обирати ",[2998,6189,6190],{},"фіксованими",", а не генерованими (",[2968,6193,6194],{},"RANDOM_UUID()","). Фіксований UUID дозволяє безпечно посилатися на ці записи в інших міграціях або тестах: ",[2968,6197,6198],{},"genre_id = '660e8400-...'",". UUID, що генерується при кожному запуску, унеможливлює передбачувані FK-посилання.",[3064,6201,6203],{"id":6202},"підсумок-розрізнення-типів-даних","Підсумок розрізнення типів даних",[4184,6205,6206,6219],{},[4187,6207,6208],{},[4190,6209,6210,6213,6216],{},[4193,6211,6212],{},"Тип даних",[4193,6214,6215],{},"Механізм",[4193,6217,6218],{},"Приклад",[4203,6220,6221,6237,6253,6269],{},[4190,6222,6223,6226,6232],{},[4208,6224,6225],{},"Схема (DDL)",[4208,6227,6228,6231],{},[2968,6229,6230],{},"V*__*.sql"," (Versioned)",[4208,6233,6234],{},[2968,6235,6236],{},"CREATE TABLE genres",[4190,6238,6239,6242,6248],{},[4208,6240,6241],{},"Довідник (Seed)",[4208,6243,6244,6247],{},[2968,6245,6246],{},"R__*.sql"," (Repeatable)",[4208,6249,6250],{},[2968,6251,6252],{},"INSERT INTO genres ... ON CONFLICT DO NOTHING",[4190,6254,6255,6258,6264],{},[4208,6256,6257],{},"Тестові дані",[4208,6259,6260,6261,6263],{},"JUnit ",[2968,6262,5924],{},", Testcontainers",[4208,6265,6266],{},[2968,6267,6268],{},"INSERT INTO audiobooks VALUES (...)",[4190,6270,6271,6274,6277],{},[4208,6272,6273],{},"Демо-дані",[4208,6275,6276],{},"Окремий Maven profile або скрипт",[4208,6278,6279,6280,6283,6284,6287],{},"Клас ",[2968,6281,6282],{},"DataSeeder"," з ",[2968,6285,6286],{},"main()"," методом",[3057,6289],{},[2959,6291,6293],{"id":6292},"еволюція-схеми-типові-сценарії","Еволюція схеми: Типові сценарії",[2964,6295,6296],{},"Після первинного розгортання схема не залишається незмінною. Будь-яка жива система еволюціонує: з'являються нові бізнес-вимоги, виявляються недоліки початкового проектування, зростає навантаження. У цьому розділі розглянемо найпоширеніші сценарії і те, як правильно оформити кожен із них як міграцію.",[3064,6298,6300],{"id":6299},"сценарій-1-додавання-нового-стовпця","Сценарій 1: Додавання нового стовпця",[2964,6302,6303,6304,2975,6306,3234],{},"Це найбезпечніша і найпоширеніша операція. Платформа вирішує зберігати мову озвучення аудіокниги. Додаємо стовпець ",[2968,6305,2974],{},[2968,6307,2978],{},[3076,6309,6311],{"className":3078,"code":6310,"language":3080,"meta":3081,"style":3081},"-- V9__add_language_to_audiobooks.sql\n-- Мотивація: підтримка мультимовного каталогу.\n-- DEFAULT 'uk': наявні записи отримують значення 'uk' (українська) —\n-- це безпечне припущення для поточного каталогу.\n\nALTER TABLE audiobooks\n    ADD COLUMN language VARCHAR(10) NOT NULL DEFAULT 'uk';\n",[2968,6312,6313,6318,6323,6328,6333,6337,6347],{"__ignoreMap":3081},[3085,6314,6315],{"class":3087,"line":3088},[3085,6316,6317],{"class":3091},"-- V9__add_language_to_audiobooks.sql\n",[3085,6319,6320],{"class":3087,"line":3095},[3085,6321,6322],{"class":3091},"-- Мотивація: підтримка мультимовного каталогу.\n",[3085,6324,6325],{"class":3087,"line":3102},[3085,6326,6327],{"class":3091},"-- DEFAULT 'uk': наявні записи отримують значення 'uk' (українська) —\n",[3085,6329,6330],{"class":3087,"line":3118},[3085,6331,6332],{"class":3091},"-- це безпечне припущення для поточного каталогу.\n",[3085,6334,6335],{"class":3087,"line":3132},[3085,6336,3468],{"emptyLinePlaceholder":3467},[3085,6338,6339,6342,6344],{"class":3087,"line":3146},[3085,6340,6341],{"class":3108},"ALTER",[3085,6343,4664],{"class":3108},[3085,6345,6346],{"class":3098}," audiobooks\n",[3085,6348,6349,6352,6355,6357,6360,6362,6365,6367,6369,6372,6375],{"class":3087,"line":3160},[3085,6350,6351],{"class":3108},"    ADD",[3085,6353,6354],{"class":3098}," COLUMN ",[3085,6356,2974],{"class":3108},[3085,6358,6359],{"class":3108}," VARCHAR",[3085,6361,3732],{"class":3098},[3085,6363,6364],{"class":4700},"10",[3085,6366,4813],{"class":3098},[3085,6368,4686],{"class":3108},[3085,6370,6371],{"class":3108}," DEFAULT",[3085,6373,6374],{"class":3735}," 'uk'",[3085,6376,6377],{"class":3098},";\n",[2964,6379,6380,6381,6384,6385,6387,6388,6391,6392,6394,6395,6397],{},"Зверніть увагу на ",[2968,6382,6383],{},"DEFAULT 'uk'",". При додаванні ",[2968,6386,4686],{},"-стовпця до таблиці з наявними рядками СУБД вимагає або ",[2968,6389,6390],{},"DEFAULT",", або явного оновлення всіх рядків. Без ",[2968,6393,6390],{}," H2 та PostgreSQL повернуть помилку: існуючі рядки не мають значення для нового ",[2968,6396,4686],{},"-стовпця. Значення за замовчуванням — архітектурне рішення: воно відображає найвірогідніший стан даних до введення нового поля.",[3601,6399,6400,6401,6404,6405,6407,6408,6411],{},"Якщо значення за замовчуванням не є очевидним — краще зробити стовпець ",[2968,6402,6403],{},"NULL","-дозволеним (",[2968,6406,4686],{}," опустити), а після міграції заповнити значення через окрему ",[2968,6409,6410],{},"UPDATE","-команду в наступній міграції. Це дає більший контроль і не нав'язує «фіктивних» значень.",[3064,6413,6415],{"id":6414},"сценарій-2-додавання-нової-таблиці","Сценарій 2: Додавання нової таблиці",[2964,6417,6418,6419,6421,6422,3279,6424,6426],{},"Платформа вводить систему рецензій. Нова таблиця ",[2968,6420,2970],{}," залежить від ",[2968,6423,4402],{},[2968,6425,2978],{}," — вони вже існують (V3 та V4), тому нова міграція може сміливо посилатись на них.",[3076,6428,6430],{"className":3078,"code":6429,"language":3080,"meta":3081,"style":3081},"-- V10__create_reviews.sql\n-- Таблиця рецензій: користувач оцінює аудіокнигу (rating 1–5)\n-- та може залишити текстовий коментар.\n\nCREATE TABLE reviews (\n    PRIMARY KEY (id),\n    id           UUID      NOT NULL,\n    user_id      UUID      NOT NULL,\n                  CONSTRAINT reviews_user_id_fkey\n                 FOREIGN KEY (user_id)\n                  REFERENCES users(id) ON DELETE CASCADE,\n    audiobook_id UUID      NOT NULL,\n                  CONSTRAINT reviews_audiobook_id_fkey\n                 FOREIGN KEY (audiobook_id)\n                  REFERENCES audiobooks(id) ON DELETE CASCADE,\n    rating       INTEGER   NOT NULL,\n                 CONSTRAINT reviews_rating_check\n                      CHECK (rating >= 1 AND rating \u003C= 5),\n    comment      TEXT,           -- NULL: коментар необов'язковий\n    created_at   TIMESTAMP NOT NULL\n);\n\n-- Одна рецензія від одного користувача на одну книгу:\nCREATE UNIQUE INDEX reviews_user_audiobook_unique_idx\n    ON reviews(user_id, audiobook_id);\n\n-- Прискорення отримання всіх рецензій книги:\nCREATE INDEX reviews_audiobook_id_idx ON reviews(audiobook_id);\n",[2968,6431,6432,6437,6442,6447,6451,6462,6468,6477,6486,6493,6501,6512,6521,6528,6535,6545,6556,6564,6585,6598,6609,6613,6617,6622,6632,6640,6644,6649],{"__ignoreMap":3081},[3085,6433,6434],{"class":3087,"line":3088},[3085,6435,6436],{"class":3091},"-- V10__create_reviews.sql\n",[3085,6438,6439],{"class":3087,"line":3095},[3085,6440,6441],{"class":3091},"-- Таблиця рецензій: користувач оцінює аудіокнигу (rating 1–5)\n",[3085,6443,6444],{"class":3087,"line":3102},[3085,6445,6446],{"class":3091},"-- та може залишити текстовий коментар.\n",[3085,6448,6449],{"class":3087,"line":3118},[3085,6450,3468],{"emptyLinePlaceholder":3467},[3085,6452,6453,6455,6457,6460],{"class":3087,"line":3132},[3085,6454,4606],{"class":3108},[3085,6456,4664],{"class":3108},[3085,6458,6459],{"class":3688}," reviews",[3085,6461,4670],{"class":3098},[3085,6463,6464,6466],{"class":3087,"line":3146},[3085,6465,4675],{"class":3108},[3085,6467,4678],{"class":3098},[3085,6469,6470,6473,6475],{"class":3087,"line":3160},[3085,6471,6472],{"class":3098},"    id           UUID      ",[3085,6474,4686],{"class":3108},[3085,6476,3976],{"class":3098},[3085,6478,6479,6482,6484],{"class":3087,"line":3174},[3085,6480,6481],{"class":3098},"    user_id      UUID      ",[3085,6483,4686],{"class":3108},[3085,6485,3976],{"class":3098},[3085,6487,6488,6490],{"class":3087,"line":3188},[3085,6489,4916],{"class":3108},[3085,6491,6492],{"class":3098}," reviews_user_id_fkey\n",[3085,6494,6495,6498],{"class":3087,"line":3200},[3085,6496,6497],{"class":3108},"                 FOREIGN KEY",[3085,6499,6500],{"class":3098}," (user_id)\n",[3085,6502,6503,6506,6508,6510],{"class":3087,"line":3484},[3085,6504,6505],{"class":3108},"                  REFERENCES",[3085,6507,5389],{"class":3098},[3085,6509,5121],{"class":3108},[3085,6511,3976],{"class":3098},[3085,6513,6514,6517,6519],{"class":3087,"line":3502},[3085,6515,6516],{"class":3098},"    audiobook_id UUID      ",[3085,6518,4686],{"class":3108},[3085,6520,3976],{"class":3098},[3085,6522,6523,6525],{"class":3087,"line":3519},[3085,6524,4916],{"class":3108},[3085,6526,6527],{"class":3098}," reviews_audiobook_id_fkey\n",[3085,6529,6530,6532],{"class":3087,"line":3537},[3085,6531,6497],{"class":3108},[3085,6533,6534],{"class":3098}," (audiobook_id)\n",[3085,6536,6537,6539,6541,6543],{"class":3087,"line":3546},[3085,6538,6505],{"class":3108},[3085,6540,5528],{"class":3098},[3085,6542,5121],{"class":3108},[3085,6544,3976],{"class":3098},[3085,6546,6547,6550,6552,6554],{"class":3087,"line":3791},[3085,6548,6549],{"class":3098},"    rating       ",[3085,6551,3109],{"class":3108},[3085,6553,5771],{"class":3108},[3085,6555,3976],{"class":3098},[3085,6557,6558,6561],{"class":3087,"line":3815},[3085,6559,6560],{"class":3108},"                 CONSTRAINT",[3085,6562,6563],{"class":3098}," reviews_rating_check\n",[3085,6565,6566,6569,6572,6574,6577,6580,6583],{"class":3087,"line":3836},[3085,6567,6568],{"class":3108},"                      CHECK",[3085,6570,6571],{"class":3098}," (rating >= ",[3085,6573,3289],{"class":4700},[3085,6575,6576],{"class":3108}," AND",[3085,6578,6579],{"class":3098}," rating \u003C= ",[3085,6581,6582],{"class":4700},"5",[3085,6584,4836],{"class":3098},[3085,6586,6587,6590,6592,6595],{"class":3087,"line":3848},[3085,6588,6589],{"class":3098},"    comment      ",[3085,6591,4733],{"class":3108},[3085,6593,6594],{"class":3098},",           ",[3085,6596,6597],{"class":3091},"-- NULL: коментар необов'язковий\n",[3085,6599,6600,6603,6606],{"class":3087,"line":3854},[3085,6601,6602],{"class":3098},"    created_at   ",[3085,6604,6605],{"class":3108},"TIMESTAMP",[3085,6607,6608],{"class":3108}," NOT NULL\n",[3085,6610,6611],{"class":3087,"line":3868},[3085,6612,3739],{"class":3098},[3085,6614,6615],{"class":3087,"line":3874},[3085,6616,3468],{"emptyLinePlaceholder":3467},[3085,6618,6619],{"class":3087,"line":3889},[3085,6620,6621],{"class":3091},"-- Одна рецензія від одного користувача на одну книгу:\n",[3085,6623,6624,6626,6629],{"class":3087,"line":3895},[3085,6625,4606],{"class":3108},[3085,6627,6628],{"class":3108}," UNIQUE INDEX",[3085,6630,6631],{"class":3688}," reviews_user_audiobook_unique_idx\n",[3085,6633,6634,6637],{"class":3087,"line":3909},[3085,6635,6636],{"class":3108},"    ON",[3085,6638,6639],{"class":3098}," reviews(user_id, audiobook_id);\n",[3085,6641,6642],{"class":3087,"line":3919},[3085,6643,3468],{"emptyLinePlaceholder":3467},[3085,6645,6646],{"class":3087,"line":3924},[3085,6647,6648],{"class":3091},"-- Прискорення отримання всіх рецензій книги:\n",[3085,6650,6651,6653,6655,6658,6660],{"class":3087,"line":3930},[3085,6652,4606],{"class":3108},[3085,6654,5019],{"class":3108},[3085,6656,6657],{"class":3688}," reviews_audiobook_id_idx",[3085,6659,5025],{"class":3108},[3085,6661,6662],{"class":3098}," reviews(audiobook_id);\n",[2964,6664,6665,6666,6669,6670,3234],{},"Унікальний індекс ",[2968,6667,6668],{},"reviews_user_audiobook_unique_idx"," реалізує бізнес-правило «один користувач — одна рецензія на одну книгу» на рівні СУБД. Це надійніше, ніж перевірка лише в Java-коді: навіть паралельні запити не зможуть створити два записи для тієї самої пари ",[2968,6671,6672],{},"(user_id, audiobook_id)",[3064,6674,6676],{"id":6675},"сценарій-3-перейменування-стовпця","Сценарій 3: Перейменування стовпця",[2964,6678,6679,6680,6682,6683,6685,6686,3234],{},"Виявляється, що назва ",[2968,6681,4281],{}," у таблиці ",[2968,6684,4483],{}," неоднозначна — незрозуміло, в яких одиницях виражена позиція. Команда вирішує перейменувати на ",[2968,6687,2986],{},[3356,6689,6690,6737],{},[3359,6691,6693],{"label":6692},"H2 / PostgreSQL (сучасний синтаксис)",[3076,6694,6696],{"className":3078,"code":6695,"language":3080,"meta":3081,"style":3081},"-- V11__rename_position_to_position_seconds.sql\n-- Перейменовуємо стовпець для ясності: position → position_seconds.\n-- H2 (MODE=PostgreSQL) та PostgreSQL 9.6+ підтримують цей синтаксис.\n\nALTER TABLE listening_progresses\n    RENAME COLUMN position TO position_seconds;\n",[2968,6697,6698,6703,6708,6713,6717,6726],{"__ignoreMap":3081},[3085,6699,6700],{"class":3087,"line":3088},[3085,6701,6702],{"class":3091},"-- V11__rename_position_to_position_seconds.sql\n",[3085,6704,6705],{"class":3087,"line":3095},[3085,6706,6707],{"class":3091},"-- Перейменовуємо стовпець для ясності: position → position_seconds.\n",[3085,6709,6710],{"class":3087,"line":3102},[3085,6711,6712],{"class":3091},"-- H2 (MODE=PostgreSQL) та PostgreSQL 9.6+ підтримують цей синтаксис.\n",[3085,6714,6715],{"class":3087,"line":3118},[3085,6716,3468],{"emptyLinePlaceholder":3467},[3085,6718,6719,6721,6723],{"class":3087,"line":3132},[3085,6720,6341],{"class":3108},[3085,6722,4664],{"class":3108},[3085,6724,6725],{"class":3098}," listening_progresses\n",[3085,6727,6728,6731,6734],{"class":3087,"line":3146},[3085,6729,6730],{"class":3098},"    RENAME COLUMN position ",[3085,6732,6733],{"class":3108},"TO",[3085,6735,6736],{"class":3098}," position_seconds;\n",[3359,6738,6740],{"label":6739},"Альтернатива (для старих СУБД)",[3076,6741,6743],{"className":3078,"code":6742,"language":3080,"meta":3081,"style":3081},"-- Якщо СУБД не підтримує RENAME COLUMN:\n-- 1. Додати новий стовпець\nALTER TABLE listening_progresses\n    ADD COLUMN position_seconds INTEGER;\n\n-- 2. Скопіювати дані\nUPDATE listening_progresses\n   SET position_seconds = position;\n\n-- 3. Видалити старий стовпець\nALTER TABLE listening_progresses\n    DROP COLUMN position;\n",[2968,6744,6745,6750,6755,6763,6774,6778,6783,6789,6797,6801,6806,6814],{"__ignoreMap":3081},[3085,6746,6747],{"class":3087,"line":3088},[3085,6748,6749],{"class":3091},"-- Якщо СУБД не підтримує RENAME COLUMN:\n",[3085,6751,6752],{"class":3087,"line":3095},[3085,6753,6754],{"class":3091},"-- 1. Додати новий стовпець\n",[3085,6756,6757,6759,6761],{"class":3087,"line":3102},[3085,6758,6341],{"class":3108},[3085,6760,4664],{"class":3108},[3085,6762,6725],{"class":3098},[3085,6764,6765,6767,6770,6772],{"class":3087,"line":3118},[3085,6766,6351],{"class":3108},[3085,6768,6769],{"class":3098}," COLUMN position_seconds ",[3085,6771,3109],{"class":3108},[3085,6773,6377],{"class":3098},[3085,6775,6776],{"class":3087,"line":3132},[3085,6777,3468],{"emptyLinePlaceholder":3467},[3085,6779,6780],{"class":3087,"line":3146},[3085,6781,6782],{"class":3091},"-- 2. Скопіювати дані\n",[3085,6784,6785,6787],{"class":3087,"line":3160},[3085,6786,6410],{"class":3108},[3085,6788,6725],{"class":3098},[3085,6790,6791,6794],{"class":3087,"line":3174},[3085,6792,6793],{"class":3108},"   SET",[3085,6795,6796],{"class":3098}," position_seconds = position;\n",[3085,6798,6799],{"class":3087,"line":3188},[3085,6800,3468],{"emptyLinePlaceholder":3467},[3085,6802,6803],{"class":3087,"line":3200},[3085,6804,6805],{"class":3091},"-- 3. Видалити старий стовпець\n",[3085,6807,6808,6810,6812],{"class":3087,"line":3484},[3085,6809,6341],{"class":3108},[3085,6811,4664],{"class":3108},[3085,6813,6725],{"class":3098},[3085,6815,6816,6819],{"class":3087,"line":3502},[3085,6817,6818],{"class":3108},"    DROP",[3085,6820,6821],{"class":3098}," COLUMN position;\n",[6823,6824,6825,6828,6829,6831],"warning",{},[2998,6826,6827],{},"Перейменування стовпців — ризикована операція."," Будь-який Java-код, SQL-запит або View, що посилається на ",[2968,6830,4281],{}," за іменем, негайно зламається після виконання цієї міграції. Перед застосуванням переконайтеся, що всі посилання оновлені: DAO-класи, NamedQuery, звіти. У великих командах такі міграції супроводжуються окремим Pull Request, що оновлює весь відповідний код.",[3064,6833,6835],{"id":6834},"сценарій-4-зміна-типу-стовпця","Сценарій 4: Зміна типу стовпця",[2964,6837,6838,6839,6842,6843,6845,6846,6849],{},"Найнебезпечніший сценарій. Наприклад, ",[2968,6840,6841],{},"listening_progresses.position_seconds"," спочатку оголошений як ",[2968,6844,3109],{}," (до ~2.1 млрд секунд), але вирішено змінити на ",[2968,6847,6848],{},"BIGINT"," для теоретичного запасу. Процедура:",[3076,6851,6853],{"className":3078,"code":6852,"language":3080,"meta":3081,"style":3081},"-- V12__change_position_seconds_to_bigint.sql\n\n-- PostgreSQL: безпечна зміна INTEGER → BIGINT (автоматичне розширення)\nALTER TABLE listening_progresses\n    ALTER COLUMN position_seconds TYPE BIGINT;\n\n-- H2: ідентичний синтаксис підтримується\n",[2968,6854,6855,6860,6864,6869,6877,6892,6896],{"__ignoreMap":3081},[3085,6856,6857],{"class":3087,"line":3088},[3085,6858,6859],{"class":3091},"-- V12__change_position_seconds_to_bigint.sql\n",[3085,6861,6862],{"class":3087,"line":3095},[3085,6863,3468],{"emptyLinePlaceholder":3467},[3085,6865,6866],{"class":3087,"line":3102},[3085,6867,6868],{"class":3091},"-- PostgreSQL: безпечна зміна INTEGER → BIGINT (автоматичне розширення)\n",[3085,6870,6871,6873,6875],{"class":3087,"line":3118},[3085,6872,6341],{"class":3108},[3085,6874,4664],{"class":3108},[3085,6876,6725],{"class":3098},[3085,6878,6879,6882,6884,6887,6890],{"class":3087,"line":3132},[3085,6880,6881],{"class":3108},"    ALTER",[3085,6883,6769],{"class":3098},[3085,6885,6886],{"class":3108},"TYPE",[3085,6888,6889],{"class":3108}," BIGINT",[3085,6891,6377],{"class":3098},[3085,6893,6894],{"class":3087,"line":3146},[3085,6895,3468],{"emptyLinePlaceholder":3467},[3085,6897,6898],{"class":3087,"line":3160},[3085,6899,6900],{"class":3091},"-- H2: ідентичний синтаксис підтримується\n",[2964,6902,6903,6904,6907,6908,6911,6912,6915,6916,6919,6920,6922],{},"Зміна ",[2968,6905,6906],{},"INTEGER → BIGINT"," є ",[2998,6909,6910],{},"розширенням"," (widening conversion) і безпечна: всі існуючі значення поміщаються у ширший тип. Зворотна зміна (",[2968,6913,6914],{},"BIGINT → INTEGER",") є ",[2998,6917,6918],{},"звуженням"," і потенційно руйнівна: значення, що перевищують межі ",[2968,6921,3109],{},", будуть або відхилені, або усічені. Ніколи не виконуйте звужувальне перетворення без попередньої перевірки даних.",[3064,6924,6926],{"id":6925},"золоте-правило-міграція-append-only-лог","Золоте правило: Міграція — append-only лог",[2964,6928,6929],{},"Усі чотири сценарії поєднує одне правило, яке є фундаментом роботи з Flyway:",[3332,6931,6932,6935,6936,6938,6939,6942,6943,6946],{},[2998,6933,6934],{},"НІКОЛИ не редагуйте вже застосовану версіоновану міграцію."," Flyway зберігає контрольну суму (checksum) кожного виконаного файлу. Якщо вміст ",[2968,6937,4416],{}," змінити після виконання — Flyway виявить розбіжність і відмовиться стартувати з помилкою ",[2968,6940,6941],{},"ERROR: Validate failed: Migration checksum mismatch for migration version 4",". Єдиний правомірний спосіб виправити помилку в застосованій міграції — ",[2998,6944,6945],{},"написати нову міграцію",", що виправляє наслідки.",[2964,6948,6949],{},"Це правило забезпечує незмінність (immutability) лога міграцій — так само як комміти Git не редагуються після публікації. Весь стан схеми завжди відтворюється повторним виконанням міграцій від V1 до поточної версії включно.",[3064,6951,6953],{"id":6952},"мermaid-timeline-еволюції-схеми-аудіоплатформи","Мermaid: Timeline еволюції схеми аудіоплатформи",[6955,6956,6957],"mermaid",{},[3076,6958,6961],{"className":6959,"code":6960,"language":6955,"meta":3081,"style":3081},"language-mermaid shiki shiki-themes light-plus dark-plus dark-plus","timeline\n    title Еволюція схеми аудіоплатформи\n    section Початкове розгортання\n        V1 : ENUM + authors\n        V2 : genres\n        V3 : users\n        V4 : audiobooks\n        V5 : collections\n        V6 : audiobook_collection\n        V7 : audiobook_files\n        V8 : listening_progresses\n    section Seed Data\n        R__seed_genres : Початкові жанри\n    section Ітерація 2\n        V9  : ADD COLUMN language\n        V10 : CREATE TABLE reviews\n    section Ітерація 3\n        V11 : RENAME position → position_seconds\n        V12 : ALTER COLUMN TYPE BIGINT\n",[2968,6962,6963,6968,6973,6978,6983,6988,6993,6998,7003,7008,7013,7018,7023,7028,7033,7038,7043,7048,7053],{"__ignoreMap":3081},[3085,6964,6965],{"class":3087,"line":3088},[3085,6966,6967],{},"timeline\n",[3085,6969,6970],{"class":3087,"line":3095},[3085,6971,6972],{},"    title Еволюція схеми аудіоплатформи\n",[3085,6974,6975],{"class":3087,"line":3102},[3085,6976,6977],{},"    section Початкове розгортання\n",[3085,6979,6980],{"class":3087,"line":3118},[3085,6981,6982],{},"        V1 : ENUM + authors\n",[3085,6984,6985],{"class":3087,"line":3132},[3085,6986,6987],{},"        V2 : genres\n",[3085,6989,6990],{"class":3087,"line":3146},[3085,6991,6992],{},"        V3 : users\n",[3085,6994,6995],{"class":3087,"line":3160},[3085,6996,6997],{},"        V4 : audiobooks\n",[3085,6999,7000],{"class":3087,"line":3174},[3085,7001,7002],{},"        V5 : collections\n",[3085,7004,7005],{"class":3087,"line":3188},[3085,7006,7007],{},"        V6 : audiobook_collection\n",[3085,7009,7010],{"class":3087,"line":3200},[3085,7011,7012],{},"        V7 : audiobook_files\n",[3085,7014,7015],{"class":3087,"line":3484},[3085,7016,7017],{},"        V8 : listening_progresses\n",[3085,7019,7020],{"class":3087,"line":3502},[3085,7021,7022],{},"    section Seed Data\n",[3085,7024,7025],{"class":3087,"line":3519},[3085,7026,7027],{},"        R__seed_genres : Початкові жанри\n",[3085,7029,7030],{"class":3087,"line":3537},[3085,7031,7032],{},"    section Ітерація 2\n",[3085,7034,7035],{"class":3087,"line":3546},[3085,7036,7037],{},"        V9  : ADD COLUMN language\n",[3085,7039,7040],{"class":3087,"line":3791},[3085,7041,7042],{},"        V10 : CREATE TABLE reviews\n",[3085,7044,7045],{"class":3087,"line":3815},[3085,7046,7047],{},"    section Ітерація 3\n",[3085,7049,7050],{"class":3087,"line":3836},[3085,7051,7052],{},"        V11 : RENAME position → position_seconds\n",[3085,7054,7055],{"class":3087,"line":3848},[3085,7056,7057],{},"        V12 : ALTER COLUMN TYPE BIGINT\n",[2959,7059,7061],{"id":7060},"розширена-конфігурація-flyway","Розширена конфігурація Flyway",[2964,7063,7064,7065,3228,7067,3228,7069,7071],{},"У попередніх розділах ми використовували мінімальну конфігурацію Flyway з трьома параметрами: ",[2968,7066,3842],{},[2968,7068,3606],{},[2968,7070,3879],{},". Для виробничих проєктів набір параметрів значно ширший. Розглянемо найважливіші з них.",[3064,7073,7075],{"id":7074},"ключові-параметри-конфігурації","Ключові параметри конфігурації",[7077,7078,7079,7098,7106,7119,7123,7142],"field-group",{},[7080,7081,7083,7084,3228,7087,3279,7090,7093,7094,7097],"field",{"default":3592,"name":3606,"type":7082},"String[]","Перелік шляхів, де Flyway шукає міграційні скрипти. Підтримуються ",[2968,7085,7086],{},"classpath:",[2968,7088,7089],{},"filesystem:",[2968,7091,7092],{},"s3:",". Можна вказати кілька директорій: ",[2968,7095,7096],{},"locations(\"classpath:db/migration\", \"classpath:db/seed\")"," — корисно для розділення DDL та seed-даних.",[7080,7099,7101,7102,7105],{"default":3884,"name":3879,"type":7100},"boolean","Якщо ",[2968,7103,7104],{},"true"," — при першому запуску на вже існуючій (не порожній) базі Flyway автоматично встановить «базову лінію» (baseline) без виконання попередніх міграцій. Потрібен при підключенні Flyway до проєкту, що вже існує і має схему без історії міграцій.",[7080,7107,7101,7108,7110,7111,7113,7114,7116,7117,3234],{"default":3884,"name":3900,"type":7100},[2968,7109,7104],{}," — дозволяє виконання міграцій з «застарілими» версіями (наприклад, ",[2968,7112,4329],{}," після того, як ",[2968,7115,4411],{}," вже застосована). Корисно у великих командах, де кілька розробників паралельно готують міграції. У production краще залишати ",[2968,7118,3884],{},[7080,7120,7122],{"default":7104,"name":7121,"type":7100},"validateOnMigrate","При старті Flyway перевіряє контрольні суми всіх вже застосованих міграцій. Якщо файл змінено — Flyway відмовляється запускати програму. Це захист від «тихих» модифікацій схеми. Не вимикайте без вагомих причин.",[7080,7124,7126,7127,7130,7131,7134,7135,7137,7138,7141],{"default":7104,"name":7125,"type":7100},"cleanDisabled","Команда ",[2968,7128,7129],{},"flyway.clean()"," видаляє ",[2998,7132,7133],{},"всі"," об'єкти схеми. Корисна лише для тестів (",[2968,7136,5924],{}," у integration-тестах). У production завжди має бути ",[2968,7139,7140],{},"cleanDisabled = true",", щоб випадковий виклик не знищив базу.",[7080,7143,7147,7148,7151],{"default":7144,"name":7145,"type":7146},"{}","placeholders","Map\u003CString, String>","Дозволяє підставляти змінні у SQL-скриптах. Наприклад, ",[2968,7149,7150],{},"${schema}"," у скрипті замінюється на значення з конфігурації. Зручно для параметризації схем між середовищами.",[3064,7153,7155],{"id":7154},"повна-конфігурація-production-ready-клас","Повна конфігурація: Production-Ready клас",[2964,7157,7158,7159,7161],{},"Нижче наведено розширений варіант класу ",[2968,7160,4131],{},", що враховує типові вимоги production-середовища:",[3076,7163,7165],{"className":3625,"code":7164,"language":3627,"meta":3081,"style":3081},"import org.flywaydb.core.Flyway;\nimport org.flywaydb.core.api.output.MigrateResult;\nimport javax.sql.DataSource;\nimport org.h2.jdbcx.JdbcDataSource;\n\npublic class DatabaseConfig {\n\n    // Параметри підключення беруться з конфігурації (у реальному проєкті —\n    // з файлу properties або змінних середовища, не хардкодяться у коді).\n    private static final String DB_URL  = \"jdbc:h2:./data/audiobook_db;MODE=PostgreSQL\";\n    private static final String DB_USER = \"sa\";\n    private static final String DB_PASS = \"\";\n\n    public static DataSource createDataSource() {\n        JdbcDataSource ds = new JdbcDataSource();\n        ds.setURL(DB_URL);\n        ds.setUser(DB_USER);\n        ds.setPassword(DB_PASS);\n        return ds;\n    }\n\n    public static void runMigrations(DataSource dataSource) {\n        Flyway flyway = Flyway.configure()\n            .dataSource(dataSource)\n\n            // DDL-міграції та seed-дані у різних директоріях:\n            .locations(\"classpath:db/migration\", \"classpath:db/seed\")\n\n            // Захист від зміни вже застосованих міграцій:\n            .validateOnMigrate(true)\n\n            // Заборона видалення схеми у production:\n            .cleanDisabled(true)\n\n            // Не дозволяти виконання міграцій поза порядком:\n            .outOfOrder(false)\n\n            // Не встановлювати baseline автоматично (чиста БД):\n            .baselineOnMigrate(false)\n\n            .load();\n\n        MigrateResult result = flyway.migrate();\n\n        if (result.migrationsExecuted > 0) {\n            System.out.printf(\n                \"[Flyway] Applied %d migration(s). Current schema version: %s%n\",\n                result.migrationsExecuted,\n                result.targetSchemaVersion\n            );\n        } else {\n            System.out.println(\"[Flyway] Schema is up to date. No migrations applied.\");\n        }\n    }\n\n    public static DataSource initialize() {\n        DataSource ds = createDataSource();\n        runMigrations(ds);\n        return ds;\n    }\n}\n",[2968,7166,7167,7173,7180,7186,7192,7196,7206,7210,7215,7220,7243,7262,7281,7285,7297,7311,7322,7333,7344,7350,7354,7358,7376,7392,7400,7404,7409,7426,7430,7435,7447,7451,7456,7468,7472,7477,7489,7493,7498,7510,7514,7522,7526,7543,7547,7567,7582,7589,7600,7608,7614,7625,7645,7651,7656,7661,7674,7687,7694,7701,7706],{"__ignoreMap":3081},[3085,7168,7169,7171],{"class":3087,"line":3088},[3085,7170,3634],{"class":3108},[3085,7172,3637],{"class":3098},[3085,7174,7175,7177],{"class":3087,"line":3095},[3085,7176,3634],{"class":3108},[3085,7178,7179],{"class":3098}," org.flywaydb.core.api.output.MigrateResult;\n",[3085,7181,7182,7184],{"class":3087,"line":3102},[3085,7183,3634],{"class":3108},[3085,7185,3644],{"class":3098},[3085,7187,7188,7190],{"class":3087,"line":3118},[3085,7189,3634],{"class":3108},[3085,7191,3651],{"class":3098},[3085,7193,7194],{"class":3087,"line":3132},[3085,7195,3468],{"emptyLinePlaceholder":3467},[3085,7197,7198,7200,7202,7204],{"class":3087,"line":3146},[3085,7199,3660],{"class":3108},[3085,7201,3663],{"class":3108},[3085,7203,3667],{"class":3666},[3085,7205,3670],{"class":3098},[3085,7207,7208],{"class":3087,"line":3160},[3085,7209,3468],{"emptyLinePlaceholder":3467},[3085,7211,7212],{"class":3087,"line":3174},[3085,7213,7214],{"class":3091},"    // Параметри підключення беруться з конфігурації (у реальному проєкті —\n",[3085,7216,7217],{"class":3087,"line":3188},[3085,7218,7219],{"class":3091},"    // з файлу properties або змінних середовища, не хардкодяться у коді).\n",[3085,7221,7222,7225,7227,7230,7233,7236,7239,7241],{"class":3087,"line":3200},[3085,7223,7224],{"class":3108},"    private",[3085,7226,3682],{"class":3108},[3085,7228,7229],{"class":3108}," final",[3085,7231,7232],{"class":3666}," String",[3085,7234,7235],{"class":3705}," DB_URL",[3085,7237,7238],{"class":3098},"  = ",[3085,7240,3736],{"class":3735},[3085,7242,6377],{"class":3098},[3085,7244,7245,7247,7249,7251,7253,7256,7258,7260],{"class":3087,"line":3484},[3085,7246,7224],{"class":3108},[3085,7248,3682],{"class":3108},[3085,7250,7229],{"class":3108},[3085,7252,7232],{"class":3666},[3085,7254,7255],{"class":3705}," DB_USER",[3085,7257,3709],{"class":3098},[3085,7259,3753],{"class":3735},[3085,7261,6377],{"class":3098},[3085,7263,7264,7266,7268,7270,7272,7275,7277,7279],{"class":3087,"line":3502},[3085,7265,7224],{"class":3108},[3085,7267,3682],{"class":3108},[3085,7269,7229],{"class":3108},[3085,7271,7232],{"class":3666},[3085,7273,7274],{"class":3705}," DB_PASS",[3085,7276,3709],{"class":3098},[3085,7278,3769],{"class":3735},[3085,7280,6377],{"class":3098},[3085,7282,7283],{"class":3087,"line":3519},[3085,7284,3468],{"emptyLinePlaceholder":3467},[3085,7286,7287,7289,7291,7293,7295],{"class":3087,"line":3537},[3085,7288,3679],{"class":3108},[3085,7290,3682],{"class":3108},[3085,7292,3685],{"class":3666},[3085,7294,3689],{"class":3688},[3085,7296,3692],{"class":3098},[3085,7298,7299,7301,7303,7305,7307,7309],{"class":3087,"line":3546},[3085,7300,3702],{"class":3666},[3085,7302,3706],{"class":3705},[3085,7304,3709],{"class":3098},[3085,7306,3713],{"class":3712},[3085,7308,3716],{"class":3688},[3085,7310,3719],{"class":3098},[3085,7312,7313,7315,7317,7319],{"class":3087,"line":3791},[3085,7314,3724],{"class":3705},[3085,7316,3234],{"class":3098},[3085,7318,3729],{"class":3688},[3085,7320,7321],{"class":3098},"(DB_URL);\n",[3085,7323,7324,7326,7328,7330],{"class":3087,"line":3815},[3085,7325,3724],{"class":3705},[3085,7327,3234],{"class":3098},[3085,7329,3748],{"class":3688},[3085,7331,7332],{"class":3098},"(DB_USER);\n",[3085,7334,7335,7337,7339,7341],{"class":3087,"line":3836},[3085,7336,3724],{"class":3705},[3085,7338,3234],{"class":3098},[3085,7340,3764],{"class":3688},[3085,7342,7343],{"class":3098},"(DB_PASS);\n",[3085,7345,7346,7348],{"class":3087,"line":3848},[3085,7347,3776],{"class":3712},[3085,7349,3779],{"class":3098},[3085,7351,7352],{"class":3087,"line":3854},[3085,7353,3784],{"class":3098},[3085,7355,7356],{"class":3087,"line":3868},[3085,7357,3468],{"emptyLinePlaceholder":3467},[3085,7359,7360,7362,7364,7366,7368,7370,7372,7374],{"class":3087,"line":3874},[3085,7361,3679],{"class":3108},[3085,7363,3682],{"class":3108},[3085,7365,3798],{"class":3666},[3085,7367,3801],{"class":3688},[3085,7369,3732],{"class":3098},[3085,7371,3806],{"class":3666},[3085,7373,3809],{"class":3705},[3085,7375,3812],{"class":3098},[3085,7377,7378,7380,7382,7384,7386,7388,7390],{"class":3087,"line":3889},[3085,7379,3818],{"class":3666},[3085,7381,3821],{"class":3705},[3085,7383,3709],{"class":3098},[3085,7385,3010],{"class":3705},[3085,7387,3234],{"class":3098},[3085,7389,3830],{"class":3688},[3085,7391,3833],{"class":3098},[3085,7393,7394,7396,7398],{"class":3087,"line":3895},[3085,7395,3839],{"class":3098},[3085,7397,3842],{"class":3688},[3085,7399,3845],{"class":3098},[3085,7401,7402],{"class":3087,"line":3909},[3085,7403,3468],{"emptyLinePlaceholder":3467},[3085,7405,7406],{"class":3087,"line":3919},[3085,7407,7408],{"class":3091},"            // DDL-міграції та seed-дані у різних директоріях:\n",[3085,7410,7411,7413,7415,7417,7419,7421,7424],{"class":3087,"line":3924},[3085,7412,3839],{"class":3098},[3085,7414,3606],{"class":3688},[3085,7416,3732],{"class":3098},[3085,7418,3863],{"class":3735},[3085,7420,3228],{"class":3098},[3085,7422,7423],{"class":3735},"\"classpath:db/seed\"",[3085,7425,3203],{"class":3098},[3085,7427,7428],{"class":3087,"line":3930},[3085,7429,3468],{"emptyLinePlaceholder":3467},[3085,7431,7432],{"class":3087,"line":3951},[3085,7433,7434],{"class":3091},"            // Захист від зміни вже застосованих міграцій:\n",[3085,7436,7437,7439,7441,7443,7445],{"class":3087,"line":3970},[3085,7438,3839],{"class":3098},[3085,7440,7121],{"class":3688},[3085,7442,3732],{"class":3098},[3085,7444,7104],{"class":3108},[3085,7446,3203],{"class":3098},[3085,7448,7449],{"class":3087,"line":3979},[3085,7450,3468],{"emptyLinePlaceholder":3467},[3085,7452,7453],{"class":3087,"line":3992},[3085,7454,7455],{"class":3091},"            // Заборона видалення схеми у production:\n",[3085,7457,7458,7460,7462,7464,7466],{"class":3087,"line":4002},[3085,7459,3839],{"class":3098},[3085,7461,7125],{"class":3688},[3085,7463,3732],{"class":3098},[3085,7465,7104],{"class":3108},[3085,7467,3203],{"class":3098},[3085,7469,7470],{"class":3087,"line":4008},[3085,7471,3468],{"emptyLinePlaceholder":3467},[3085,7473,7474],{"class":3087,"line":4013},[3085,7475,7476],{"class":3091},"            // Не дозволяти виконання міграцій поза порядком:\n",[3085,7478,7479,7481,7483,7485,7487],{"class":3087,"line":4018},[3085,7480,3839],{"class":3098},[3085,7482,3900],{"class":3688},[3085,7484,3732],{"class":3098},[3085,7486,3884],{"class":3108},[3085,7488,3203],{"class":3098},[3085,7490,7491],{"class":3087,"line":4032},[3085,7492,3468],{"emptyLinePlaceholder":3467},[3085,7494,7495],{"class":3087,"line":4047},[3085,7496,7497],{"class":3091},"            // Не встановлювати baseline автоматично (чиста БД):\n",[3085,7499,7500,7502,7504,7506,7508],{"class":3087,"line":4056},[3085,7501,3839],{"class":3098},[3085,7503,3879],{"class":3688},[3085,7505,3732],{"class":3098},[3085,7507,3884],{"class":3108},[3085,7509,3203],{"class":3098},[3085,7511,7512],{"class":3087,"line":4063},[3085,7513,3468],{"emptyLinePlaceholder":3467},[3085,7515,7516,7518,7520],{"class":3087,"line":4068},[3085,7517,3839],{"class":3098},[3085,7519,3914],{"class":3688},[3085,7521,3719],{"class":3098},[3085,7523,7524],{"class":3087,"line":5738},[3085,7525,3468],{"emptyLinePlaceholder":3467},[3085,7527,7528,7531,7533,7535,7537,7539,7541],{"class":3087,"line":5748},[3085,7529,7530],{"class":3666},"        MigrateResult",[3085,7532,3936],{"class":3705},[3085,7534,3709],{"class":3098},[3085,7536,3941],{"class":3705},[3085,7538,3234],{"class":3098},[3085,7540,3946],{"class":3688},[3085,7542,3719],{"class":3098},[3085,7544,7545],{"class":3087,"line":5763},[3085,7546,3468],{"emptyLinePlaceholder":3467},[3085,7548,7549,7552,7554,7557,7559,7561,7563,7565],{"class":3087,"line":5776},[3085,7550,7551],{"class":3712},"        if",[3085,7553,3307],{"class":3098},[3085,7555,7556],{"class":3705},"result",[3085,7558,3234],{"class":3098},[3085,7560,3987],{"class":3705},[3085,7562,5657],{"class":3098},[3085,7564,4952],{"class":4700},[3085,7566,3812],{"class":3098},[3085,7568,7569,7572,7574,7576,7578,7580],{"class":3087,"line":5789},[3085,7570,7571],{"class":3705},"            System",[3085,7573,3234],{"class":3098},[3085,7575,3959],{"class":3705},[3085,7577,3234],{"class":3098},[3085,7579,3964],{"class":3688},[3085,7581,3967],{"class":3098},[3085,7583,7584,7587],{"class":3087,"line":5797},[3085,7585,7586],{"class":3735},"                \"[Flyway] Applied %d migration(s). Current schema version: %s%n\"",[3085,7588,3976],{"class":3098},[3085,7590,7591,7594,7596,7598],{"class":3087,"line":5802},[3085,7592,7593],{"class":3705},"                result",[3085,7595,3234],{"class":3098},[3085,7597,3987],{"class":3705},[3085,7599,3976],{"class":3098},[3085,7601,7602,7604,7606],{"class":3087,"line":5818},[3085,7603,7593],{"class":3705},[3085,7605,3234],{"class":3098},[3085,7607,3999],{"class":3705},[3085,7609,7611],{"class":3087,"line":7610},50,[3085,7612,7613],{"class":3098},"            );\n",[3085,7615,7617,7620,7623],{"class":3087,"line":7616},51,[3085,7618,7619],{"class":3098},"        } ",[3085,7621,7622],{"class":3712},"else",[3085,7624,3670],{"class":3098},[3085,7626,7628,7630,7632,7634,7636,7638,7640,7643],{"class":3087,"line":7627},52,[3085,7629,7571],{"class":3705},[3085,7631,3234],{"class":3098},[3085,7633,3959],{"class":3705},[3085,7635,3234],{"class":3098},[3085,7637,4160],{"class":3688},[3085,7639,3732],{"class":3098},[3085,7641,7642],{"class":3735},"\"[Flyway] Schema is up to date. No migrations applied.\"",[3085,7644,3739],{"class":3098},[3085,7646,7648],{"class":3087,"line":7647},53,[3085,7649,7650],{"class":3098},"        }\n",[3085,7652,7654],{"class":3087,"line":7653},54,[3085,7655,3784],{"class":3098},[3085,7657,7659],{"class":3087,"line":7658},55,[3085,7660,3468],{"emptyLinePlaceholder":3467},[3085,7662,7664,7666,7668,7670,7672],{"class":3087,"line":7663},56,[3085,7665,3679],{"class":3108},[3085,7667,3682],{"class":3108},[3085,7669,3685],{"class":3666},[3085,7671,4027],{"class":3688},[3085,7673,3692],{"class":3098},[3085,7675,7677,7679,7681,7683,7685],{"class":3087,"line":7676},57,[3085,7678,4035],{"class":3666},[3085,7680,3706],{"class":3705},[3085,7682,3709],{"class":3098},[3085,7684,4042],{"class":3688},[3085,7686,3719],{"class":3098},[3085,7688,7690,7692],{"class":3087,"line":7689},58,[3085,7691,4050],{"class":3688},[3085,7693,4053],{"class":3098},[3085,7695,7697,7699],{"class":3087,"line":7696},59,[3085,7698,3776],{"class":3712},[3085,7700,3779],{"class":3098},[3085,7702,7704],{"class":3087,"line":7703},60,[3085,7705,3784],{"class":3098},[3085,7707,7709],{"class":3087,"line":7708},61,[3085,7710,3582],{"class":3098},[2964,7712,6380,7713,7716,7717,7719,7720,7723],{},[2968,7714,7715],{},"MigrateResult",": об'єкт результату повертає кількість виконаних міграцій (",[2968,7718,3987],{},") та поточну версію схеми (",[2968,7721,7722],{},"targetSchemaVersion","). Логування цих значень при старті є хорошою практикою — воно одразу показує, в якому стані перебуває схема.",[3064,7725,7727,7728,3279,7731],{"id":7726},"використання-у-тестах-cleandisabledfalse-та-clean","Використання у тестах: ",[2968,7729,7730],{},"cleanDisabled(false)",[2968,7732,7733],{},"clean()",[2964,7735,7736,7737,7739],{},"Для інтеграційних тестів, де кожен тест потребує «чистої» бази, Flyway надає команду ",[2968,7738,7733],{},", яка видаляє всі об'єкти схеми. Типова структура тестового хелпера:",[3076,7741,7743],{"className":3625,"code":7742,"language":3627,"meta":3081,"style":3081},"public class TestDatabaseConfig {\n\n    private static DataSource dataSource;\n\n    public static DataSource getTestDataSource() {\n        if (dataSource == null) {\n            // In-memory H2: дані зникають після закриття з'єднання\n            JdbcDataSource ds = new JdbcDataSource();\n            ds.setURL(\"jdbc:h2:mem:testdb;MODE=PostgreSQL;DB_CLOSE_DELAY=-1\");\n            ds.setUser(\"sa\");\n            ds.setPassword(\"\");\n            dataSource = ds;\n        }\n        return dataSource;\n    }\n\n    /**\n     * Скидає та повторно застосовує всі міграції.\n     * Викликається у @BeforeEach або @BeforeAll у JUnit-тестах.\n     */\n    public static void resetSchema() {\n        Flyway flyway = Flyway.configure()\n            .dataSource(getTestDataSource())\n            .locations(\"classpath:db/migration\")\n            .cleanDisabled(false) // дозволено лише для тестів!\n            .load();\n\n        flyway.clean();    // видаляємо всі таблиці\n        flyway.migrate();  // застосовуємо міграції з нуля\n    }\n}\n",[2968,7744,7745,7756,7760,7772,7776,7789,7801,7806,7821,7837,7851,7865,7870,7874,7881,7885,7889,7894,7899,7904,7909,7922,7938,7952,7964,7979,7987,7991,8007,8021,8025],{"__ignoreMap":3081},[3085,7746,7747,7749,7751,7754],{"class":3087,"line":3088},[3085,7748,3660],{"class":3108},[3085,7750,3663],{"class":3108},[3085,7752,7753],{"class":3666}," TestDatabaseConfig",[3085,7755,3670],{"class":3098},[3085,7757,7758],{"class":3087,"line":3095},[3085,7759,3468],{"emptyLinePlaceholder":3467},[3085,7761,7762,7764,7766,7768,7770],{"class":3087,"line":3102},[3085,7763,7224],{"class":3108},[3085,7765,3682],{"class":3108},[3085,7767,3685],{"class":3666},[3085,7769,3809],{"class":3705},[3085,7771,6377],{"class":3098},[3085,7773,7774],{"class":3087,"line":3118},[3085,7775,3468],{"emptyLinePlaceholder":3467},[3085,7777,7778,7780,7782,7784,7787],{"class":3087,"line":3132},[3085,7779,3679],{"class":3108},[3085,7781,3682],{"class":3108},[3085,7783,3685],{"class":3666},[3085,7785,7786],{"class":3688}," getTestDataSource",[3085,7788,3692],{"class":3098},[3085,7790,7791,7793,7796,7799],{"class":3087,"line":3146},[3085,7792,7551],{"class":3712},[3085,7794,7795],{"class":3098}," (dataSource == ",[3085,7797,7798],{"class":3108},"null",[3085,7800,3812],{"class":3098},[3085,7802,7803],{"class":3087,"line":3160},[3085,7804,7805],{"class":3091},"            // In-memory H2: дані зникають після закриття з'єднання\n",[3085,7807,7808,7811,7813,7815,7817,7819],{"class":3087,"line":3174},[3085,7809,7810],{"class":3666},"            JdbcDataSource",[3085,7812,3706],{"class":3705},[3085,7814,3709],{"class":3098},[3085,7816,3713],{"class":3712},[3085,7818,3716],{"class":3688},[3085,7820,3719],{"class":3098},[3085,7822,7823,7826,7828,7830,7832,7835],{"class":3087,"line":3188},[3085,7824,7825],{"class":3705},"            ds",[3085,7827,3234],{"class":3098},[3085,7829,3729],{"class":3688},[3085,7831,3732],{"class":3098},[3085,7833,7834],{"class":3735},"\"jdbc:h2:mem:testdb;MODE=PostgreSQL;DB_CLOSE_DELAY=-1\"",[3085,7836,3739],{"class":3098},[3085,7838,7839,7841,7843,7845,7847,7849],{"class":3087,"line":3200},[3085,7840,7825],{"class":3705},[3085,7842,3234],{"class":3098},[3085,7844,3748],{"class":3688},[3085,7846,3732],{"class":3098},[3085,7848,3753],{"class":3735},[3085,7850,3739],{"class":3098},[3085,7852,7853,7855,7857,7859,7861,7863],{"class":3087,"line":3484},[3085,7854,7825],{"class":3705},[3085,7856,3234],{"class":3098},[3085,7858,3764],{"class":3688},[3085,7860,3732],{"class":3098},[3085,7862,3769],{"class":3735},[3085,7864,3739],{"class":3098},[3085,7866,7867],{"class":3087,"line":3502},[3085,7868,7869],{"class":3098},"            dataSource = ds;\n",[3085,7871,7872],{"class":3087,"line":3519},[3085,7873,7650],{"class":3098},[3085,7875,7876,7878],{"class":3087,"line":3537},[3085,7877,3776],{"class":3712},[3085,7879,7880],{"class":3098}," dataSource;\n",[3085,7882,7883],{"class":3087,"line":3546},[3085,7884,3784],{"class":3098},[3085,7886,7887],{"class":3087,"line":3791},[3085,7888,3468],{"emptyLinePlaceholder":3467},[3085,7890,7891],{"class":3087,"line":3815},[3085,7892,7893],{"class":3091},"    /**\n",[3085,7895,7896],{"class":3087,"line":3836},[3085,7897,7898],{"class":3091},"     * Скидає та повторно застосовує всі міграції.\n",[3085,7900,7901],{"class":3087,"line":3848},[3085,7902,7903],{"class":3091},"     * Викликається у @BeforeEach або @BeforeAll у JUnit-тестах.\n",[3085,7905,7906],{"class":3087,"line":3854},[3085,7907,7908],{"class":3091},"     */\n",[3085,7910,7911,7913,7915,7917,7920],{"class":3087,"line":3868},[3085,7912,3679],{"class":3108},[3085,7914,3682],{"class":3108},[3085,7916,3798],{"class":3666},[3085,7918,7919],{"class":3688}," resetSchema",[3085,7921,3692],{"class":3098},[3085,7923,7924,7926,7928,7930,7932,7934,7936],{"class":3087,"line":3874},[3085,7925,3818],{"class":3666},[3085,7927,3821],{"class":3705},[3085,7929,3709],{"class":3098},[3085,7931,3010],{"class":3705},[3085,7933,3234],{"class":3098},[3085,7935,3830],{"class":3688},[3085,7937,3833],{"class":3098},[3085,7939,7940,7942,7944,7946,7949],{"class":3087,"line":3889},[3085,7941,3839],{"class":3098},[3085,7943,3842],{"class":3688},[3085,7945,3732],{"class":3098},[3085,7947,7948],{"class":3688},"getTestDataSource",[3085,7950,7951],{"class":3098},"())\n",[3085,7953,7954,7956,7958,7960,7962],{"class":3087,"line":3895},[3085,7955,3839],{"class":3098},[3085,7957,3606],{"class":3688},[3085,7959,3732],{"class":3098},[3085,7961,3863],{"class":3735},[3085,7963,3203],{"class":3098},[3085,7965,7966,7968,7970,7972,7974,7976],{"class":3087,"line":3909},[3085,7967,3839],{"class":3098},[3085,7969,7125],{"class":3688},[3085,7971,3732],{"class":3098},[3085,7973,3884],{"class":3108},[3085,7975,4813],{"class":3098},[3085,7977,7978],{"class":3091},"// дозволено лише для тестів!\n",[3085,7980,7981,7983,7985],{"class":3087,"line":3919},[3085,7982,3839],{"class":3098},[3085,7984,3914],{"class":3688},[3085,7986,3719],{"class":3098},[3085,7988,7989],{"class":3087,"line":3924},[3085,7990,3468],{"emptyLinePlaceholder":3467},[3085,7992,7993,7996,7998,8001,8004],{"class":3087,"line":3930},[3085,7994,7995],{"class":3705},"        flyway",[3085,7997,3234],{"class":3098},[3085,7999,8000],{"class":3688},"clean",[3085,8002,8003],{"class":3098},"();    ",[3085,8005,8006],{"class":3091},"// видаляємо всі таблиці\n",[3085,8008,8009,8011,8013,8015,8018],{"class":3087,"line":3951},[3085,8010,7995],{"class":3705},[3085,8012,3234],{"class":3098},[3085,8014,3946],{"class":3688},[3085,8016,8017],{"class":3098},"();  ",[3085,8019,8020],{"class":3091},"// застосовуємо міграції з нуля\n",[3085,8022,8023],{"class":3087,"line":3970},[3085,8024,3784],{"class":3098},[3085,8026,8027],{"class":3087,"line":3979},[3085,8028,3582],{"class":3098},[6823,8030,8031,8032,8034,8035,8037,8038,8040,8041,8043,8044,8047],{},"Метод ",[2968,8033,7733],{}," знищує ",[2998,8036,7133],{}," об'єкти схеми без підтвердження. Ніколи не викликайте його у production-коді. Якщо ",[2968,8039,7140],{}," (за замовчуванням з Flyway 9+), виклик ",[2968,8042,7733],{}," підніме виняток ",[2968,8045,8046],{},"FlywayException",". Це навмисний захист від катастрофічних помилок.",[3057,8049],{},[2959,8051,8053],{"id":8052},"практичні-завдання","Практичні завдання",[4567,8055,8056,8060,8063,8099,8104,8132,8136,8143,8165,8169,8202,8206,8209],{},[3064,8057,8059],{"id":8058},"рівень-1-базовий-читання-та-аналіз-міграцій","Рівень 1 — Базовий: Читання та аналіз міграцій",[2964,8061,8062],{},"Дано такий файл міграції:",[3076,8064,8066],{"className":3078,"code":8065,"language":3080,"meta":3081,"style":3081},"-- V13__add_is_public_to_collections.sql\nALTER TABLE collections\n    ADD COLUMN is_public BOOLEAN NOT NULL DEFAULT FALSE;\n",[2968,8067,8068,8073,8082],{"__ignoreMap":3081},[3085,8069,8070],{"class":3087,"line":3088},[3085,8071,8072],{"class":3091},"-- V13__add_is_public_to_collections.sql\n",[3085,8074,8075,8077,8079],{"class":3087,"line":3095},[3085,8076,6341],{"class":3108},[3085,8078,4664],{"class":3108},[3085,8080,8081],{"class":3098}," collections\n",[3085,8083,8084,8086,8089,8091,8094,8096],{"class":3087,"line":3102},[3085,8085,6351],{"class":3108},[3085,8087,8088],{"class":3098}," COLUMN is_public ",[3085,8090,3194],{"class":3108},[3085,8092,8093],{"class":3108}," NOT NULL",[3085,8095,6371],{"class":3108},[3085,8097,8098],{"class":3098}," FALSE;\n",[2964,8100,8101],{},[2998,8102,8103],{},"Завдання:",[8105,8106,8107,8110,8120,8123],"ol",{},[3024,8108,8109],{},"Яка версія схеми буде після застосування цієї міграції (якщо до неї існували V1–V12)?",[3024,8111,8112,8113,8116,8117,8119],{},"Що означає ",[2968,8114,8115],{},"DEFAULT FALSE","? Яке значення отримають усі наявні рядки таблиці ",[2968,8118,4436],{},"?",[3024,8121,8122],{},"Чи є це безпечною «зворотньо сумісною» зміною? Пояснити.",[3024,8124,8125,8126,8129,8130,8119],{},"Як змінити цей скрипт, щоб поле ",[2968,8127,8128],{},"is_public"," могло бути ",[2968,8131,6403],{},[3064,8133,8135],{"id":8134},"рівень-2-проектування-новий-функціонал-через-міграції","Рівень 2 — Проектування: Новий функціонал через міграції",[2964,8137,8138,8139,8142],{},"Платформа додає систему ",[2998,8140,8141],{},"сповіщень"," (Notification). Вимоги:",[3021,8144,8145,8148,8159,8162],{},[3024,8146,8147],{},"Сповіщення прив'язане до користувача.",[3024,8149,8150,8151,8154,8155,8158],{},"Є два типи: ",[2968,8152,8153],{},"new_audiobook"," (вийшла нова книга автора, якого слідкує користувач) та ",[2968,8156,8157],{},"progress_reminder"," (нагадування продовжити слухання).",[3024,8160,8161],{},"Сповіщення може бути прочитаним або непрочитаним.",[3024,8163,8164],{},"Зберігається текст сповіщення та час його створення.",[2964,8166,8167],{},[2998,8168,8103],{},[8105,8170,8171,8178,8185,8199],{},[3024,8172,8173,8174,8177],{},"Спроектуйте таблицю ",[2968,8175,8176],{},"notifications",". Визначте типи даних і обмеження.",[3024,8179,8180,8181,8184],{},"Напишіть міграцію ",[2968,8182,8183],{},"V14__create_notifications.sql"," з повним DDL.",[3024,8186,8187,8188,8191,8192,8194,8195,8198],{},"Для поля типу сповіщення використайте або ",[2968,8189,8190],{},"ENUM",", або ",[2968,8193,3166],{}," із ",[2968,8196,8197],{},"CHECK",". Обґрунтуйте вибір.",[3024,8200,8201],{},"Яких індексів потребує таблиця? Додайте їх до міграції.",[3064,8203,8205],{"id":8204},"рівень-3-архітектура-повний-міграційний-цикл","Рівень 3 — Архітектура: Повний міграційний цикл",[2964,8207,8208],{},"Реалізуйте повний цикл міграцій для нового Java-проєкту аудіоплатформи:",[8105,8210,8211,8214,8227,8230,8236,8278],{},[3024,8212,8213],{},"Підключіть Flyway до проєкту (Maven або Gradle залежність).",[3024,8215,8216,8217,8219,8220,8223,8224,8226],{},"Створіть клас ",[2968,8218,4131],{}," з методом ",[2968,8221,8222],{},"initialize()",", що повертає ",[2968,8225,3806],{}," з уже застосованими міграціями.",[3024,8228,8229],{},"Напишіть міграції V1–V8 для базової схеми аудіоплатформи (використовуйте DDL із попередньої статті).",[3024,8231,8232,8233,8235],{},"Додайте ",[2968,8234,5938],{}," із п'ятьма жанрами.",[3024,8237,8238,8239,8241,8242],{},"Запустіть програму та перевірте стан ",[2968,8240,3073],{}," через H2 Console або SQL-запит:\n",[3076,8243,8245],{"className":3078,"code":8244,"language":3080,"meta":3081,"style":3081},"SELECT version, description, success, installed_on\nFROM flyway_schema_history\nORDER BY installed_rank;\n",[2968,8246,8247,8262,8270],{"__ignoreMap":3081},[3085,8248,8249,8252,8255,8257,8259],{"class":3087,"line":3088},[3085,8250,8251],{"class":3108},"SELECT",[3085,8253,8254],{"class":3108}," version",[3085,8256,3228],{"class":3098},[3085,8258,6038],{"class":3108},[3085,8260,8261],{"class":3098},", success, installed_on\n",[3085,8263,8264,8267],{"class":3087,"line":3095},[3085,8265,8266],{"class":3108},"FROM",[3085,8268,8269],{"class":3098}," flyway_schema_history\n",[3085,8271,8272,8275],{"class":3087,"line":3102},[3085,8273,8274],{"class":3108},"ORDER BY",[3085,8276,8277],{"class":3098}," installed_rank;\n",[3024,8279,8180,8280,8283],{},[2968,8281,8282],{},"V9__add_language_to_audiobooks.sql"," та переконайтеся, що повторний запуск програми застосовує лише V9 (попередні 8 вже в журналі).",[3057,8285],{},[2959,8287,8289],{"id":8288},"підсумок","Підсумок",[2964,8291,8292,8293,8295],{},"Еволюція схеми бази даних — невід'ємна частина будь-якого живого проєкту. Ручне управління ",[2968,8294,2993],{}," у production, синхронізація через чат або «я пам'ятаю, що треба зробити» — це підходи, які руйнуються під тиском реальних команд і реального часу.",[2964,8297,8298,8299,5910],{},"Flyway розв'язує цю проблему, перетворюючи схему на ",[2998,8300,8301],{},"версіонований, відтворюваний артефакт",[3021,8303,8304,8307,8312,8318,8324],{},[3024,8305,8306],{},"Кожна зміна — окремий SQL-файл у Git, зі змістовною назвою та чіткою версією.",[3024,8308,8309,8311],{},[2968,8310,3073],{}," — незмінний журнал, що завжди показує, в якому стані перебуває схема на будь-якому середовищі.",[3024,8313,8314,8315,8317],{},"Версіоновані міграції (",[2968,8316,5974],{},") застосовуються рівно один раз і не редагуються після виконання.",[3024,8319,8320,8321,8323],{},"Повторювані міграції (",[2968,8322,5978],{},") ідемпотентно оновлюють довідники при зміні їх вмісту.",[3024,8325,8326],{},"Програмний API Flyway дозволяє інтегрувати міграції у будь-який Java-проєкт без Spring та інших фреймворків.",[3013,8328,8329,8334,8339],{},[3016,8330,8333],{"icon":8331,"title":8332},"i-heroicons-code-bracket","Схема — це код","Міграційні файли живуть у Git поруч із Java-кодом. Версія схеми завжди синхронізована з версією додатку.",[3016,8335,8338],{"icon":8336,"title":8337},"i-heroicons-lock-closed","Незмінність журналу","Застосована міграція — це незмінний факт. 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