ADO.NET Entity Framework

fmms 12年前發布 | 24K 次閱讀 .NET .NET開發

ADO.NET Entity Framework 是微軟以 ADO.NET 為基礎所發展出來的對象關系對應 (O/R Mapping) 解決方案，早期被稱為 ObjectSpace，現已經包含在 Visual Studio 2008 Service Pack 1 以及 .NET Framework 3.5 Service Pack 1 中發表。

  • Applications can work in terms of a more application-centric conceptual model, including types with inheritance, complex members, and relationships.

  • Applications are freed from hard-coded dependencies on a particular data engine or storage schema.

  • Mappings between the conceptual model and the storage-specific schema can change without changing the application code.

  • Developers can work with a consistent application object model that can be mapped to various storage schemas, possibly implemented in different database management systems.

  • Multiple conceptual models can be mapped to a single storage schema.

  • Language-integrated query (LINQ) support provides compile-time syntax validation for queries against a conceptual model.

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