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ADO.NET ntity Framework 是微軟以 ADO.NET 為基礎所發展出來的物件關聯對應 (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。

ADO.NET Entity Framework 以 Entity Data Model (EDM) 為主，將資料邏輯層切分為三塊，分

別為 Conceptual Schema, Mapping Schema 與 Storage Schema 三層，其上還有 Entity Client，

Object Context 以及 LINQ 可以使用。

英文說明:



In this course you'll learn about the various means

that Entity Framework provides for querying such as

LINQ to Entities and Entity SQL. Then you'll dig further

into using LINQ to Entities, the most commonly used

query mechanism in Entity Framework.



Note: We have decided to include 3 different video versions

for each chapter depending on what kind of device

(Smartphone, PC etc.) you prefer for playback.