Click here to Skip to main content
Click here to Skip to main content

Entity framework

, 11 Oct 2013 CPOL
Rate this:
Please Sign up or sign in to vote.
What is Entity Framework?ADO.NET Entity Framework is an object-relational mapping (ORM) framework for the .NET Framework. Basically it represents the

Editorial Note

This articles was originally at wiki.asp.net but has now been given a new home on CodeProject. Editing rights for this article has been set at Bronze or above, so please go in and edit and update this article to keep it fresh and relevant.

What is Entity Framework?

ADO.NET Entity Framework is an object-relational mapping (ORM) framework for the .NET Framework. Basically it represents the relational (logical) schema of the data that is stored in a database and presents its conceptual schema to the application.


In relational schema the attribute of the table is hardcoded into application. This is the major disadvantge of this,if you change the schema you also need to change your application.


To avoid this problem, Entity framework is maintaining the mapping of logical schema into the physical schema that defines how the data is structured and stored on the disk. The job of the database system and client side data access mechanisms are shielded from it as the database exposes the data in the way specified by its logical schema.

Microsoft released first version of Entity Framework was included with .NET Framework 3.5 Service Pack 1 and Visual Studio 2008 Service Pack 1, released on 11 August 2008.

The second version of Entity Framework was released as part of .NET 4.0 on 12th April 2010.

For more details:

http://msdn.microsoft.com/en-us/library/aa697427%28VS.80%29.aspx#ado.netenfrmovw_topic4

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

ASP.NET Community

United States United States
The ASP.NET Wiki was started by Scott Hanselman in February of 2008. The idea is that folks spend a lot of time trolling the blogs, googlinglive-searching for answers to common "How To" questions. There's piles of fantastic community-created and MSFT-created content out there, but if it's not found by a search engine and the right combination of keywords, it's often lost.
 
The ASP.NET Wiki articles moved to CodeProject in October 2013 and will live on, loved, protected and updated by the community.
Group type: Collaborative Group

491 members


Comments and Discussions

 
SuggestionOutdated information PinmemberKlaus Luedenscheidt11-Oct-13 18:29 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Terms of Use | Mobile
Web01 | 2.8.150301.1 | Last Updated 11 Oct 2013
Article Copyright 2013 by ASP.NET Community
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid