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Posted 13 Jul 2012

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Using Oracle with EntityFramework 4

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2.60/5 (9 votes)
13 Jul 2012MIT


I will introduce how to use Oracle with Entity Framework.


You should have VS2010, .NET Framework 4 or higher, Oracle 10g or higher version, ODAC 11.2 Release 4 ( with Oracle Developer Tools for Visual Studio (download from

Using the Code

First, create a table in your Oracle database:

CREATE TABLE test_tbl (
     id   INT,
     val  VARCHAR(10),
     PRIMARY KEY (id)

Now try to connect to Oracle with EF:

  1. Create project Open VS2010, create a console applicationNew | Project | | Console application
  2. Add ADO.NET Entity Data Model Right click the project | Add | New Item , Click "ADO.NET Entity Data Model ", and the default name is "Model1.edmx" , click "Add"

Image 1

Choose "Generate from database", click "Next".

Image 2

Click "New Connection... " setup the connection to the Oracle.

Image 3

Choose the table and click "Finish".

VS2O1O will generate the entities for you.

Image 4

Now , write code like the following:

static void Main(string[] args)
    using (Entities ctx = new Entities())
        var rst = from tbl in ctx.TEST_TBL
                  select tbl;
        foreach (var tbl in rst)

You can get values from Oracle.

Points of Interest

By now, we know how to deal with single table, further, we would research more table and the relationship between tables (one-to-one, one-to-many, etc.).


  • 2012.07.13 V1.0


This article, along with any associated source code and files, is licensed under The MIT License


About the Author

Web Developer
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Comments and Discussions

QuestionPoorest article ever Pin
giaophong2-May-16 23:07
Membergiaophong2-May-16 23:07 
QuestionEntity Framework in Oracle Database Pin
Member 1203526514-Oct-15 18:36
MemberMember 1203526514-Oct-15 18:36 
QuestionUpdate the entity - Regarding... Pin
Member 900750224-Jun-15 7:18
MemberMember 900750224-Jun-15 7:18 
GeneralMy vote of 1 Pin
FrankXhaw9-Dec-14 15:33
professionalFrankXhaw9-Dec-14 15:33 
GeneralMy vote of 4 Pin
Member 1082968027-May-14 3:24
MemberMember 1082968027-May-14 3:24 
Question[My vote of 1] Poor article Pin
kiquenet.com12-Aug-13 21:57
professionalkiquenet.com12-Aug-13 21:57 
AnswerRe: [My vote of 1] Poor article Pin
DaveWilliams11064-Nov-14 3:59
MemberDaveWilliams11064-Nov-14 3:59 
GeneralMy vote of 5 Pin
Willie Lassiter15-Feb-13 12:30
MemberWillie Lassiter15-Feb-13 12:30 
GeneralMy vote of 5 Pin
Dan Randolph17-Dec-12 7:08
MemberDan Randolph17-Dec-12 7:08 
Good tip. It is not always easy to evaluate the massive documentation on Oracles site.
GeneralMy vote of 1 Pin
Klaus Luedenscheidt13-Jul-12 18:13
MemberKlaus Luedenscheidt13-Jul-12 18:13 
GeneralRe: My vote of 1 Pin
wshcdr13-Jul-12 18:27
Memberwshcdr13-Jul-12 18:27 
GeneralMy vote of 1 Pin
ashved13-Jul-12 17:57
Memberashved13-Jul-12 17:57 

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