VS2010 + Oracle driver: ORA-12154: TSN:could not resolve the connect identifier specified

Question

I am using:

• Visual Studio 2010
• .Net Framework Data Provider for Oracle
• Oracle Developer Tools for Visual Studio (from Oracle\'s website)

Answer 1

You should use the Oracle Data Access Client library, and then the OracleConnection object instead.

http://www.oracle.com/technology/sample_code/tech/windows/odpnet/howto/connect/index.html

I know that Oracle is kind of picky with TNS names file. I usually count on the DBA's for this. SQL-Server is much easier to get going...