ORA-12154 error on server 2008

Question

I'm moving a VB.NET 2010 app from a 32bit 2003 server to a 64bit 2008 server that connects to an Oracle 11g database, and am getting the following error message when executing it.

DefaultSource   Error   2
ERROR [08004] [Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
ERROR [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed

Here's some things I've done.

• Added the TNS_ADMIN environment variable to the server.
• Had server management install the 64bit "Oracle driver Oracle in OraClient11g_home1". They also uninstalled the 32bit "Microsoft ODBC for Oracle" driver.
• Verified I can connect to the server using SQLPlus
• Updated my connection string as I use to use the 32bit "Microsoft ODBC for Oracle"
• Added the database to the ODBC System DNS, and verified the connection worked.

Here's my connection string from my config file under the node.

<add name="SCHEMA_NAME" 
 connectionString="Driver={Oracle in OraClient11g_home1};Dbq=DATABASE_NAME;uid=USER;pwd=PASSWORD;"/>

Any suggestions to what I can try, or what needs to be changed to get this working on the new server?

Answer 1

I fixed the problem by changing the way I connect to oracle. I'm using the Oracle.DataAccess reference, removing the driver reference in the connection string, and rebuilding the connection using OracleConnection and oracleCommand.