I have SSIS BIDS (SQL Server 2008) (32 bit), and am using Attunity connector to connect to an Oracle DB. A while back we had our systems upgraded to windows 7 64 bit.
I have installed Oracle 11g client on my machine, added TNS entries for the above Oracle server connection and also pointed this path (path for TNSNames.ORA) in the "PATH" environment variable as well as "TNS_ADMIN" (which I created) environment variable.
Even after doing all this, I get the following error when validating the Attunity Oracle source connector, the error is as follows:
"OCI Error Encouneterd. ORA-12154: TNS could not resolve the connect identifier specified, Test connection failed".
I also researched that this might be due to paranthesis in the path for devenv.exe (BIDS).... So I went through the following post, installed JUNCTION, and created a junction pointing to the actual directory for devenv.exe.
http://danieladeniji.wordpress.com/2011/08/03/microsoft-sql-server-integration-services-attunity-error-oci-error-encountered-ora-12154-tnscould-not-resolve-the-connect-identifier-specified/
This too has not resolved the problem....
Any help appreciated!!