OLEDB provider issue

Hi all,
I'm setting up linked server from sql server to oracle. I installed Oracle client 10.2.0.1 on the server, configured ODBC to the Oracle database using OraOLEDB.Oracle provider. Created linked server on sql server, but getting the below error:
SELECT * FROM
testlink..user.table
OLE DB provider "ORAOLEDB.ORACLE" for linked server "TestLink" returned message "ORA-12154: TNS:could not resolve the connect identifier specified".
Msg 7303, Level 16, State 1, Line 2
Cannot initialize the data source object of OLE DB provider "ORAOLEDB.ORACLE" for linked server "TestLink".
tnsping to the oracle database works from the server and the ODBC connection testlink to the oracle database is successful. I tried checking Allow inprocess in the provider option by right clicking linked server properties on the management studio also.. Nothing seemed to work..
Please help.. thanks

Hi,
TNS_ADMIN used in command prompt is somehow ignored (added comment afterwards: mapped drive used in TNS_ADMIN may not be accessable, use UNC path in TNS_ADMIN instead).
Create TNSNAMES entry through Oracle Net Configuration Assistant.
Test Connection on Linked server must work before any SELECT can work.
To use insert from linked server data change provider options:
Allow inprocess = checked
Restart SQL server windows service and try again.
Best regards,
Alex
Edited by: user4580124 on Dec 15, 2010 1:40 PM
Edited by: user4580124 on Nov 15, 2011 2:56 AM

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