Wednesday, July 6, 2011

failed: ORA-24327: need explicit attach before authenticating a user (DBD ERROR: OCISessionBegin) at

If you are using Oracle and your web perl application is getting the following error:

failed: ORA-24327: need explicit attach before authenticating a user (DBD ERROR: OCISessionBegin) at

the issue could be you have change the ORACLE_SID in listener.ora and tnsnames.ora

Please restart your listener to fix the issue.

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