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If you get this error:
ORA-12535: TNS:operation timed out
Driver's SQLSetConnectAttr failed
Then go to c:\oracle\ora92\network\admin and edit the sqlnet.ora file. Make sure the fully qualified domain name is correct.
This helped me on Oracle Version 9i
ORA-12535: TNS:operation timed out
Last Updated: 6/30/10If you get this error:
ORA-12535: TNS:operation timed out
Driver's SQLSetConnectAttr failed
Then go to c:\oracle\ora92\network\admin and edit the sqlnet.ora file. Make sure the fully qualified domain name is correct.
This helped me on Oracle Version 9i
Keywords: ORA-12535: TNS:operation timed out