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ORA-03114: Not Connected to Oracle tips

Oracle Tips by Burleson Consulting

The "ORA-03114: Not Connected to Oracle" error is commonly found when there is a problem with the network connectivity.  The docs note:

ORA-03114 not connected to ORACLE

Cause: A call to Oracle was attempted when no connection was established. Usually this happens because a user-written program has not logged on. It may also happen if communication trouble causes a disconnection.

Action: Try again. If the message recurs and the program is user written, check the program.

Common causes for the ORA-03114 error include:

  • Webserver or listener process is not running
  • Missing entry to the tnsnames.ora
  • Network issues
  • Problems with connection pooling (shared servers, MTS)

Also, see my notes on troubleshooting network errors in Oracle.

 
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