Database Error Messages

Release
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  • 23ai
  • 21c
  • 19c
Updated
Jun 24, 2024

TNS-01101

Could not find listener name or service name string

Cause

The listener name or service name could not be resolved by name-lookup.


Action

Verify that the listener name or service name specified to LSNRCTL has the correct name and address defined in LISTENER.ORA or in TNSNAMES.ORA.