Database Error Messages

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

NNL-00024

warning: no preferred name servers in SQLNET.ORA

Cause

The control program was unable to find any preferred name servers in SQLNET.ORA, and will therefore not connect to a default server.


Action

Make sure that the SQLNET.ORA file contains a valid names.preferred_servers entry.