ORA-16194: Modifying DB_UNIQUE_NAME requires SID='*' qualifier

ORA-16194: Modifying DB_UNIQUE_NAME requires SID='*' qualifier


Cause:


The setting for the DB_UNIQUE_NAME parameter must be exactly the same on all RAC instances so the SID='*' qualifier is required.



Action:


Re-enter the command using the SID='*' qualifier.