One of the essential things in the configuration of Oracle Data Guard and Oracle Data Guard Broker is where the file tnsnames.ora is placed, which by default, from some other early releases of 19c it has been defined at $ORACLE_HOME/network/admin. However, in one of the environments that I was providing some job as a consultant, I could see the following outputs from the Oracle Data Guard broker utility : Just a brief explanation on the output above to make it easier to understand from now on: Standby database has db_unique_name…