How to fix the Oracle error RMAN-20243: database db_unique_name is not known to the recovery catalog?

In this post, you’ll learn more about the Oracle ErrorRMAN-20243: database db_unique_name is not known to the recovery catalog with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-20243: database db_unique_name is not known to the recovery catalog

Reason for the Error RMAN-20243: database db_unique_name is not known to the recovery catalog

the user specified DB_UNIQUE_NAME not known to the recovery catalog.

How to fix the Error RMAN-20243: database db_unique_name is not known to the recovery catalog ?

You can fix this error in Oracle by following the below steps

change the database DB_UNIQUE_NAME to a known database value. To display list of known db_unique_names execute LIST DB_UNIQUE_NAME OF DATABASE