How to fix the Oracle error RMAN-06738: database name “string” is not unique in the recovery catalog?

In this post, you’ll learn more about the Oracle ErrorRMAN-06738: database name “string” is not unique in the recovery catalog with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-06738: database name “string” is not unique in the recovery catalog

Reason for the Error RMAN-06738: database name “string” is not unique in the recovery catalog

The UNREGISTER DATABASE command was used with a database name that is ambiguous.

How to fix the Error RMAN-06738: database name “string” is not unique in the recovery catalog ?

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

Use the SET DBID command to specify the database id and resolve the ambiguity.