How to fix the Oracle error ORA-13521: Unregister operation on local Database id (string) not allowed?

In this post, you’ll learn more about the Oracle ErrorORA-13521: Unregister operation on local Database id (string) not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13521: Unregister operation on local Database id (string) not allowed

Reason for the Error ORA-13521: Unregister operation on local Database id (string) not allowed

The operation failed because the local database ID cannot be unregistered from the Workload Repository.

How to fix the Error ORA-13521: Unregister operation on local Database id (string) not allowed ?

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

check the database id and retry the operation.