How to fix the Oracle error ORA-16621: database name for ADD DATABASE must be unique?

In this post, you’ll learn more about the Oracle ErrorORA-16621: database name for ADD DATABASE must be unique with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16621: database name for ADD DATABASE must be unique

Reason for the Error ORA-16621: database name for ADD DATABASE must be unique

An attempt was made to add a database to the broker configuration that already included a database with the specified name. The database names must be unique.

How to fix the Error ORA-16621: database name for ADD DATABASE must be unique ?

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

Verify that a unique name is specified for the new database to be added. Also, the database name must match the DB_UNIQUE_NAME initialization parameter of the database.