Oracle : Ошибка ORA-16621

16621, 0000, "database name for ADD DATABASE must be unique"
*Cause: 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.
*Action: 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.

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