RMAN-06758: DB_UNIQUE_NAME is not unique in the recovery catalog

RMAN-06758: DB_UNIQUE_NAME is not unique in the recovery catalog

Cause: RMAN could not identify which SPFILE to restore for this target database, because the recovery catalog contained two or more different instances of this database, each with different DB_UNIQUE_NAME values.

Action: Use the FOR DB_UNIQUE_NAME option to specify the name of the instance whose parameter file you want to restore.

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