The following is the ORA-19612 error message, you can learn the cause and solution of the Oracle database error.
ORA-19612 datafile string not restored due to string
Cause: The indicated file could not be restored, because all of its data blocks were not found in the backup piece.
Solution: The restore conversation remains active, and the current piece must be reprocessed. If the failure cannot be resolved by reprocessing the current piece, then the restore conversation must be cancelled.
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