Any conflicts will result in an RMAN error. Using a datafile copy on disk is much faster than restoring a datafile. Hence, you may wish to use an appropriate copy of a datafile in the recovery or auxiliary set, instead of restoring and recovering a datafile. If neither a new name nor clone name is set for a datafile in an auxiliary set tablespace, Recovery Manager can use the converted filename specified in the clone database control file to perform the restore and recovery. Recovery Manager checks for conflicts between datafile names at the clone and target databases.
Any conflicts result in error.
If neither a new name nor clone name is set for a datafile in a recovery set tablespace, or the file at the clone name is unusable, Recovery Manager uses the original location of the datafile. All Rights Reserved.