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In short: Not really. An RMAN backupset (e.g. BACKUP DATABASE) will backup up any blocks in your datafiles that have never been used. This is different from empty blocks. There's no way that I am aware of to differentiate between blocks which are currently empty and blocks which are unused. From: ...


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1: Incremental image copy update is only supported on disk 2: Updating the image copy is done using a differential backupset. So you need the diff before you can update the image copy. A good description of the process is in the Oracle docs For both answers, see the RMAN Backup and Recovery User's Guide: ...



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