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Use the FLASHBACK DATABASE command to rewind the database to a target time, SCN, log sequence number, or restore point.
This command undoes changes made by Oracle Database to the data files that exist when you run the command. Flashback can fix logical failures, but not physical failures. As a result, you cannot use the command to recover from disk failures or the accidental deletion of data files.
FLASHBACK DATABASE is usually much faster than a RESTORE operation followed by point-in-time recovery because no data files are restored. The time needed to perform FLASHBACK DATABASE depends on the number of changes made to the database since the desired flashback time. On the other hand, the time needed to do a traditional point-in-time recovery from restored backups depends on the size of the database.
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