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Where does Oracle get Flashback data from?

April 26, 2017Data Flashback Oracle

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10 Posted

Where does Oracle get Flashback data from?

1 Answer

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10 Posted

Oracle9i saves the undo for the changed data in the undo tablespace. It is possible to specify a target retention period for the “undo” or “rollback” data in the undo tablespace in terms of wall clock time. Oracle9i then protects this data unless it runs out of space in the undo tablespace.