Brief Overview of Flashback Technology
The term flashback was first introduced with Oracle 9i in the form of the new technology known as flashback query. When enabled, flashback query provided a new alternative to correcting user errors, recovering lost or corrupted data, or even performing historical analysis without all the hassle of point-in-time recovery.
The new flashback technology was a wonderful addition to Oracle 9i, but it still had several dependencies and limitations. First, flashback forced you to use Automatic Undo Management (AUM) and to set the UNDO_RETENTION parameter. Second, you needed to make sure your flashback users had the proper privileges on the DBMS_FLASHBACK package. After these prerequisite steps were completed, users ...
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