What is the concept of flasback on in Snapshot standby  in 11gR2

Hi,
why use flashback "enable" Snapshot standby in 11gR2
Regards
Afzal

Hello
Snapshot standby allows the standby database to be opened in read-write mode. When switched back into standby mode, all changes made whilst in read-write mode are lost. This is achieved using flashback database, but the standby database does not need to have flashback database explicitly enabled to take advantage of this feature, thought it works just the same if it is.
So you can use Flashback or not it does not matter.
Best Regards
mseberg

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