Animportanttablespaceofyourdatabaseisdroppedbymistake.YouusetheFlashbackDatabasefeaturetoretrievethetablespace.Youperformthefollowingstepstoretrievethetablespace:
1.YoulogontoEnterpriseManagerasSYSDBA.
2.Youselectthemaintenancescreen.
3.YouchoosePerformRecoveryoptiononthemaintenancescreen.
4.YouchooseWholeDatabaseintheObjectTypedrop-downlistPerformRecovery:Typescreen.5.YouchooseRecovertoCurrentTimefromtheOperationTypeonthePerformRecovery:Typescreen.
6.YouprovidetheHostCredentialsforadatabaseuser.onthePerformRecovery:Typescreen.
7.Youclickthecontinuebutton.
Aninformationscreenappearssayingthatthedatabaseisunavailable.Whatisthisinformationscreen?()