Youexecutedthefollowingqueryinyourdatabase:FROMV$FLASHBACK_DATABASE_LOGWhatwouldyoudeterminefromtheoutput?() A.thetimewhenthelastflashbackoperationinyourdatabasewasperformedB.thetimewhenthefirstflashbackoperationinyourdatabasewasperformedC.alistofflashbackoperationsperformedinyourdatabaseusingSCNandtimeD.theapproximatetimeandthelowestsystemchangenumber（SCN）towhichyoucanflashbackyourdatabase
Youexecutedthefollowingqueryinyourdatabase:FROMV$FLASHBACK_DATABASE_LOGWhatwouldyoudeterminefromtheoutput?()
A.thetimewhenthelastflashbackoperationinyourdatabasewasperformed
B.thetimewhenthefirstflashbackoperationinyourdatabasewasperformed
C.alistofflashbackoperationsperformedinyourdatabaseusingSCNandtime
D.theapproximatetimeandthelowestsystemchangenumber（SCN）towhichyoucanflashbackyourdatabase
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Youexecutedthefollowingqueryinyourdatabase:SELECToldest_flashback_scn,oldest_flashback_timeFROMV$FLASHBACK_DATABASE_LOG;Whatwouldyoudeterminefromthe output?() A.Thetimewhenthelastflashbackoperationinyourdatabasewasperformed.B.Thetimewhenthefirstflashbackoperationinyourdatabasewasperformed.C.AlistofflashbackoperationsperformedinyourdatabaseusingSCNandtime.D.Theapproximatetimeandthelowestsystemchangenumber（SCN）towhichyoucanflashbackyourdatabase.
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