Youbackedupthedatabaseat8a.m.todayusinganonlinebackup.Accountingmadealargechangetotheunderlyingdatabetween10a.m.andnoon.Whichofthefollowingactionswouldensurethatthechangescouldberecoveredusingthe8a.m.backup？（）A.Createamanualincrementalonlinedatabasebackup
题目
Youbackedupthedatabaseat8a.m.todayusinganonlinebackup.Accountingmadealargechangetotheunderlyingdatabetween10a.m.andnoon.Whichofthefollowingactionswouldensurethatthechangescouldberecoveredusingthe8a.m.backup？（）
A.Createamanualincrementalonlinedatabasebackup.
B.Backupallthearchivedredologsgeneratedsincethe8a.m.backup.
C.Createabrand-newbackupafterallthechangeshavebeenapplied.
D.Thereisnowaytomakethechangesrecoverablebasedonthe8a.m.backup.
E.Performanonlinebackupofthetablespace（s）thatcontainedchangeddata.