单项选择题
A. when a tablespace is dropped and you have only RMAN-based backup of the database
B. when a table is dropped and stored in the Recycle Bin
C. when you are required to recover an existing table to its previous state
D. when a tablespace is dropped and you have only a user-managed full backup of the database
单项选择题 YouaremaintainingthePRODdatabaseforNetFxCorporation.Youhaveconfiguredcontrolfileautobackupinyourdatabase.At6：00P.M.onMonday，youissuethefollowingcommand：RMAN>BACKUPDATABASE；At8：00A.M.onTuesday，youareunabletostartthedatabasebecauseallthecontrolfilesaremissing.YoudecidetorestorethecontrolfilesfromthebackupbyusingtheRMAN>RESTORECONTROLFILEFROMAUTOBACKUP；command.WhichoperationshouldyouperformbeforeusingtheRMAN>RESTORECONTROLFILEFROMAUTOBACKUP；command？（）
单项选择题 In which scenario will you issue the following command？（） SQL> RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING BACKUP CONTROLFILE；
单项选择题 Inwhichscenariowillyouperformanincompleterecovery？（）