YouaremaintainingyourdatabaseinOracle10g.YouareperformingthebackupbyusingtheBACKUPASBACKUPSETcommandattheRMANprompt.WhichfilecannotbebackedupbyusingtheBACKUPASBACKUPSETcommand?() A.DatafilesB.CurrentcontrolfileC.Serverparameterfile（spfile）D.Passwordfile
YouaremaintainingyourdatabaseinOracle10g.YouareperformingthebackupbyusingtheBACKUPASBACKUPSETcommandattheRMANprompt.WhichfilecannotbebackedupbyusingtheBACKUPASBACKUPSETcommand?()
A.Datafiles
B.Currentcontrolfile
C.Serverparameterfile（spfile）
D.Passwordfile