327.You have a database with the following tablespaces: SYSTEM, SYSAUX, UNDO, USERS, TEMP. You want to"roll back" the data in the USERS tablespace to the way it looked yesterday. Which tablespaces do you need to perform a point-in-time restore operation on in order to complete this task? (Choose all that apply.)
A.SYSTEM
B.SYSAUX
C.UNDO
D.USERS
E.TEMP
F.This restore is not possible.
正确答案是ABCDE