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单项选择题Which of the following represents the correct way to perform an online recovery of datafile 4, which is assigned to a tablespace called USERS?()  

A、 shutdown restore datafile 4; recover datafile 4; alter database open;

B、 Sql alter database datafile 4 offline; restore datafile 4; recover datafile 4; alter database open;

C、 Sql alter database datafile 4 offline; restore datafile 4; Sql alter database datafile 4 online;

D、 Sql alter database datafile 4 offline; restore database datafile 4; recover database datafile 4;Sql alter database datafile 4 online;

E、 Sql alter database datafile 4 offline; restore datafile 4; recover datafile 4; Sql alter database datafile 4 online;

  • E
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