单选题What will be the end result of this set of RMAN commands？（） shutdown abort startup mount restore datafile 4 until time ，，09/30/2008：15：00：00； recover datafile 4 until time ，，09/29/2008：15：00：00； alter database open resetlogs；A Datafile 4 will be recovered until 9/30/2008 at 15：00 and the database will open.B The restore command will fail.C The recover command will fail.D The alter database open resetlogs command will fail.E All these commands will fail because they must be in the confines of a run block.
单选题
What will be the end result of this set of RMAN commands？（） shutdown abort startup mount restore datafile 4 until time ，，09/30/2008：15：00：00； recover datafile 4 until time ，，09/29/2008：15：00：00； alter database open resetlogs；
A
Datafile 4 will be recovered until 9/30/2008 at 15：00 and the database will open.
B
The restore command will fail.
C
The recover command will fail.
D
The alter database open resetlogs command will fail.
E
All these commands will fail because they must be in the confines of a run block.
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