题目内容
(请给出正确答案)
[单选题]
6个元素按3,2,1,4,5,6的顺序进栈(2次入栈间可能有零至多次出栈),下列哪个不是合法的出栈序列。
A.2,1,4,3,6,5
B.1,2,4,6,5,3
C.4,1,3,2,5,6
D.5,4,1,6,2,3
查看答案
如果结果不匹配,请 联系老师 获取答案
A.2,1,4,3,6,5
B.1,2,4,6,5,3
C.4,1,3,2,5,6
D.5,4,1,6,2,3
1)Shutdowntheinstance.
2)ChangethevalueoftheDB_RECOVERY_FILE_DESTinitializationparametertoanewvalue.
3)ExecutetheALTERDATABASEFLASHBACKOFFcommand.
4)Startuptheinstanceandmountthedatabase.
5)ExecutetheALTERDATABASEFLASHBACKONcommand.
6)Openthedatabase.
下面哪个顺序是正确的操作步骤?()
A.1,4,3,2,6,5
B.1,4,2,6,3,5
C.2,1,4,3,5,6
D.3,2,1,4,5,6
A.7/2
B.7/3
C.5/2
D.2