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ocp-245

时间:2015-10-09 09:21:31      阅读:328      评论:0      收藏:0      [点我收藏+]

QUESTION NO: 245
In what view are you likely to see the following output?

SID SERIAL# EVENT SECONDS_IN_WAIT


121 269 RMAN backup & recovery I/O 2
129 415 SQL*Net message from client 63
130 270 SQL*Net message from client 8
A. VSESSIONEVENTB.VSESSION
C. VWAITSD.VWAITSTAT
E. VSYSSTATAnswer:BThisoutputwouldbefromtheVSESSION view. It contains the current wait event for each session as
well as how long the wait has been occurring.


下面的输出中, 你可能看到什么样的视图?

Answer: B

这个输出会来自于会话视图,它包含当前每个会话的等待事
件以及该等待已经发生多长时间。


ocp-245

原文:http://blog.csdn.net/xuejiayue1105/article/details/48994949

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