ocp 052考試詳解:1Z0-V8.02-第48題
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48. The job to gather optimizer statistics for objects runs as part of the automatic maintenance window in
your database instance. At a certain point of time, the maintenance window closes before the statistics are gathered for all objects.
Which statement is true in this scenario?
A.The statistics collection continues until all objects are processed.
B.The job is terminated and the statistics collected are restored to a time before the job started.
C.This produces an error and the statistics collected are locked until the next time that the maintenance window is opened.
D.The job is terminated and the statistics for the remaining objects are collected the next time that the maintenance window is opened.
Answer: D
答案解析:
題問:一個作業(yè)在你的數(shù)據(jù)庫實例的自動維護窗口中為一些對象正在搜集優(yōu)化統(tǒng)計信息,在一個特定的時間點,所有對象的統(tǒng)計信息還沒有搜集完,維護窗口就關(guān)閉了,此時:
這個作業(yè)被終止,剩下的統(tǒng)計信息的搜集將在下次維護窗口打開的時候繼續(xù)搜集。
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