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【单选题】

LOG file must be used in the recovery of database. To re-execute the transaction that has been committed before failure time, which command should be used on the LOG records ?

A.
Undo
B.
Redo
C.
COMMIT
D.
ROLLBACK
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参考答案:
参考解析:
.
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举一反三

【单选题】PVC板式家具使用()手绘表现技法。

A.
高光技法
B.
平涂技法
C.
淡彩技法
D.
综合技法