The( )scheme in a database system is re

考试题库2022-08-02  97

问题 The(  )scheme in a database system is responsible for the detection of failures and  for the restoration of the database to a state that existed before the occurrence of the failure.A.queryB.testC.checkD.recovery

选项 A.query
B.test
C.check
D.recovery

答案 D

解析 数据库中的恢复机制负责检测故障,并将数据库恢复到故障发生前的状态。
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