试题详情
- 多项选择题You are working on a test database where instance recovery takes a considerable amount of time.How can reduce the recovery time？（）
A、By multiplexing the control files
B、By multiplexing the redo log files
C、By decreasing the size of redo log files
D、By configuring mean time to recover （MTTR） to a lower value
E、By setting the UNDO_RETENTION parameter to a higher value
- C,D
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