Which two activities are NOT supported by the Data Recovery Advisor?（）
- A、Diagnose and repair a data file corruption offline.
- B、Diagnose and repair a data file corruption online.
- C、Diagnose and repair failures on a standby database.
- D、Recover from failures in the Real Application Cluster (RAC) environment.
正确答案:C,D
答案解析:有
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