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Identity two advantages of using a recovery catalog in-load of the control File of the target database Recovery Manager （RMAN）.（）
A: You can use RMAN stored scripts.
B: Recovery is faster if data is stored in catalog in addition to the control file.
C: You can store backup Information of all registered databases in one place.
D: Database backups are automatically deleted when they are older than the specified time period.

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出自：Oracle认证

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