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Indentify two advantages of using recovery catalog instead of the control file of the database in 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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