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In the parameter file of your production database， the CONTROL_FILE_RECORD_KEEP_TIME parameter is set to 31. What would be the impact of this setting on the backup that is being performed by using Recovery Manager （RMAN）？（）
A: The backup would be retained on the media for 31 days.
B: The backup would be maintained in the recovery catalog for 31 days.
C: The backup metadata would be retained in the control file for 31 days.
D: The backup metadata would be maintained in the recovery catalog for 31 days.
E: Automatic backups of the control file will be retained in the flash recovery area for 31 days.

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出自：Oracle认证

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