单选题
发布日期:2021-09-30
The backup would be retained on the media for 31 days.
The backup would be maintained in the recovery catalog for 31 days.
The backup metadata would be retained in the control file for 31 days.
The backup metadata would be maintained in the recovery catalog for 31 days.
Automatic backups of the control file will be retained in the flash recovery area for 31 days.
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