问题:
A . It can never be used for a restore/recover operation.
B . Oracle will remove the backup set pieces from the flash recovery area.
C . The backup has been used at least once to restore and recover the database.
D . The backup is no longer valid because of a resetlogs operation.
E . The physical backup set pieces are missing from the media.
● 参考解析
本题暂无解析
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