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單項(xiàng)選擇題

You are maintaining the SALES database for an organization. You have enabled the Flashback Database feature and want to estimate the flashback space required for future operations.  Which view would you query to estimate the flashback space required?()

A. V$DATABASE
B. V$FLASHBACK_DATABASE_STAT
C. V$FLASHBACK_DATABASE_LOG
D. V$RECOVERY_FILE_DEST

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