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單項(xiàng)選擇題

After running the CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS command, what has been accomplished?()

A.Retain the data file backup for 7 days.
B.Run the recover process every 7 days.
C.Destroy the physical backup files every 7 days.
D.Destroy the physical backup files older than 7 days.
E.Retain one backup of each data file for at least 7 days.
F.Keep the catalog information in the control file for 7 days.

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