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Oracle认证考试

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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.
正确答案:E
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