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单项选择题 Your database is in NOARCHIVELOG mode and a logswitch happens every 20 minutes. On Thursday morning，media failure resulted in corruption of a data file belonging to the TOOLS tablespace. Backups are taken on every Sunday. What would you do in this situation？（）: A、recover using Oracle Flashback Database technology; B、restore the data files from backup and perform a complete recovery; C、restore only the corrupted data file and perform tablespace recovery; D、restore the data files from backup and perform cancel-based recovery; E、restore the entire database from the most recent backup and start the instance and open the database

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