单选题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？（）Arecover using Oracle Flashback Database technologyBrestore the data files from backup and perform a complete recoveryCrestore only the corrupted data file and perform tablespace recoveryDrestore the data files from backup and perform cancel-based recoveryErestore the entire database from the most recent backup and start the instance and open the database
单选题
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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