单选题Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available.What would you do in this scenario？（）A recovery cannot be performed because a backup was not performed after the last incomplete recoveryB restore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on TuesdayC restore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on SundayD restore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday
单选题
Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available.What would you do in this scenario？（）
A
recovery cannot be performed because a backup was not performed after the last incomplete recovery
B
restore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on Tuesday
C
restore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on Sunday
D
restore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday
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单选题You database operates in ARCHIVELOG mode and user-managed consistent backups are performed every Sunday night. On Tuesday， at 9：00 a.m. the current log sequence number was 369. Also， on Tuesday you lost the data file belonging to the SYSTEM tablespace and an achivelog file （sequence number 356） that contained redo entries between 8：00 a.m. and 8.30 a.m. With reference to this scenario， what would you do to recover the database？（）A Restore all the data files from last Sunday’s backup， and then perform a time-based recovery.B Restore all the data files from last Sunday’s backup， and then perform a cancel-based recovery.C Restore all the data files from last Sunday’s backup， and then perform a change-based recovery.D Restore only data files that belong to the SYSTEM tablespace from last Sunday’s backup， and then perform a complete recovery.
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单选题Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available. What would you do in this scenario？（）Arecovery cannot be performed because a backup was not performed after the last incomplete recoveryBrestore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on ThursdayCrestore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on TuesdayDrestore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on Sunday