单选题Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA/x7f01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（）Aflash back the corrupted blocksBuse the DBMS_REPAIR packageCuse the RMAN TSPITR commandDuse the RMAN BLOCKRECOVER commandEuse the RESTORE DATABASE and RECOVER DATABASE commandsFinvestigate the time at which the corruption occurred and perform a pointintime recovery
单选题
Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA/x7f01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（）
A
flash back the corrupted blocks
B
use the DBMS_REPAIR package
C
use the RMAN TSPITR command
D
use the RMAN BLOCKRECOVER command
E
use the RESTORE DATABASE and RECOVER DATABASE commands
F
investigate the time at which the corruption occurred and perform a pointintime recovery
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