单项选择题
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 cancelbased recovery
E.restore the entire database from the most recent backup and start the instance and open the database
单项选择题 WhichstatementistrueaboutthelossofsystemcriticaldatafilesinARCHIVELOGmode?()
多项选择题 Inyourdatabase,theLogWriter(LGWR)processisunabletowritetoamemberofacurrentredologgroupduetoread/writefailure.Whichtwoeffectswouldyouseeinyourdatabase?()
多项选择题 Your database is configured in NOARCHIVELOG mode. All the control files have been lost due to a hard disk failure but the data files are not lost. You have the closed whole database backup available to you. Which two statements are true in this scenario?()