Examine the description of the STUDENTS table:Which two aggregate functions are valid on the START_DATE column?()
A. SUM(start_date)
B. AVG(start_date)
C. COUNT(start_date)
D. AVG(start_date, end_date)
E. MIN(start_date)
F. MAXIMUM(start_date)
A. SUM(start_date)
B. AVG(start_date)
C. COUNT(start_date)
D. AVG(start_date, end_date)
E. MIN(start_date)
F. MAXIMUM(start_date)
第1题
A.instancehangs
B.instancegetsaborted
C.instancecontinuesrunning
D.instancegetsrestartedautomatically
第2题
A.table
B.transactionaltrigger
C.storedprocedure
D.FROMclausequery
第3题
A.FlashbackTable
B.FlashbackDatabase
C.FlashbackVersionQuery
D.TheRMANREPORTcommand
E.TheDBA_PENDING_TRANSACTIONSview
第4题
YouworkasadatabaseadministratorforCertkiller.com.Clientconnectionrequestsarefailingbecausethelistenerisnotresponding.Youwanttoforwardclientconnectrequeststoanotherlistenerifonelistenerisnotresponding.Howdoyouachievethis?()
A.Enableinstancefailover
B.Configuresharedserver
C.Enabledatabasefailover
D.Enableconnect-timefailover
E.EnableTransparentApplicationFailover(TAF)
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