问答题

Whichtwostatementsaretrueaboutrecordgroups?（）

A.Theyarestoredinthedatabase.
B.TheyarestoredinlocalFormsmemory.
C.Thetypeisspecifiedexplicitlyatdesigntime.
D.Thetypeisimpliedbywhenandhowitiscreated.

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TheEMPtableexistsinyourschema.Youwanttoexecutethefollowingquery：SELECTename，salFROMempASOFTIMESTAMP（SYSTIMESTAMP-INTERVAL’6’MINUTE）WHEREename=’ALLEN’；Whataretheminimumrequirementsforthestatementtoexecutesuccessfully？（）
A.ARCHIVELOGmodemustbeenabled
B.RowMovementmustbeenabledforthetable
C.FLASHBACKmustbesettoONforthedatabase
D.TheUNDO_MANAGEMENTparametermustbesettoAUTO
E.TheUNDO_RETENTIONparametermustbesetappropriately

A.Youwanttoexecutethefollowingquery：SELECTename，salFROMempASOFTIMESTAMP（SYSTIMESTAMP-INTERVAL’6’MINUTE）WHEREename=’ALLEN’；Whataretheminimumrequirementsforthestatementtoexecutesuccessfully？（）
A.ARCHIVELOGmodemustbeenabled
B.RowMovementmustbeenabledforthetable
C.FLASHBACKmustbesettoONforthedatabase
D.TheUNDO_MANAGEMENTparametermustbesettoAUTO
E.TheUNDO_RETENTIONparametermustbesetappropriately

问答题

WhichtwoPL／SQL8featuresaresupportedinOracleForms?（）

A.methods
B.objecttables
C.objectcolumns
D.collectiontypes
E.objectasstoredprocedureparameters