A.Thelistenerisnotrunningattheserver.
B.TheTNS_ADMINenvironmentalvariableissettoawrongvalue.
C.Theorcl.oracle.comdatabaseserviceisnotregisteredwiththelistener.
D.TheDEFAULT_DOMAINparameterissettoawrongvalueintheSQLNET.ORAfile.
第1题
A.Thedatabasemustbeinread-writemode.
B.Thedatabasemusthavenoexternalfiles.
C.Thedatabasemustopeninread-onlymode.
D.Thedatabasemustbemountedbutnotopened.
第2题
UserAexecutesthefollowingcommandtodropalargetableinyourdatabase:SQL>DROPTABLEtrans;Whilethedroptableoperationisinprogress,userBexecutesthefollowingcommandonthesametable:SQL>DELETEFROMtransWHEREtr_type=’SL’;WhichstatementistrueregardingtheDELETEcommand()
A.Itfailswitha"ResourceBusy"error.
B.ItdeletestherowssuccessfullybecausethetableislockedinSHAREmode.
C.ItfailstodeletetherecordsbecausethetableislockedinEXCLUSIVEmode.
D.ItdeletestherowssuccessfullybecausethetableislockedinSHAREROWEXCLUSIVEmode.
第3题
A. WINDOW_PRIORITY
B. PRIORITY
C. PRIORITY_LEVEL
D. WINDOW_PRIORITY_LEVEL
E. OVERLAP_RULE
第4题
A.Anupdateinaleafrowtakesplace.
B.Theindexbecomesinvalidaftertheupdate.
C.Theleafblockcontainingtherowtobeupdatedismarkedasinvalid.
D.Arowintheleafblockoftheindexforthekeyvalueisdeletedandinserted.
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