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ViewtheExhibitandexaminetheparameters.UserAexecutesthefollowingcommandtoupdatetheTRANStable：SQL>UPDATEB.transSETtr_amt=tr_amt+500WHEREc_code=’C005’；BeforeuserAissuesaCOMMITorROLLBACKcommand，userBexecutesthefollowingcommandontheTRANStable：SQL>ALTERTABLEtransMODIFY（tr_typeVARCHAR2（3））；Whatwouldhappeninthisscenario（）
A.TheALTERTABLEcommandmodifiesthecolumnsuccessfully.
B.TheDDLoperationgetshigherpriorityandtransactionforuserAisrolledback.
C.TheALTERTABLEcommandwaitsindefinitelyuntiluserAendsthetransaction.
D.TheALTERTABLEcommandfailsafterwaitingfor60secondsduetotheresourcebeingbusy
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更多 “ ViewtheExhibitandexaminetheparameters.UserAexecutesthefollowingcommandtoupdatetheTRANStable：SQLUPDATEB.transSETtr_amt=tr_amt+500WHEREc_code=’C005’；BeforeuserAissuesaCOMMITorROLLBACKcommand，userBexecutesthefollowingcommandontheTRANStable：SQLALTERTABLEtransMODIFY（tr_typeVARCHAR2（3））；Whatwouldhappeninthisscenario（）A.TheALTERTABLEcommandmodifiesthecolumnsuccessfully.B.TheDDLoperationgetshigherpriorityandtransactionforuserAisrolledback.C.TheALTERTABLEcommandwaitsindefinitelyuntiluserAendsthetransaction.D.TheALTERTABLEcommandfailsafterwaitingfor60secondsduetotheresourcebeingbusy ” 相关考题
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