Youareupgradingthedatabaseserversthatareusedbyallofthecompanysapplications.Asthefirststepintheupgrade,youupgradethedevelopmentdatabaseservers.Youneedtoverifythattheupgradeofthedatabaseserversdidnotintroduceanyerrorsintothedatabases.Whatshouldyoudo?（）
A.Executeunittestscriptsforeachstoredprocedureineachdatabase.
B.ExecutethestoredproceduresintheSQLServerManagementStudiodebugger,andverifytheresults.
C.Setthedatabasecompatibilitylevelonthedatabaseserversto80.
D.Executetheapplicationuserinterfacetestscriptstoverifyproperoperation.
参考答案：A
