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YouareresponsibleformanagingthedatabaseschemaforanorderentryapplicationinaSQLServer2005database.Afteradesignreview,amemberofthedevelopmentstaffasksyoutoaddanewcolumnnamedCommissionRatetotheProducttable.Becausetheactualcommissionratesforallproductsarenotknownatthistime,eachproducthasadefaultcommissionrateof12percent.Theratecanbemodifiedasnecessary.Youaddthenewcolumn.Youneedtoconfigurethetabletoassignthedefaultvalueasefficientlyaspossible.Whatshouldyoudo?()
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更多 “ YouareresponsibleformanagingthedatabaseschemaforanorderentryapplicationinaSQLServer2005database.Afteradesignreview,amemberofthedevelopmentstaffasksyoutoaddanewcolumnnamedCommissionRatetotheProducttable.Becausetheactualcommissionratesforallproductsarenotknownatthistime,eachproducthasadefaultcommissionrateof12percent.Theratecanbemodifiedasnecessary.Youaddthenewcolumn.Youneedtoconfigurethetabletoassignthedefaultvalueasefficientlyaspossible.Whatshouldyoudo?() ” 相关考题
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classWrench{publicstaticvoidmain(String[]args){Wrenchw=newWrench();Wrenchw2=newWrench();w2=go(w,w2);System.out.print(w2==w);}staticWrenchgo(Wrenchwr1,Wrenchwr2){Wrenchwr3=wr1;wr1=wr2;wr2=wr3;returnwr3;}}结果是什么?()A.trueB.falseC.编译失败D.输出不可预期
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产出剖面测井的主要作用是()。
A、确定油水、油气、气水界面的原始位置,监测器在生产过程中的变化B、检测分层产量,研究产层特性C、为油井找卡水提供依据,提高油井产量D、评价完井效果,提高采收率
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