试题与答案

设有关系模式:教师表(教师号,教师名,所在系,工资),现需建立一个统计每个系全体教师

题型:单项选择题

题目:

设有关系模式:教师表(教师号,教师名,所在系,工资),现需建立一个统计每个系全体教师工资总额的视图,正确的语句是()。

A.CREATEVIEWSalaryView(系名,工资总额)ASSELECT所在系,COUNT(工资)FROM教师表GROUPBY所在系

B.CREATEVIEWSalaryView(系名,工资总额)ASSELECT所在系,SUM(工资)FROM教师表GR()uPBY所在系

C.CREATEVIEWSalaryViewAsSELECT所在系,COUNT(工资)FROM教师表GROUPBY所在系

D.CREATEVIEWSalaryViewASSELECT所在系,SUM(工资)FROM教师表GROUPBY所在系

答案:

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