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INSERT [成绩1] ([学号],[课程],[分数],[姓名])
select '20055036','VB程序设计',88,'小龚'
union all
select '20055037','数学',78,'龚艺'
if exists (select * from sysobjects where id = OBJECT_ID('[成绩1]') and OBJECTPROPERTY(id, 'IsUserTable') = 1)