摘要： insert into StudentTable(ClassID,StudentName,StudentSex,StudentAge,StudentState,StudentRemark) values(@ClassID,@StudentName,@StudentSex,@StudentAge,@StudentState,@StudentRemark) set @Errer+=@@ERROR declare @Existsrepeat int select @Existsrepeat=COUNT(a.StudentName) from (select classID,S... 阅读全文