[求助]字符型列 起讫号 转换代码? Post By:2016/4/1 21:29:00 [只看该作者]
请教:下列代码中,因“学业考试报名号”列类型为 “字符”,不能统计,怎么办?
Dim b As New SQLGroupTableBuilder("起讫号明细表","学籍信息库") b.Groups.AddDef("班级") b.Totals.AddDef("学业考试报名号",AggregateEnum.Min,"起始号") b.Totals.AddDef("学业考试报名号",AggregateEnum.Max,"结束号") b.build()