2008年3月28日
过滤重复记录
摘要： 表lin(a, b, c) select *, px = identity(int, 1, 1) into #tbfrom lingo select * from #tb as t1where not exists( select 1 from #tb as t2 where t1.a = t2.... 阅读全文
posted @ 2008-03-28 10:48 BigRain 阅读(268) 评论(0) 推荐(0) 编辑