摘要: 1、查询重复记录 select * from st_rnfl_r t where (select count(*) from st_rnfl_r s where s.ymdhm = t.ymdhm)>1 阅读全文
posted @ 2010-11-09 09:22 yangan-wu2008 阅读(238) 评论(0) 推荐(0) 编辑