去掉重复记录select * from 时间:2013-12-28 03:47:39 【文件属性】: 文件名称:去掉重复记录select * from 文件大小:374B 文件格式:TXT 更新时间:2013-12-28 03:47:39 去掉重复记录 select * from company where comid in (select Max(comid) from company group by companyname)得到重复记录数 立即下载