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
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