2009年11月3日
SQL 删除重复数据
摘要： delete from dbo.CompanyInfo where CompanyName in (select CompanyName from CompanyInfo group by CompanyName having count(CompanyName) > 1) and CompanyID not in (select min(CompanyID) from CompanyInf... 阅读全文
posted @ 2009-11-03 14:52 清凉的风/2.0 阅读(139) 评论(0) 推荐(0) 编辑