sqlserver2005查看重复并剔除

delete from web_site where title  in (select  title  from web_site  group  by  title  having  count(title) > 1) and [id] not in (select min([id]) from  web_site  group by title  having count(title )>1) 

?删除表中多余的重复记录，重复记录是根据单个字段（title）来判断，只留有id最小的记录