筛选重复行，删除重复行 使用游标来实现。 delete from vitae a where (a.peopleId,a.seq) in (select peopleId,seq from vitae group by peopleId,seq having count(*) > 1) and rowid not in (select min(rowid) from vitae group by peopleId,seq having count(*)>1)
1.如果有ID字段，就是具有唯一性的字段 代码如下: delect table where id not in ( select max(id) from table group by col1,col2,col3… ) group by 子句后跟的字段就是你用来判断重复的条件，如只有col1，那么只要col1字段内容相同即表示记录相同。 2. 如果是判断所有字段也可以这样 代码如下: select * into #aa from table group by id1,id2,…. del
