數據表中存在多條一模一樣的記錄，該怎樣刪除這些多余記錄，讓它只剩下一條。謝謝!!!
------解决方案--------------------
delete from 表 where id in
(
select id from 表 as T
where id > (select min(id) from 表 where 字段=T.字段)
)
字段：有重复记录的字段
------解决方案--------------------
select distinct * into 临时表 from 表1
delete from 表1 group by 所有字段 having count(*) > 1
insert into 表1 select * from 临时表
drop table 临海表