日期:2014-05-18  浏览次数:20431 次

怎样找出 姓名相同,会员编号不同的顾客?
姓名 name
会员编号 cli_no

------解决方案--------------------
SQL code

select *
from tb t
where exists (select 1 from tb where name = t.name and id <> t.id)
order by name

------解决方案--------------------
SQL code
select * from tb t where exists (select 1 from tb where name=t.name and cli_no<>t.cli_no)

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探讨

SQL code

select *
from tb t
where exists (select 1 from tb where name = t.name and id <> t.id)
order by name

------解决方案--------------------

 select * from tab1 a
where exists (select 1 from tab1 where name=a.name and cli_no<>a.cli_no)