SQL SERVERÖн»ºÍ²îµÄʵÏÖ

create table aaa
(
id int primary key ,
name varchar(30) not null
)
create table bbb
(
id int primary key ,
name varchar(30) not null
)
--½»
select * from aaa
where exists
(
select * from bbb where aaa.id=bbb.id and aaa.name = bbb.name
)
--²î
select *
from bbb
where not exists
(
select *
from aaa
where bbb.id=aaa.id and bbb.name=aaa.name
)