我有下表:
id club_id club_option_id created
---|-------|--------------|-------
1 | 1 | 2 | 2015-02-11 16:31:23
2 | 1 | 3 | 2015-02-11 16:31:23
3 | 2 | 2 | 2015-03-06 08:16:02
我想选择有两种选择(2和3)的俱乐部(club_id)
我没有通过以下查询获得任何结果:
SELECT club_id FROM
club_options_to_clubs
WHERE club_option_id = 2 AND club_option_id = 3
GROUP BY club_id
我如何才能获得club_id 1?
答案 0 :(得分:1)
您可以执行以下操作 -
select
t1.club_id from table_name t1
where t1.club_option_id = 2
and exits (
select 1 from table_name t2
where t1.club_id = t2.club_id
and t2.club_option_id = 3
)
另一种方式是
select club_id from table_name
where club_option_id in (2,3)
group by club_id
having count(*) = 2
使用上述方法,如果您需要检查多个club_option_id
在in
函数中传递它们,然后使用having count(*) = n
中的数字
这里n = in
函数中的项目数。