显示最高票数

Question

我想显示总统，副总统和秘书的最高票数，但这个查询最小的票数也会显示，我该怎么办？

select c.picturename, c.candidate_id, v.position, count(v.candidate_id) as count 
from votes as v 
left outer join candidates as c on c.candidate_id = v.candidate_id 
group by v.candidate_id 
order by count;

Answer 1

select  *
from    (
        select  position
        ,       candidate_id
        ,       count(*)
        from    votes
        where   position = 'president'
        group by
                position
        ,       candidate_id
        order by
                count(*) desc
        limit   1
        )
union all
select  *
from    (
        select  position
        ,       candidate_id
        ,       count(*)
        from    votes
        where   position = 'vice president'
        group by
                position
        ,       candidate_id
        order by
                count(*) desc
        limit   1
        )
union all
select  *
from    (
        select  position
        ,       candidate_id
        ,       count(*)
        from    votes
        where   position = 'secretary'
        group by
                position
        ,       candidate_id
        order by
                count(*) desc
        limit   1
        )