leetcodeSQL:574. Elected

Ideas
use group order and limit Locate the most candidateid
Then find out the name

sql

# Write your MySQL query statement below
 
select name 
from
(   
    #  Find the most tickets candidateID
    select candidateId, count(candidateId) cnt
    from Vote
    group by candidateId
    order by cnt DESC
    limit 1
) t, Candidate c
where t.candidateId = c.id

summary ：
group limit