39 - 电影评分（高频 SQL 50 题基础版)

39 - 电影评分

(select
    u.name as results
from
    MovieRating m left join Users u on m.user_id=u.user_id 
GROUP BY
    m.user_id
order by 
    count(*) desc,u.name asc limit 1)
union all
(select
    m1.title as results
from
    MovieRating m left join Movies m1  on m.movie_id=m1.movie_id    
where
    month(m.created_at)=2
group by
    m.movie_id
order by 
    avg(m.rating) desc,m1.title asc
limit 1);