按总行数排序

Question

这是我的情景，
mysql数据库上的“movies”表，

director_id     movie
-----------     ------
1                movie1
1                movie2
1                movie3
3                movie4
3                movie5
2                movie6
2                movie7
2                movie8
2                movie9

我怎么能按照他们所拥有的电影数量来降序导演呢？

喜欢这个

2 - ＆gt; 4部电影

1 - ＆gt; 3部电影

3 - ＆gt; 2 mvoies

Answer 1

SELECT director_id, COUNT(*) as TotalMovies FROM movies
  GROUP BY director_id
  ORDER BY COUNT(*) DESC

Answer 2

根据每个Director的记录计数创建一个计算列，并对其进行排序。

即     SELECT Directors，count（DISTINCT director）FROM movies GROUP BY director;