php - 按查询结果排序/Mysql 子查询

Question

您好（我是 PHP 新手），

我不太清楚我要创建的子查询的语法，这是查询：

SELECT * FROM show_episode, shows, show_episode_airdate, show_moyenne 
WHERE season = 1 AND episode = 1 
AND shows.imdb_id = show_episode.imdb_id_show 
AND show_episode_airdate.episode_id = show_episode.episode_id 
AND show_moyenne.show_id = shows.id 
AND show_episode_airdate.airdate < '2013-07-12' 
ORDER BY show_episode_airdate.airdate DESC LIMIT 10

完成此操作后，我想通过 show_moyenne.moyenne 对这 10 个选定的行进行排序，如下所示：

SELECT * (FROM show_episode, shows, show_episode_airdate, show_moyenne 
WHERE season = 1 AND episode = 1 
AND shows.imdb_id = show_episode.imdb_id_show 
AND show_episode_airdate.episode_id = show_episode.episode_id 
AND show_moyenne.show_id = shows.id 
AND show_episode_airdate.airdate < '2013-07-12' 
ORDER BY show_episode_airdate.airdate DESC LIMIT 10) 
* ORDER BY show_moyenne.moyenne DESC

哪个不正确，任何人都可以告诉我正确的方法吗？

谢谢，任何帮助表示赞赏！

Answer 1

Select * from 
(SELECT * FROM show_episode, shows, show_episode_airdate, show_moyenne 
WHERE season = 1 AND episode = 1 
AND shows.imdb_id = show_episode.imdb_id_show 
AND show_episode_airdate.episode_id = show_episode.episode_id 
AND show_moyenne.show_id = shows.id 
AND show_episode_airdate.airdate < '2013-07-12' 
ORDER BY show_episode_airdate.airdate DESC LIMIT 10) as j 
order by j.moyenne DESC

我希望这能有所帮助。

Answer 2

 SELECT x.* 
   FROM
      ( SELECT * 
          FROM show_episode e
          JOIN shows s
            ON s.imdb_id = e.imdb_id_show 
          JOIN show_episode_airdate a
            ON a.episode_id = e.episode_id 
          JOIN show_moyenne m
            ON m.show_id = s.id 
         WHERE season = 1 
           AND episode = 1 
           AND a.airdate < '2013-07-12' 
         ORDER 
            BY a.airdate DESC 
         LIMIT 10
      ) x
  ORDER 
     BY moyenne;