Question

我想对数据库表执行搜索查询。这是我的表格示例。

movies
--------------------------
ID (INT) | TITLE (VARCHAR)
--------------------------

actors
-------------------------
ID (INT) | NAME (VARCHAR)
-------------------------

directors
-------------------------
ID (INT) | NAME (VARCHAR)
-------------------------

ma
------------------------------------
ID (INT) | MOVIE (INT) | ACTOR (INT)
------------------------------------

md
---------------------------------------
ID (INT) | MOVIE (INT) | DIRECTOR (INT)
---------------------------------------

我想根据某些关键字搜索movies。title，actors。name，directors。name。 ma表的字段movie引用movie。id和字段actor，引用actor。id等等上。我想按movie显示结果组。id。问题是我无法根据表directors和actors根据表ma和md找出如何执行表格movies }。对不起语法，如果您认为这个问题值得，可以编辑它。

那么，任何想法？

Answer 1

这一个你得到了一切

SELECT m.title, a.name AS actor, d.name AS director 
FROM movies m
INNER JOIN ma ON (ma.movie_id = m.id)
INNER JOIN actors a ON (a.id = ma.actor_id)
INNER JOIN md ON (md.movie_id = m.id)
INNER JOIN directors d ON (d.id = md.director_id)
ORDER BY m.title

这是你按照电影分组的那个

SELECT m.title, GROUP_CONCAT(a.name) AS actorS, GROUP_CONCAT(d.name) AS directors
FROM movies m
INNER JOIN ma ON (ma.movie_id = m.id)
INNER JOIN actors a ON (a.id = ma.actor_id)
INNER JOIN md ON (md.movie_id = m.id)
INNER JOIN directors d ON (d.id = md.director_id)
GROUP BY m.id
ORDER BY m.title

[编辑]

为了善良＆＃39;清酒..只需添加WHERE

... 在哪里，像是＆＃39;关键词％＆＃39;或者a.name LIKE＆＃39; KEYWORD％＆＃39;或者d.name LIKE＆＃39; KEYWORD％＆＃39;

根据MySQL选择多个表

1 个答案: