MySql的选择书籍

我有3个表， 1）图书MySql的选择书籍

+----+--------------+------+ 
| id | name   | code | 
+----+--------------+------+ 
|20 | Lucian house | 2214 + 
|21 | Lucian mom | 2214 | 
|22 | GoT   | 2214 | 
+----+--------------+------+

2）producs_authors

+----+---------+-----------+ 
| id | book_id | author_id | 
+----+---------+-----------+ 
|1 | 20  | 5  | 
|2 | 21  | 5  | 
|3 | 22  | 7  | 
+----+---------+-----------+

3）作者

+----+--------------+ 
| id | name   | 
+----+--------------+ 
| 5 | Marta  | 
+----+--------------+ 
| 7 | Lucian  | 
+----+--------------+

而且我想要选择所有包含卢西恩名字的书籍，以及作为作者“卢西恩”的所有书籍，我该怎么做？我需要使用子查询吗？到现在为止我有这个（我用Yii框架），这是标准的外观：

SELECT * 
FROM books t 
LEFT JOIN products_authors a ON a.id_book = t.id 
LEFT JOIN authors b ON b.id = a.author_id 
WHERE t.name LIKE %Lucian% 
OR b.name LIKE %Lucian%

来源

2017-09-14 oxido

有哪些你到目前为止尝试过？ – Jens

我总是建议添加您试图执行的查询（： – RudiDudi

听起来像一个学校作业。 – sagi

试试这个 -

SELECT b.id, b.name, a.name 
FROM books b 
INNER JOIN products_authors pa ON pa.book_id = b.id 
INNER JOIN authors a ON a.id = pa.author_id 
WHERE b.name LIKE %Lucian% 
OR a.name LIKE %Lucian%

来源

2017-09-14 13:52:19

请尽量将MySQL查询

select id,name from books where name like 'Lucian%' || id IN (select pa.book_id from producs_authors as pa,authors as a where pa.author_id=a.id && a.name= 'Lucian')

来源

2017-09-14 14:18:42

MySql的选择书籍

回答

相关问题