选择从过滤器

Question

我有一个查询问题的产品：

我有3个表： 产品（ID，姓名） 设置（ID，姓名） product_setting（产品，setting_id）

例如：我想只选择您选择过滤器的产品！

我这样做：

SELECT p. *, s.id as setting 
FROM Products p 
INNER JOIN product_setting p2 ON (p.id = p2.product_id) 
INNER JOIN settings s ON (s.id = p2.setting_id) 
WHERE s.id IN (1,2) 

但我得到的是有“设置” ID = 1个或ID = 2 如何获得只有那些那些“设置”这些产品（AND）所有产品？

谢谢!!

Answer 1

SELECT p.*, s.id as setting 
FROM Products p 
INNER JOIN product_setting p2 ON (p.id = p2.product_id) 
INNER JOIN settings s ON (s.id = p2.setting_id) 
WHERE s.id IN (1,2) 
GROUP BY p.id 
HAVING COUNT(*)=2; // size of IN() 

Answer 2

这似乎是过来杀掉，但...

SELECT p. *, s.id as setting 
FROM Products p 
INNER JOIN product_setting p2 ON (p.id = p2.product_id) 
INNER JOIN settings s ON (s.id = p2.setting_id) 
INNER JOIN settings s2 ON (s.id = p2.setting_id) 
WHERE 
    s.id = 1 
    AND s2.id = 2