選擇從過濾器

Question

我有一個查詢問題的產品：

我有3個表： 產品（ID，姓名） 設置（ID，姓名） product_setting（產品，setting_id）

例如：我想只選擇您選擇過濾器的產品！

我這樣做：

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「設置」 ID = 1個或ID = 2 如何獲得只有那些那些「設置」這些產品（AND）所有產品？

謝謝!!

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

這似乎是過來殺掉，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