使用倍數條件的Mysql查詢

Question

我必須獲得多個類別的產品（Prestashop數據庫）。

這是我的查詢：

SELECT COUNT(cp.`id_product`) AS total 
FROM `ps_product` p 
INNER JOIN ps_product_shop product_shop ON (product_shop.id_product = p.id_product 
AND product_shop.id_shop =1) 
LEFT JOIN `ps_category_product` cp ON p.`id_product` = cp.`id_product` 
WHERE cp.`id_category` =6 
AND cp.`id_category` =126 
AND product_shop.`visibility` 
IN (
"both", "catalog" 
) 
AND product_shop.`active` =1 

我要選擇內6類和內126類，但我的查詢返回0

產品可以有數倍的類別，所以我只想選擇如果產品在兩個類別內。

這是如何解決的，所以我得到了預期的結果？

Answer 1

SELECT COUNT(cp.id_product) AS total 
FROM ps_product p 
Left JOIN ps_product_shop product_shop ON (product_shop.id_product = p.id_product 
              AND product_shop.id_shop =1) 
LEFT JOIN ps_category_product cp ON p.id_product = cp.id_product 
WHERE cp.id_category in(6,126) 
    AND product_shop.visibility IN ('both', 'catalog') 
    AND product_shop.active =1 

朋友試試這個，

SELECT COUNT(cp.id_product) AS total 
FROM ps_product p 
Left JOIN ps_product_shop product_shop ON (product_shop.id_product = p.id_product 
              AND product_shop.id_shop =1) 
LEFT JOIN ps_category_product cp ON p.id_product = cp.id_product 
      and cp.id_category in(6) 
LEFT JOIN ps_category_product cp1 ON p.id_product = cp1.id_product 
      and cp1.id_category in(126) 
WHERE cp.id_category is not null 
    and cp1.id_category is not null 
    AND product_shop.visibility IN ('both', 'catalog') 
    AND product_shop.active =1 

Answer 2

使用

WHERE cp.`id_category` =6 
OR cp.`id_category` =126 

Answer 3

不要ü6和126之間是什麼意思？這是不可能的驗證對兩個6的一列和126如果是之間，然後使用，

SELECT COUNT(cp.`id_product`) AS total 
FROM `ps_product` p 
INNER JOIN ps_product_shop product_shop ON (product_shop.id_product = p.id_product 
AND product_shop.id_shop =1) 
LEFT JOIN `ps_category_product` cp ON p.`id_product` = cp.`id_product` 
WHERE cp.`id_category` between 6 and 126 
AND product_shop.`visibility` 
IN (
"both", "catalog" 
) 
AND product_shop.`active` =1 

Answer 4

WHERE (cp.`id_category` = 6 OR cp.`id_category` = 126) 
AND product_shop.`visibility` IN ("both", "catalog") 
AND product_shop.`active` = 1 

在兩種類別：

SELECT COUNT(cp.id_product) AS total 
FROM ps_product p 
Left JOIN ps_product_shop product_shop ON (product_shop.id_product = p.id_product 
              AND product_shop.id_shop = 1)  
WHERE product_shop.visibility IN ('both', 'catalog') 
    AND product_shop.active = 1 
    AND EXISTS(SELECT * FROM ps_category_product cp 
      WHERE p.id_product = cp.id_product AND cp.id_category = 6) 
    AND EXISTS(SELECT * FROM ps_category_product cp 
      WHERE p.id_product = cp.id_product AND cp.id_category = 12)