SQL orderby select

Question

J'ai une requête SQL. Je voudrais commander par ceci par catégorie de parent. Mais je retourne seulement la catégorie par défaut. Je voudrais savoir si je peux

ORDER BY SELECT id_parent FROM cats WHERE id_category = id_default_category 

Voici ma requête:

SELECT cp.`id_product_attribute`, 
cp.`id_product`, cp.`quantity` AS cart_quantity, 
cp.id_shop, pl.`name`, 
p.`is_virtual`, 
pl.`description_short`, 
pl.`available_now`, 
pl.`available_later`, 
product_shop.`id_category_default`, 
p.`id_supplier`, 
p.`id_manufacturer`, 
product_shop.`on_sale`, 
product_shop.`ecotax`, 
product_shop.`additional_shipping_cost`, 
product_shop.`available_for_order`, 
product_shop.`price`, 
product_shop.`active`, 
product_shop.`unity`, 
product_shop.`unit_price_ratio`, 
stock.`quantity` AS quantity_available, 
p.`width`, 
p.`height`, 
p.`depth`, 
stock.`out_of_stock`, 
p.`weight`, 
p.`date_add`, 
p.`date_upd`, 
IFNULL(stock.quantity, 0) as quantity, 
pl.`link_rewrite`, 
cl.`link_rewrite` AS category, 
CONCAT(LPAD(cp.`id_product`, 10, 0), 
LPAD(IFNULL(cp.`id_product_attribute`, 0), 10, 0), 
IFNULL(cp.`id_address_delivery`, 0)) AS unique_id, 
cp.id_address_delivery, 
product_shop.advanced_stock_management, 
ps.product_supplier_reference supplier_reference 
FROM `ps_cart_product` cp 
LEFT JOIN `ps_product` `p` ON p.`id_product` = cp.`id_product` 
INNER JOIN `ps_product_shop` product_shop ON (product_shop.`id_shop` = cp.`id_shop` AND product_shop.`id_product` = p.`id_product`) 
LEFT JOIN `ps_product_lang` `pl` ON p.`id_product` = pl.`id_product` 
AND pl.`id_lang` = 1 AND pl.id_shop = cp.id_shop 
LEFT JOIN `ps_category_lang` `cl` ON product_shop.`id_category_default` = cl.`id_category` 
AND cl.`id_lang` = 1 AND cl.id_shop = cp.id_shop 
LEFT JOIN `ps_product_supplier` `ps` ON ps.`id_product` = cp.`id_product` AND ps.`id_product_attribute` = cp.`id_product_attribute` AND ps.`id_supplier` = p.`id_supplier` 
LEFT JOIN ps_sanishopstock_available stock 
ON (stock.id_product = cp.id_product AND stock.id_product_attribute = IFNULL(`cp`.id_product_attribute, 0) AND stock.id_shop = 1 AND  stock.id_shop_group = 0 ) 
WHERE cp.`id_cart` = 757 
ORDER BY product_shop.id_category_default ASC, cp.id_product, cp.date_add ASC; 

Il y a beaucoup de différentes table, je suis perdu!

Si quelqu'un a une idée. Merci beaucoup!

Answer 1

Oui. Mais comme toute sous-requête, vous avez besoin entre parenthèses:

ORDER BY (SELECT c.id_parent FROM cats c WHERE id_category = id_default_category) 

Je voudrais également qualifier les noms de colonnes dans le WHERE, mais je ne sais pas d'où ils viennent.