mysql - 如何在mysql中使用LEFT JOIN

Question

我的代码出现错误，希望能提供一些帮助。这只是我尝试学习的第一天，所以请尽可能简单，谢谢

#1064 - You have an error in your SQL syntax; check the manual that 
corresponds to your MariaDB server version for the right syntax to use 
near 'FROM specials LEFT JOIN products_description LEFT JOIN products 
WHERE special' at line 2

SELECT specials.specials_id, specials.products_id,specials_new_products_price, products.products_image,  products.products_price,products.products_image, products.products_quantity,products.products_model,products_description.products_name,products_description.products_description,
FROM specials 
LEFT JOIN  products_description
LEFT JOIN  products
WHERE specials.products_id = products.products_id AND specials.products_id = products_description.products_id AND products.products_quantity>0

Answer 1

检查这个语法

SELECT column_name(s)
FROM table1
LEFT JOIN table2
ON table1.column_name=table2.column_name;

例子

SELECT specials.specials_id, specials.products_id,specials_new_products_price, products.products_image,  products.products_price,products.products_image, products.products_quantity,products.products_model,products_description.products_name,products_description.products_description
FROM specials 
LEFT JOIN  products on specials.products_id = products.products_id
LEFT JOIN  products_description on specials.products_id = products_description.products_id
WHERE products.products_quantity>0

希望这能行得通