删除行选择

Question

我有这个SQL语句MSQL是选择我想要的东西（我要寻找并试图删除旧数据）：

SELECT * 
FROM `reviews` as r 
JOIN items as i 
ON i.item_id = r.item_id 
JOIN master_cat as c 
ON i.cat_id = c.cat_id 
WHERE category is null 

现在，我需要一种只从名为reviews的表中删除这些行的方法。我会如何去做这件事？

Answer 1

的DELETE说法是，

DELETE r 
FROM reviews r 
     INNER JOIN items i ON i.item_id = r.item_id 
     INNER JOIN master_cat c ON i.cat_id = c.cat_id 
WHERE category is null