MySQL DELETE 和多对多关系

Question

鉴于这些架构

订单（订单号，已创建，状态） 产品(product_id,product_name) orders_products(order_number,product_id,quantity)

如果我想删除超过 N 天的订单，我还必须删除 orders_products 表中与这些订单相关的记录。

如何在单个查询中执行此操作，而不必检索每个 order_number，将它们存储在业务逻辑中，最后运行其他查询来清理映射表？

我没有FK

Answer 1

这似乎有效：

DELETE orders_products, orders 
FROM orders_products 
INNER JOIN orders 
ON orders_products.order_number = orders.order_number 
WHERE orders.created  < NOW() - INTERVAL 30 DAY