UPDATE product, orderitem, order_ SET product.product_sale = product.product_sale + orderitem.orderitem_pro_num WHERE product.product_id = orderitem.product_id AND order_.order_status =- 1
想问一下你的两个order_id是怎么通过触发器连起来的呀,我一直出错
又是你 UPDATE product JOIN orderitem ON product.product_id = orderitem.product_id JOIN order_ ON orderitem.order_id = order_.order_id AND order_.order_status = -1 AND order_.order_id = 1 SET product.product_sale = product.product_sale + orderitem.orderitem_pro_num
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