Question

以下查询生成我要删除的记录列表...

SELECT *
FROM `orderitems` as oi
LEFT JOIN `orders` as o
    ON (o.`orderid` = oi.`orderid`)
WHERE o.`date` = '2012-10-05'
  AND o.`status` = 'init';

不幸的是，这些表的设计没有id字段我查看了其他带连接的删除操作，但都使用了id个字段这不起作用：

DELETE
FROM `orderitems` as oi
LEFT JOIN `orders` as o
    ON (o.`orderid` = oi.`orderid`)
WHERE o.`date` = '2012-10-05'
  AND o.`status` = 'init';

如何使用单个MySQL查询设置上述DELETE？（没有PHP）

Answer 1

试试这个，

DELETE oi -- add the alias here
FROM `orderitems` as oi
LEFT JOIN `orders` as o
    ON (o.`orderid` = oi.`orderid`)
WHERE o.`date` = '2012-10-05'
  AND o.`status` = 'init';

或使用子查询

DELETE FROM `orderitems`
WHERE `orderid` IN
(
   SELECT o.`orderid`
   FROM `orders` as o
   WHERE o.`date` = '2012-10-05'  AND o.`status` = 'init'
)

你如何用JOIN和没有ID删除？

1 个答案: