mysql - 您如何使用 JOIN 而没有 ID 进行删除？

Question

以下查询产生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。
我查看了其他带有连接的删除，但都使用id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DELETE使用单个 MySQL 查询进行上述设置？（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';

或通过使用子查询

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