update orders_father set ostatus=5,ofintimesys=now() where oid =
(select oid from
(SELECT oid FROM orders_father where TIMESTAMPDIFF(HOUR,odlvtime,now())>parameter and ostatus=4)
as tempTable)
;

这是代码1。

    update orders_father set ostatus=5,ofintimesys=now() where oid =any
(select oid from
(SELECT oid FROM orders_father where TIMESTAMPDIFF(HOUR,odlvtime,now())>parameter and ostatus=4)
as tempTable)
;

这是代码2，在oid=后面增加了any

我的疑问是，为何代码1会出现Error Code: 1242. Subquery returns more than 1 row
这种错误，而代码2不会？ 谢谢各位大神

背景：我是在存储过程中使用的...