MySQL 5.1 DELETE 触发器,取旧时间值不正确的问题 - V2EX
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uti6770werty
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MySQL 5.1 DELETE 触发器,取旧时间值不正确的问题

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  •   uti6770werty 2022-04-20 16:06:31 +08:00 1413 次点击
    这是一个创建于 1337 天前的主题,其中的信息可能已经有所发展或是发生改变。
    CREATE TABLE `dll` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `lname` varchar(30) DEFAULT NULL, `lid` varchar(5) DEFAULT NULL, `create_at` timestamp NULL DEFAULT NULL, `update_at` timestamp NULL DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8; CREATE TRIGGER `insertrow_dll` BEFORE INSERT ON `dll` FOR EACH ROW SET NEW.`create_at`=NOW(); CREATE TRIGGER `deleterow_dll` AFTER DELETE ON `dll` FOR EACH ROW INSERT INTO ell (lname,lid,create_at,update_at) VALUES (old.lname,old.lid,old.create_at,now()); 

    期望删除 dll 一行数据,其实是移过去 ell ,应该把创建时间也带过去,
    在 ell 看到 create_at,update_at ,取值都被设置成了 NOW(),
    是因为什么原因呢?

    目前尚无回复
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