我已经创建了customer表,该表的触发器不允许customer_id列上的空值。NULL, primary key ( social_number )但是,创建以下触发器将导致此错误ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL</em
嗯,我已经研究过了,还没有找到解决以下问题的方法'SQL Error (1442): Can not update table' messages' in stored function / triggerbecause it is already used by statement Which invoked this stored function / trigger. `
我的触发器已创建,只有当我在消息表上运行插入时,才会抛出此错误,我的触