简单的触发器请教，在up之后判断值，再修改一个值
各位大大好，最近刚刚接触PHP 和MYSQL 知道MYSQL 有个触发器，正好有个小程序 需要自动判断值去修改另一个字段值，想通过触发器实现，也可以顺便学习一下触发器。所以前来请教各位大大，
是这样的，user 表里 有2个字段 一个是 jifen 一个是 dengji ，
触发器需要判断 在jifen 改变的时候：
如果 jifen 大于等于 5000的时候 dengji 为 2 ，
如果 jifen 大于等于 10000的时候 dengji 为 3 ，
是在一张表里，不知道触发器可以实现吗？ 触发器怎么写呢？
回复讨论(解决方案)
楼主这种情况没必要用触发器呀，你是不是只是想测试一下，建议去学习一下触发器基础知识就好了。
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