引发错误，防止 MySQL 触发器中的表更新

Throw an error preventing a table update in a MySQL trigger(引发错误，防止 MySQL 触发器中的表更新)

问题描述

If I have a trigger before the update on a table, how can I throw an error that prevents the update on that table?

Here is one hack that may work. It isn't clean, but it looks like it might work:

Essentially, you just try to update a column that doesn't exist.

这篇关于引发错误，防止 MySQL 触发器中的表更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！