在MySQL触发器中抛出错误 [英] Throw an error in a MySQL trigger

问题描述

如果我在表上有一个触发 更新之前，如何抛出一个错误，更新该表？

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

推荐答案

这里有一个hack 。它不干净，但它看起来可能工作：

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

基本上，你只是尝试更新不存在的列。

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

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