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

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?

解决方案

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.

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