如何自动将MySQL列转换为小写

本文介绍了如何自动将MySQL列转换为小写的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

是否存在可以添加到列中的属性，以便将其值转换为小写?而不是通过PHP对每个单个值执行此操作?

Is there a property that I can add to a column so that it converts its value to lowercase? Instead of doing it for every single value through PHP?

推荐答案

您可能可以通过触发，该触发会在插入或更新时触发.我自己想创建一个视图该列的小写版本.视图的SQL可能看起来像

You could probably do it through a trigger that fires on insert or update. Myself, I'd rather just create a view that has a lower-case version of the column in question. The SQL for the view might look like

SELECT ID, LOWER(MY_COLUMN) AS MY_COLUMN_LOWERCASE FROM MY_TABLE;