按最后3个字符排序 [英] Order by last 3 chars

问题描述

我有一张桌子，像这样:

I have a table like:

id  name
--------
1   clark_009
2   clark_012
3   johny_002
4   johny_010

我需要按以下顺序获取结果:

I need to get results in this order:

johny_002
clark_009
johny_010
clark_012

不要问我我已经尝试过什么，我也不知道该怎么做.

Do not ask me what I already tried, I have no idea how to do this.

推荐答案

做到这一点，只需选择最右边的3个字符并按该值升序进行排序即可.

This will do it, very simply selecting the right-most 3 characters and ordering by that value ascending.

SELECT *
FROM table_name
ORDER BY RIGHT(name, 3) ASC;

应该补充的是，随着数据的增长，这将成为一种低效的解决方案.最终，您可能希望将数字附录存储在单独的索引整数列中，以使排序效率达到最佳.

It should be added that as your data grows, this will become an inefficient solution. Eventually, you'll probably want to store the numeric appendix in a separate, indexed integer column, so that sorting will be optimally efficient.

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