如何在ORDER BY子句中定义自定义订单? [英] How to define a custom order in ORDER BY clause?

问题描述

我有以下查询:

SELECT *
FROM articles
WHERE article.category IN (1, 57, 67, 78)
ORDER BY article.category ASC

我不想按升序排序，而是想像这样:

Instead of ordering it ascending, I would like to order it like:

ORDER BY article.category (1, 67, 78, 57)

这可能吗?

推荐答案

使用FIELD函数:-

Use the FIELD function:-

SELECT *
FROM articles
WHERE article.category IN (1, 57, 67, 78)
ORDER BY FIELD(article.category, 1, 67, 78, 57)

编辑-如果找不到，它将返回0，因此，如果要先对2个值进行排序，则函数中可能只包含这2个值，但取反并按降序排序.

EDIT - If not found it will return 0, so if you want 2 values sorted first then possibly just have those 2 in the function but reversed and sort descending.

SELECT *
FROM articles
WHERE article.category IN (1, 57, 67, 78)
ORDER BY FIELD(article.category, 67, 1) DESC

这将把类别1放在第一位，其次是类别67，然后再加上其他任何类别

This will put category of 1 first, category 67 afterwards, followed by any others

这篇关于如何在ORDER BY子句中定义自定义订单?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IT屋！