PHP MySQL - 对字母和数字字符串进行排序

Question

我有以下数据:

GROUP 1 - FINANCE
GROUP 10 - SALES
GROUP 11 - MARKETING
GROUP 12 - HR
GROUP 2 - OPS

当MySQL中的数据ORDERING时，它会正确地按上述顺序返回该数据。但是，有没有办法(在不更改数据的情况下，您可以按 Numeric 顺序对其进行排序？如下

GROUP 1 - FINANCE
GROUP 2 - OPS
GROUP 10 - SALES
GROUP 11 - MARKETING
GROUP 12 - HR

谢谢!

Answer 1

添加 ORDER BY
CAST(SUBSTRING_INDEX(SUBSTRING_INDEX(column, ' ', 2), ' ', -1) AS UNSIGNED) 子句应该有所帮助。

使用正确的参数嵌套 SUBSTRING_INDEX 函数可以拆分和提取字符串部分。在这种情况下，将提取第一个字符串部分(在这种情况下为“GROUP”)之后的数字部分。

查询

SELECT
 records.data
FROM (

SELECT 
 "GROUP 1 - FINANCE" AS data
UNION 
SELECT 
 "GROUP 10 - SALES" AS data
UNION 
SELECT 
 "GROUP 11 - MARKETING" AS data 
UNION 
SELECT 
 "GROUP 12 - HR" AS data  
UNION 
SELECT 
 "GROUP 2 - OPS" AS data   
) AS records
ORDER BY 
 CAST(SUBSTRING_INDEX(SUBSTRING_INDEX(records.data, ' ', 2), ' ', -1) AS UNSIGNED)

查看演示 https://www.db-fiddle.com/f/sGqUeTKaDjihRA3Bg3Myca/0