如何使用SQL查询从字母数字中获取数值并按数字排序

Question

In MySQL DB

Colum1

Drill 14"
Drill 15"
Drill 10" 
Drill 11"
Drill 5"

I want to get the numerical values and sort it like so

Colum1

5
10
11
14
15

Note that i don't want to use declare because it does not accepted by the Jasper - so if there is simple SQL that can do it should be fine

Answer 1

You can use SUBSTRING_INDEX

ORDER BY SUBSTRING_INDEX(Colum1,' ', -1)+0 ASC

---

Demonstration:

SET @str := 'Drill 11';

SELECT SUBSTRING_INDEX(@str,' ',-1)+0 AS number;

Output:

number 
11

Demo here:

SQLFiddle

Answer 2

Try This

        SELECT * 
        FROM Table_Name 
        WHERE Colum1 REGEXP '^[0-9]+$';