Question

I have mysql database like this

id | code
1  | bok-1
2  | bok-2
3  | bok-3
4  | inv-1
5  | inv-2
6  | inv-3

How do i get latest number of prefix bok-?
code which from the example above the result will be bok-3

Answer 1

This works :

select code
from Table1
where code like "bok%"
order by cast(substring(code from 5) as signed) desc
limit 1

EDIT :

it now gives bok-11 if there is a bok-11 in the list, as I suppose 11 is greater than 3.