How to order 1,2,3 not 1, 10, 11, 12 in mySQL

Question

The following code outputs in order of 1, 10, 11, 12 of id.

I want to make it 1,2,3,4...

Could anyone tell me what I should do please.

$Q = $         


        

Answer 1

As previously mentioned MySQL doesn't support alphanumeric sorting. One common trick to solve this is to first order by length:

ORDER BY LENGTH(column_name), column_name

As long as the non-numeric part of the value is the same length, this will sort 1 before 10, 10 before 100, etc.