remove first character from mysql field

Question

I need advices in order to make a process on my list of values. I have a table llx_societe and some fields where one of them is code_client. This field looks like :

0099
00100
00101
00102
...
00998
00999
001000

I want to remove the first zero for all values between 00100 and 00999 in order to get 0100 until 0999.

I wrote this command :

UPDATE `llx_societe` 
SET `code_client`= SUBSTR(code_client,1) 
WHERE `code_client` BETWEEN '00100' AND '00999';

But nothing, none lines are proceed.

Have you an explanation ?

Answer 1

SQL starts counting from 1 and not 0. Try this:

UPDATE `llx_societe` 
SET `code_client`= SUBSTR(code_client,2) 
WHERE `code_client` BETWEEN '00100' AND '00999';