Question

I have a small code that allows me to add custom name to a new field from an existing field but it does not remove / (slash) to _ (underscore).

UPDATE `custom` SET custom_url = LOWER(REPLACE(REPLACE(REPLACE(Name, ' ', '_'), '(', ''), ')', ''));

How can I re-write this code so that it also allows me to do that?

Answer 1

Forward slashes have no special meaning in MySQL, just add an extra replace.

UPDATE `custom` 
SET custom_url = LOWER(
                   REPLACE(
                     REPLACE(
                       REPLACE(
                         REPLACE(Name, ' ', '_')
                       , '(', '')
                     , ')', '')
                   ,'/','_')
                 );

If you want to remove the / then replace ,'/','_') with ,'/','') in the bottom replace part.