I need a simple product quantity update script that doesn't need to upload csv or any other silly maneuvers. Here is an example:
I'm using similar in my current non-presta store and it works. I did try to modify it but it's not working.
mysql_query ("UPDATE $ps_product SET quantity='$s[1]', WHERE reference='$s[0]'") or die (mysql_error ());
Obviously this is a simple job for someone who is familiar with mysql and php commands.