Thats what I tried to search in phpinfo. Isn't this kind of info available in phpinfo ? I am not running the webhost so I cannot check out the php.ini values.
depending on how they set up your phpMyAdmin system, you could be able to do it there. Basically, if you see a privledges link when you first log into phpMyAdmin, you can edit the privs. You may not be able to add a user however.. I'd check with your host once you check that out.