Unknown column 'medico' in 'order clause'
SELECT i.PKimprenta, i.imprenta, l.localidad FROM imprentas i INNER JOIN localidades l ON i.FKlocalidad = l.PKlocalidad WHERE 1 and (i.imprenta like '%504%' or l.localidad like '%504%') group by i.PKimprenta order by medico limit 0,16