Unknown column '30' 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 '%3017%' or l.localidad like '%3017%') group by i.PKimprenta order by 30 limit 0,16