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