SELECT 
 persons.id as idPersons, persons.field_name1 as empresa,persons.document,
 person_zones.id as idPersonZone, persons.zone_id as zona_predeterminada, person_zones.sifere_coef as coef,
 person_zones.iibb_aliquot, person_zones.zone_id, zones.name

from person_zones
left join persons on person_zones.person_id = persons.id
join zones on persons.zone_id = zones.id
