Ver originalSELECT tp.* FROM TParcela tp LEFT JOIN TReserva tr ON (tp.id_parc = tr.id_parcela AND tp.id_parc NOT IN (SELECT t1.id_parcela FROM TReserva t1) WHERE t1.dia_reserva NOT BETWEEN '2010-04-15' AND '2010-05-09' AND t1.dia_salida NOT BETWEEN '2010-04-15' AND '2010-05-09')) WHERE tp.libre='si' OR tp.libre='res'