Por favor envia el resultado de:
SELECT *
FROM sga_reconocimiento as r
LEFT JOIN sga_reconocimiento_act as a ON a.nro_tramite = r.nro_tramite
ORDER BY r.nro_tramite
Por favor envia el resultado de:
SELECT *
FROM sga_reconocimiento as r
LEFT JOIN sga_reconocimiento_act as a ON a.nro_tramite = r.nro_tramite
ORDER BY r.nro_tramite