CREO que lo pude solucionar, si esta mal por favor avisenme.
Código SQL:
Ver originalSELECT
resa_fecharemito AS resa_fecharemito,
resa_numeroremito AS resa_numeroremito,
resa_serie AS resa_serie,
resa_idcliente AS resa_idcliente,
rsd_idmedicamento AS rsd_idmedicamento,
rsd_cantidad AS rsd_cantidad,
per_id AS per_id,
per_nombre AS per_nombre,
per_apellido AS per_apellido,
cli_numerosocio AS cli_numerosocio,
'' AS est_idestablecimiento,
'' AS est_dicose,
'' AS emp_id,
'' AS emp_rut
FROM
((((vet_remitosalida
JOIN vet_remitosalidadetalle ON resa_id = rsd_idresa)
JOIN vet_cliente ON cli_id = resa_idcliente)
JOIN vet_clientepersona ON clpe_idcliente = cli_id)
JOIN vet_persona ON per_id = clpe_idpersona)
UNION
SELECT
resa_fecharemito AS resa_fecharemito,
resa_numeroremito AS resa_numeroremito,
resa_serie AS resa_serie,
resa_idcliente AS resa_idcliente,
rsd_idmedicamento AS rsd_idmedicamento,
rsd_cantidad AS rsd_cantidad,
per_id AS per_id,
per_nombre AS per_nombre,
per_apellido AS per_apellido,
cli_numerosocio AS cli_numerosocio,
est_idestablecimiento AS est_idestablecimiento,
est_dicose AS est_dicose,
emp_id AS emp_id,
emp_rut AS emp_rut
FROM
((((((vet_remitosalida
JOIN vet_remitosalidadetalle ON resa_id = rsd_idresa)
JOIN vet_cliente ON cli_id = resa_idcliente)
JOIN vet_clienteestablecimiento ON cles_idcliente = cli_id)
JOIN vet_establecimiento ON est_idestablecimiento = cles_idestablecimiento)
JOIN vet_empresa ON emp_id = est_idempresa)
JOIN vet_persona ON per_id = emp_idpersonadueno);
Muchas Gracias