Ver originalSELECT '0000000001' asociacion, '' clave, 'Todas' nombre, 'Todas' clavenom UNION ALL SELECT * FROM (SELECT *, CONCAT(clave,' - ', nombre) AS clavenom FROM t_claves WHERE asociacion LIKE '0000000001' AND clave!='' AND (clave!='4171' AND clave!='4172' AND clave!='4173') ORDER BY clave) t_claves