obtener dos valor en un mismo registro, sql

SELECT x.valor , y.valor FROM (SELECT valor from configuracion t1 where elem='vcto_folios') as x, (SELECT valor from configuracion t2 where elem='vcto_caf') as y

SELECT T1.valor AS [RUT],T2.valor AS [RS]
FROM configuracion T1 LEFT JOIN configuracion T2 ON T2.elem = 'razon_social'
WHERE T1.elem='rut_empresa'



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