--SELECT CAST(CAST('EF2557C5-7ED1-4B2F-B0DD-693D30E47F26' AS VARBINARY) AS INT) AS UniqId


-- Função com valor Escalar
CREATE FUNCTION [dbo].[fUnqIndForInt](@dd VARCHAR(1000))
RETURNS bigint
BEGIN

   RETURN CAST(CAST(@dd AS VARBINARY) AS INT) 
   
END