I have this query:
SELECT DISTINCT Q.[creation_date], Round(Now()-Q.[creation_date],0) AS Diferenc,
Q.[Nº Siniest], Q.Asunt, Q.Usu, Q.Obs
FROM [HISTORIC] AS Q
WHERE (((Q.[creation_date])=(SELECT MAX([creation_date])
FROM [HISTORIC] As T
WHERE T.[Nº Siniest] = Q.[Nº Siniest])) AND ((Q.Asunt) Not...