SELECT Tabella1.ID_WWW, Count(Tabella1.DS_CLIENTIP) AS Visite, Month(DT_DATETIME) & "/" & Day(DT_DATETIME) & " " & Hour(DT_DATETIME) AS Periodo
FROM LOG
GROUP BY Tabella1.ID_WWW, (Tabella1.DS_CLIENTIP) , Month(DT_DATETIME) & "/" & Day(DT_DATETIME) & " " & Hour(DT_DATETIME)
ORDER BY Tabella1.DS_CLIENTIP