s.LastName + ',' + s.FirstName as formattedName
,t.Date
,RIGHT (t.In1, 7) AS TineIn1
,RIGHT (t.Out1, 7) AS TimeOut1
,RIGHT (t.In2, 7) AS TimeIn2
,RIGHT (t.Out2, 7) AS TimeOut1
,RIGHT (t.In3, 7) AS TimeIn3
,RIGHT (t.Out3, 7) AS TimeOut3
, (ISNULL(DATEDIFF(second,t.IN1,t.Out1),0)
+ISNULL(DATEDIFF(second,t.IN2,t.Out2),0)
+ISNULL(DATEDIFF(second,t.IN3,t.Out3),0))/3600.0 AS WorkedHours
我可以获得一天的总小时数,但是我怎样才能获得一周的总小时数,以及一个月的总小时数。