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Asked: 2026-06-05T04:36:43+00:00

I have data in Microsoft SQL Server 2008 that I need to SUM. The

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I have data in Microsoft SQL Server 2008 that I need to SUM. The catch is I need to group the sums by a 24 hour period. The 24 hour period is from 3:00pm one day to 3:00pm the next day.

For Example

DateExited, Value

1/1/2012 15:00, 5

1/1/2012 15:04, 6

1/1/2012 17:00, 7

1/2/2012 00:00, -5

1/2/2012 09:00, 10

1/2/2012 15:00, 31

The sum of that should be 54. I have the following query but that groups everything from midnight to midnight instead of 3:00 pm to 3:00 pm

SELECT dateadd(day,datediff(day,0, dateadd(hh, 0, DateExited) ),0) As SummaryDate, SUM(Value) as s1
FROM Test
where DateExited BETWEEN dateadd(year,datediff(year,0,GETDATE()),0) AND GetDate()
GROUP BY dateadd(day,datediff(day,0, dateadd(hh, 0, DateExited) ),0)
ORDER BY SummaryDate
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1 Answer

  1. Editorial Team

    You could add minus 15 hours, and then cast the result to date:

    select  cast(dateadd(hour,-15,'2012-05-06 14:30') as date) -- 2012-05-05
select  cast(dateadd(hour,-15,'2012-05-06 15:30') as date) -- 2012-05-06

    Giving you a group by like:

    group by cast(dateadd(hour,-15,'2012-05-06 03:30') as date)
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