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我解決了1天計算的問題,但是當我將日期分成1天時出現了問題。TSQL日期範圍日復一日地計算
declare @Start datetime
declare @Finish datetime
declare @TimeRange int
set @Start = N'2012-10-16 00:00:00.000'
set @Finish = N'2012-10-19 00:00:00.000'
set @TimeRange = 1
declare @TimeRanges as TABLE (SessionStart datetime, SessionEnd datetime);
with TimeRanges as
( select @Start as StartTime, DATEADD(day, @TimeRange, @Start) as EndTime
union all
select DATEADD(day, @TimeRange, StartTime), DATEADD(day, @TimeRange, EndTime)
from TimeRanges
where EndTime < @Finish
)
timeRanges tables將@Start和@Finish分成幾天。
這裏的問題開始什麼:
select StartTime, EndTime,TMP.NoOfCalls
from (SELECT TOP 1 DATEADD(SECOND, Number, c.SessionStartTime) CallTime, COUNT(C.ScenarioID) NoOfCalls FROM test c
INNER JOIN Numbers N ON N.Number <= DATEDIFF(SECOND, C.SessionStartTime, C.SessionCloseTime)
where c.SessionStarttime >= @Start and c.SessionCloseTime <= @Finish
GROUP BY DATEADD(SECOND, Number, c.SessionStartTime)
ORDER BY NoOfCalls DESC
)as TMP left outer join TimeRanges as TR on @Start <= TR.StartTime and TR.EndTime <= @Finish
group by TR.StartTime, TR.EndTime,TMP.NoOfCalls
order by TR.StartTime
這是我得到的結果是:
其實260是N'2012-10-17 00之間的結果:00:00.000'和N'2012-10-18 00:00:00.000',但我希望分開結果。
我的樣品測試表:
SessionID SessionStartTime SessionCloseTime
24 2012-10-16 01:00:06.000 2012-10-16 01:01:22.000
24 2012-10-16 01:00:08.000 2012-10-16 01:01:10.000
24 2012-10-16 01:00:16.000 2012-10-16 01:01:12.000
24 2012-10-16 01:00:30.000 2012-10-16 01:01:48.000
24 2012-10-16 01:00:41.000 2012-10-16 01:02:08.000
24 2012-10-16 01:00:48.000 2012-10-16 01:01:34.000
24 2012-10-16 01:00:56.000 2012-10-16 01:03:09.000
24 2012-10-16 01:01:02.000 2012-10-16 01:02:13.000
24 2012-10-16 01:01:05.000 2012-10-16 01:03:16.000
24 2012-10-16 01:01:09.000 2012-10-16 01:02:42.000
24 2012-10-16 01:01:15.000 2012-10-16 01:02:48.000
24 2012-10-16 01:01:18.000 2012-10-16 01:02:14.000
24 2012-10-16 01:01:18.000 2012-10-16 01:02:06.000
24 2012-10-16 01:01:42.000 2012-10-16 01:03:16.000
24 2012-10-16 01:01:45.000 2012-10-16 01:03:04.000
'SELECT'你沒有使用'TimeRanges' CTE前面定義。另外,什麼是數字表格? – GolfWolf
對不起,我糾正它數字只是我在計數時使用的示例數字表開始1,2,3 .... 100000 – cihata87
我仍然試圖找出你想用這個來實現什麼。我在http://www.sqlfiddle.com/#!3/4970c/11上製作了在線運行版本。你可以看看並描述在這種情況下期望的輸出是什麼? – GolfWolf