字符串值

Question

我需要一天的時間

「23:59:59」的工作，但會導致延遲

「24:00:00」是行不通的字符串值：錯誤將數據類型varchar轉換爲datetime。

「1.00：00：00」不工作：將數據類型varchar轉換爲datetime時出錯。

這裏是我的代碼：

PROCEDURE [dbo].[Procedure1] 

    @Start datetime, 
    @Finish datetime, 
    @TimeRange datetime 
AS 
BEGIN 

    SET NOCOUNT ON; 

    declare @TimeRanges as TABLE (SessionStart datetime, SessionEnd datetime); 

    with TimeRanges as (
    select @Start as StartTime, @Start + @TimeRange as EndTime 
    union all 
    select StartTime + @TimeRange, EndTime + @TimeRange 
    from TimeRanges 
    where EndTime < @Finish) 
    select StartTime, EndTime, Count(Test.ScenarioID) as TotalPeaks 
    from TimeRanges as TR left outer join 
     dbo.Test as Test on TR.StartTime <= Test.SessionStartTime and Test.SessionCloseTime < TR.EndTime 
    group by TR.StartTime, TR.EndTime 
END 

Answer 1

您正在嘗試使用datetime類型爲時間跨度類型，不會爲你工作。

我建議你改變你的timerange參數爲一個整數。然後指定它是秒，分，小時，天或其他。

如果你決定讓天：

PROCEDURE [dbo].[Procedure1] 

    @Start datetime, 
    @Finish datetime, 
    @TimeRange int 
AS 
BEGIN 

    SET NOCOUNT ON; 

    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) 
    select StartTime, EndTime, Count(Test.ScenarioID) as TotalPeaks 
    from TimeRanges as TR left outer join 
     dbo.Test as Test on TR.StartTime <= Test.SessionStartTime and Test.SessionCloseTime < TR.EndTime 
    group by TR.StartTime, TR.EndTime 
END