字符串值

Question

我需要一天的时间

“23:59:59”的工作，但会导致延迟

“24:00:00”是行不通的字符串值：错误将数据类型varchar转换为datetime。

“1.00：00：00”不工作：将数据类型varchar转换为datetime时出错。

这里是我的代码：

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

您正在尝试使用datetime类型为时间跨度类型，不会为你工作。

我建议你改变你的timerange参数为一个整数。然后指定它是秒，分，小时，天或其他。

如果你决定让天：

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