需求:

根據結束時間和開始時間統計任務的工作時長

思路:

程式碼:

  1 CREATE FUNCTION [dbo].[Fn_CountWorkTime_Books_V2]
  2 (@startDate datetime , @endDate datetime)
  3 RETURNS float
  4 as
  5 BEGIN
  6     if(@startDate> @endDate)
  7     begin
  8         return 0
  9     end
 10     
 11     declare @returnValue float --
 
 返回結果(天)
 12     declare @returnInt Int -- 返回工作時長(秒)
 13     declare @startDateInt int -- 開始時間時間範圍
 14     declare @endDateInt int -- 結束時間時間範圍
 15     declare @isHolidays int -- 是否為節假日,週六日
 16     declare @startDateReturn int -- 非同一天,開始當天工作時長
 17     declare @endDateReturn int -- 非同一天,結束當天工作時長
 18     declare
 
 @middleReturn int -- 非同一天,中間工作時長
 19     
 20     begin
 21         -- 開始時間時間範圍
 22         if(@startDate < DATEADD(n,30,DATEADD(HOUR,8,dbo.GETCURDAY(@startDate))))
 23         begin
 24             set @startDateInt = 2
 25             set @startDateReturn = 8*60*60            
 26         end
 27         else
 
 if(@startDate>= DATEADD(n,30,DATEADD(HOUR,8,dbo.GETCURDAY(@startDate))) and @startDate<= DATEADD(HOUR,12,dbo.GETCURDAY(@startDate)))
 28         begin
 29             set @startDateInt = 2
 30             set @startDateReturn = DATEDIFF(ss,@startDate,DATEADD(HOUR,12,dbo.GETCURDAY(@startDate))) + 4.5*60*60
 31         end
 32         else if(@startDate>DATEADD(HOUR,12,dbo.GETCURDAY(@startDate)) and @startDate< DATEADD(HOUR,13,dbo.GETCURDAY(@startDate)))
 33         begin
 34             set @startDateInt = 4
 35             set @startDateReturn = 4.5*60*60
 36         end
 37         else if(@startDate>=DATEADD(HOUR,13,dbo.GETCURDAY(@startDate)) and @startDate<=DATEADD(n,30,DATEADD(HOUR,17,dbo.GETCURDAY(@startDate))) )
 38         begin
 39             set @startDateInt = 4
 40             set @startDateReturn = DATEDIFF(ss,@startDate,DATEADD(n,30,DATEADD(HOUR,17,dbo.GETCURDAY(@startDate))))
 41         end
 42         else
 43         begin
 44             set @startDateInt = 4
 45             set @startDateReturn = 0
 46         end
 47         -- 結束時間時間範圍
 48         if(@endDate < DATEADD(n,30,DATEADD(HOUR,8,dbo.GETCURDAY(@endDate))))
 49         begin
 50             set @endDateInt = 2    
 51             set @endDateReturn = 0
 52         end
 53         else if(@endDate>= DATEADD(n,30,DATEADD(HOUR,8,dbo.GETCURDAY(@endDate))) and @endDate<= DATEADD(HOUR,12,dbo.GETCURDAY(@endDate)))
 54         begin
 55             set @endDateInt = 2
 56             set @endDateReturn = DATEDIFF(ss,DATEADD(HOUR,8,dbo.GETCURDAY(@endDate)),@endDate)
 57         end
 58         else if(@endDate>DATEADD(HOUR,12,dbo.GETCURDAY(@endDate)) and @endDate< DATEADD(HOUR,13,dbo.GETCURDAY(@endDate)))
 59         begin
 60             set @endDateInt = 4
 61             set @endDateReturn = 3.5*60*60
 62         end
 63         else if(@endDate>=DATEADD(HOUR,13,dbo.GETCURDAY(@endDate)) and @endDate<=DATEADD(n,30,DATEADD(HOUR,17,dbo.GETCURDAY(@endDate))) )
 64         begin
 65             set @endDateInt = 4
 66             set @endDateReturn = DATEDIFF(ss,DATEADD(HOUR,13,dbo.GETCURDAY(@endDate)),@endDate)+3.5*60*60
 67         end
 68         else
 69         begin
 70             set @endDateInt = 4
 71             set @endDateReturn = 8*60*60
 72         end
 73     end
 74         
 75     -- 判斷是否為同一天
 76     if(convert(varchar(10), @startDate,23) = convert(varchar(10), @endDate,23))
 77     begin
 78         --判斷是否為節假日
 79         select @isHolidays=count(1) from 節假日配置表  where 日期=convert(varchar(10), @startDate,23)
 80         if(@isHolidays!=0)
 81         begin
 82             set @returnInt = 0
 83         end
 84         else
 85         begin
 86             if(@startDateInt = 2 and @startDateInt=@endDateInt)
 87             begin
 88                 -- 結束-開始
 89                 set @returnInt = DATEDIFF(ss,@startDate,@endDate)
 90             end
 91             else if(@startDateInt = 2 and @endDateInt = 4)
 92             begin
 93                 -- (12點-開始)+(結束-13)
 94                 set @returnInt = DATEDIFF(ss,@startDate,DATEADD(HOUR,12,dbo.GETCURDAY(@endDate))) + DATEDIFF(ss,DATEADD(HOUR,13,dbo.GETCURDAY(@endDate)),@endDate)
 95             end
 96             else
 97             begin
 98                 -- 結束-開始
 99                 set @returnInt = DATEDIFF(ss,@startDate,@endDate)
100             end
101         end
102     end
103     else
104     begin
105         -- 不為同一天,工作時長=開始當天工作時長+結束當天工作時長+中間工作時長    
106         -- 中間工作時長
107         declare @totalDays int
108         declare @totalUnWorkDay int
109         set @totalDays = DATEDIFF(day,@startDate,@endDate)
110         if(@totalDays > 1)
111         begin
112             select @totalUnWorkDay=count(1) from 節假日配置表 where 日期>@startDate and 日期<@endDate
113             set @middleReturn = (@totalDays-1-@totalUnWorkDay)*8*60*60
114         end
115         else
116         begin
117             set @middleReturn = 0
118         end
119         
120         set @returnInt = @startDateReturn+@endDateReturn+@middleReturn
121     end
122     
123     set @returnValue = cast(cast(@returnInt as float)/cast(28800 as float) as float(4))
124     return @returnValue
125 end

ps: 網上實在是搜不到8小時制統計工作時長的函式,特此將自己的解決思路分享出來,希望能幫助到其他人. 如果你和更好的解決思路 ,歡迎討論.