在寻找问题的解决方案时,我发现了以下sql(Calculate business hours between two dates)。
但是,我希望起点是8:30而不是9,终点是17:30而不是17。目前,我正在使用整数。谁能帮我这个?预先感谢!
Create Function GetWorkingMin(@StartDate DateTime, @EndDate DateTime, @Country Varchar(2)) Returns Int
AS
Begin
Declare @WorkMin int = 0 -- Initialize counter
Declare @Reverse bit -- Flag to hold if direction is reverse
Declare @StartHour int = 9 -- Start of business hours (can be supplied as an argument if needed)
Declare @EndHour int = 17 -- End of business hours (can be supplied as an argument if needed)
Declare @Holidays Table (HDate DateTime) -- Table variable to hold holidayes
-- If dates are in reverse order, switch them and set flag
If @StartDate>@EndDate
Begin
Declare @TempDate DateTime=@StartDate
Set @StartDate=@EndDate
Set @EndDate=@TempDate
Set @Reverse=1
End
Else Set @Reverse = 0
-- Get country holidays from table based on the country code (Feel free to remove this or modify as per your DB schema)
Insert Into @Holidays (HDate) Select HDate from HOLIDAY Where COUNTRYCODE=@Country and HDATE>=DateAdd(dd, DateDiff(dd,0,@StartDate), 0)
If DatePart(HH, @StartDate)<@StartHour Set @StartDate = DateAdd(hour, @StartHour, DateDiff(DAY, 0, @StartDate)) -- If Start time is less than start hour, set it to start hour
If DatePart(HH, @StartDate)>=@EndHour+1 Set @StartDate = DateAdd(hour, @StartHour+24, DateDiff(DAY, 0, @StartDate)) -- If Start time is after end hour, set it to start hour of next day
If DatePart(HH, @EndDate)>=@EndHour+1 Set @EndDate = DateAdd(hour, @EndHour, DateDiff(DAY, 0, @EndDate)) -- If End time is after end hour, set it to end hour
If DatePart(HH, @EndDate)<@StartHour Set @EndDate = DateAdd(hour, @EndHour-24, DateDiff(DAY, 0, @EndDate)) -- If End time is before start hour, set it to end hour of previous day
If @StartDate>@EndDate Return 0
-- If Start and End is on same day
If DateDiff(Day,@StartDate,@EndDate) <= 0
Begin
If Datepart(dw,@StartDate)>1 And DATEPART(dw,@StartDate)<7 -- If day is between sunday and saturday
If (Select Count(*) From @Holidays Where HDATE=DateAdd(dd, DateDiff(dd,0,@StartDate), 0)) = 0 -- If day is not a holiday
If @EndDate<@StartDate Return 0 Else Set @WorkMin=DATEDIFF(MI, @StartDate, @EndDate) -- Calculate difference
Else Return 0
Else Return 0
End
Else Begin
Declare @Partial int=1 -- Set partial day flag
While DateDiff(Day,@StartDate,@EndDate) > 0 -- While start and end days are different
Begin
If Datepart(dw,@StartDate)>1 And DATEPART(dw,@StartDate)<7 -- If this is a weekday
Begin
If (Select Count(*) From @Holidays Where HDATE=DateAdd(dd, DateDiff(dd,0,@StartDate), 0)) = 0 -- If this is not a holiday
Begin
If @Partial=1 -- If this is the first iteration, calculate partial time
Begin
Set @WorkMin=@WorkMin + DATEDIFF(MI, @StartDate, DateAdd(hour, @EndHour, DateDiff(DAY, 0, @StartDate)))
Set @StartDate=DateAdd(hour, @StartHour+24, DateDiff(DAY, 0, @StartDate))
Set @Partial=0
End
Else Begin -- If this is a full day, add full minutes
Set @WorkMin=@WorkMin + (@EndHour-@StartHour)*60
Set @StartDate = DATEADD(DD,1,@StartDate)
End
End
Else Set (at)StartDate = DATEADD(HOUR, (at)StartHour, CAST(CAST(DATEADD(DD,1,(at)StartDate) AS DATE) AS DATETIME))
End
Else Set (at)StartDate = DATEADD(HOUR, (at)StartHour, CAST(CAST(DATEADD(DD,1,(at)StartDate) AS DATE) AS DATETIME))
End
If Datepart(dw,@StartDate)>1 And DATEPART(dw,@StartDate)<7 -- If last day is a weekday
If (Select Count(*) From @Holidays Where HDATE=DateAdd(dd, DateDiff(dd,0,@StartDate), 0)) = 0 -- And it is not a holiday
If @Partial=0 Set @WorkMin=@WorkMin + DATEDIFF(MI, @StartDate, @EndDate) Else Set @WorkMin=@WorkMin + DATEDIFF(MI, DateAdd(hour, @StartHour, DateDiff(DAY, 0, @StartDate)), @EndDate)
End
If @Reverse=1 Set @WorkMin=-@WorkMin
Return @WorkMin
结束
答案 0 :(得分:0)
使用TIME
作为开始时间。然后创建INT
变量,将转换后的值放入分钟以用于条件。
我为您创建了示例。
DECLARE @StartDate DATETIME='2018-12-10 10:00'
DECLARE @ExpectedStartTime TIME='08:30'
DECLARE @ExpectedStartMin INT=DATEPART(HOUR,@ExpectedStartTime)*60+DATEPART(MINUTE,@ExpectedStartTime)
DECLARE @ActualStartMin INT=DATEPART(HOUR,@StartDate)*60+DATEPART(MINUTE,@StartDate)
--Check before change the StartDate
SELECT @ExpectedStartMin, @ActualStartMin, @StartDate
If @ExpectedStartMin<@ActualStartMin Set @StartDate = CAST(CAST(@StartDate AS DATE) AS DATETIME)+@ExpectedStartTime
-- same way to the other conditions.
--
--
--Check after change the StartDate
SELECT @ExpectedStartMin, @ActualStartMin, @StartDate