Отговорът на Баран е коригиран и модифициран за SQL 2005
SQL 2008 и по-нови версии:
-- =============================================
-- Author: Baran Kaynak (modified by Kodak 2012-04-18)
-- Create date: 14.03.2011
-- Description: 09:30 ile 17:30 arasındaki iş saatlerini hafta sonlarını almayarak toplar.
-- =============================================
CREATE FUNCTION [dbo].[WorkTime]
(
@StartDate DATETIME,
@FinishDate DATETIME
)
RETURNS BIGINT
AS
BEGIN
DECLARE @Temp BIGINT
SET @Temp=0
DECLARE @FirstDay DATE
SET @FirstDay = CONVERT(DATE, @StartDate, 112)
DECLARE @LastDay DATE
SET @LastDay = CONVERT(DATE, @FinishDate, 112)
DECLARE @StartTime TIME
SET @StartTime = CONVERT(TIME, @StartDate)
DECLARE @FinishTime TIME
SET @FinishTime = CONVERT(TIME, @FinishDate)
DECLARE @WorkStart TIME
SET @WorkStart = '09:00'
DECLARE @WorkFinish TIME
SET @WorkFinish = '17:00'
DECLARE @DailyWorkTime BIGINT
SET @DailyWorkTime = DATEDIFF(MINUTE, @WorkStart, @WorkFinish)
IF (@StartTime<@WorkStart)
BEGIN
SET @StartTime = @WorkStart
END
IF (@FinishTime>@WorkFinish)
BEGIN
SET @[email protected]
END
IF (@FinishTime<@WorkStart)
BEGIN
SET @[email protected]
END
IF (@StartTime>@WorkFinish)
BEGIN
SET @StartTime = @WorkFinish
END
DECLARE @CurrentDate DATE
SET @CurrentDate = @FirstDay
DECLARE @LastDate DATE
SET @LastDate = @LastDay
WHILE(@CurrentDate<[email protected])
BEGIN
IF (DATEPART(dw, @CurrentDate)!=1 AND DATEPART(dw, @CurrentDate)!=7)
BEGIN
IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + @DailyWorkTime
END
--IF it starts at startdate and it finishes not this date find diff between work finish and start as minutes
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + DATEDIFF(MINUTE, @StartTime, @WorkFinish)
END
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + DATEDIFF(MINUTE, @WorkStart, @FinishTime)
END
--IF it starts and finishes in the same date
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = DATEDIFF(MINUTE, @StartTime, @FinishTime)
END
END
SET @CurrentDate = DATEADD(day, 1, @CurrentDate)
END
-- Return the result of the function
IF @Temp<0
BEGIN
SET @Temp=0
END
RETURN @Temp
END
SQL 2005 и по-долу:
-- =============================================
-- Author: Baran Kaynak (modified by Kodak 2012-04-18)
-- Create date: 14.03.2011
-- Description: 09:30 ile 17:30 arasındaki iş saatlerini hafta sonlarını almayarak toplar.
-- =============================================
CREATE FUNCTION [dbo].[WorkTime]
(
@StartDate DATETIME,
@FinishDate DATETIME
)
RETURNS BIGINT
AS
BEGIN
DECLARE @Temp BIGINT
SET @Temp=0
DECLARE @FirstDay DATETIME
SET @FirstDay = DATEADD(dd, 0, DATEDIFF(dd, 0, @StartDate))
DECLARE @LastDay DATETIME
SET @LastDay = DATEADD(dd, 0, DATEDIFF(dd, 0, @FinishDate))
DECLARE @StartTime DATETIME
SET @StartTime = @StartDate - DATEADD(dd, DATEDIFF(dd, 0, @StartDate), 0)
DECLARE @FinishTime DATETIME
SET @FinishTime = @FinishDate - DATEADD(dd, DATEDIFF(dd, 0, @FinishDate), 0)
DECLARE @WorkStart DATETIME
SET @WorkStart = CONVERT(DATETIME, '09:00', 8)
DECLARE @WorkFinish DATETIME
SET @WorkFinish = CONVERT(DATETIME, '17:00', 8)
DECLARE @DailyWorkTime BIGINT
SET @DailyWorkTime = DATEDIFF(MINUTE, @WorkStart, @WorkFinish)
IF (@StartTime<@WorkStart)
BEGIN
SET @StartTime = @WorkStart
END
IF (@FinishTime>@WorkFinish)
BEGIN
SET @[email protected]
END
IF (@FinishTime<@WorkStart)
BEGIN
SET @[email protected]
END
IF (@StartTime>@WorkFinish)
BEGIN
SET @StartTime = @WorkFinish
END
DECLARE @CurrentDate DATETIME
SET @CurrentDate = @FirstDay
DECLARE @LastDate DATETIME
SET @LastDate = @LastDay
WHILE(@CurrentDate<[email protected])
BEGIN
IF (DATEPART(dw, @CurrentDate)!=1 AND DATEPART(dw, @CurrentDate)!=7)
BEGIN
IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + @DailyWorkTime
END
--IF it starts at startdate and it finishes not this date find diff between work finish and start as minutes
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + DATEDIFF(MINUTE, @StartTime, @WorkFinish)
END
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = @Temp + DATEDIFF(MINUTE, @WorkStart, @FinishTime)
END
--IF it starts and finishes in the same date
ELSE IF (@[email protected]) AND (@[email protected])
BEGIN
SET @Temp = DATEDIFF(MINUTE, @StartTime, @FinishTime)
END
END
SET @CurrentDate = DATEADD(day, 1, @CurrentDate)
END
-- Return the result of the function
IF @Temp<0
BEGIN
SET @Temp=0
END
RETURN @Temp
END