Diğer tarih makalelerini kontrol ettiyseniz, tabloya zaten sahip olabilirsiniz, değilse, oluşturmak için aşağıdaki kodu kullanın.
Bunlar İngiltere ve Galler'deki standart tatillere dayanmaktadır.
Ana sayfada diğer Ülkeler için işlevler vardır.
CREATE TABLE Dates.Calendar(CalendarDate DATETIME2 NOT NULL CONSTRAINT PK_CalendarDate PRIMARY KEY,CalendarCA AS (DATEDIFF(DAY,DATEADD(DAY,1-DATEPART(DAY,CalendarDate),CalendarDate),CalendarDate)/7)+1 PERSISTED,CalendarCD AS (DATEDIFF(DAY,CalendarDate,DATEADD(DAY,-1,DATEADD(MONTH,1,DATEADD(DAY,1-DATEPART(DAY,CalendarDate),CalendarDate))))/7)+1 PERSISTED,WeekDayID AS (DATEPART(weekday,[CalendarDate])),WeekDayName AS (case DATEPART(weekday,[CalendarDate]) when (1) then 'Sunday' when (2) then 'Monday' when (3) then 'Tuesday' when (4) then 'Wednesday' when (5) then 'Thursday' when (6) then 'Friday' when (7) then 'Saturday' end))GODECLARE @D DATETIME2='1850-01-01'WHILE @D<='2099-12-31' BEGININSERT INTO Dates.Calendar(CalendarDate) SELECT @DSET @D=DATEADD(DAY,1,@D)ENDGOCREATE TABLE Dates.CalendarHolidays(CalendarDate DATETIME2 NOT NULL,CalendarFunction INT NOT NULL,HolidayType VARCHAR(100) NULL,CONSTRAINT PK_Holidays_Id PRIMARY KEY(CalendarDate,CalendarFunction))GO/*English & Welsh Holidays*/INSERT INTO Dates.CalendarHolidaysSELECT CalendarDate,0,'New Years Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=1 AND DATEPART(DAY,CalendarDate)=1 UNION --New Years DaySELECT CalendarDate,0,'Good Friday' FROM Dates.Calendar WHERE CalendarDate=DATEADD(DAY,-2,Dates.GetEasterDate(DATEPART(YEAR,CalendarDate))) UNION--Good FridaySELECT CalendarDate,0,'Easter Monday' FROM Dates.Calendar WHERE CalendarDate=DATEADD(DAY,1,Dates.GetEasterDate(DATEPART(YEAR,CalendarDate))) UNION--Easter MondaySELECT CalendarDate,0,'May Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=5 AND WeekDayID=2 AND (CalendarCA=1 OR CalendarCD=1)UNION--May HolidaysSELECT CalendarDate,0,'August Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=8 AND WeekDayID=2 AND (CalendarCD=1) UNION--August HolidaysSELECT CalendarDate,0,'Christmas Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=25 UNION --Christmas DaySELECT CalendarDate,0,'Boxing Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=26 --Boxing DayGO
Şimdi verilere sahibiz, her gün baştan sona bir fonksiyon yaratabiliriz ve Cumartesi, Pazar veya tatil günleri veritabanında olmayan @Count değerini 1'e ekleriz.
Önceki işlevin esnek hale getirilebileceğine dair bazı geri bildirimler aldık ve bazı ek müşteri gereksinimlerine tekrar baktık, bunu daha fazla seçenekle güncelledik:
CREATE FUNCTION Dates.GetDateAdjusted(@AdjustDate AS DATETIME2,@CalendarFunction INT,@AdjustDays AS INT,@AdjustMode BIT,@AdjustWeekEnds BIT,@AdjustHolidays BIT) RETURNS DATETIME2 AS BEGINSELECT @AdjustDate=DATEADD(DAY,(CASE @AdjustMode WHEN 0 THEN -1 ELSE 1 END),@AdjustDate),@AdjustDays=(CASE @AdjustMode WHEN 0 THEN @AdjustDays+1 ELSE (0-@AdjustDays)-1 END)DECLARE @AdjustCount INT=0,@AdjustWorkDays INT=0,@Date DATETIME2=@AdjustDate/*Add Days*/WHILE @AdjustMode=0 AND @AdjustWorkDays < @AdjustDaysBEGIN SET @AdjustCount=@AdjustCount+1 SET @Date=DATEADD(DAY,@AdjustCount,@AdjustDate) IF NOT ((DATEPART(WEEKDAY,@Date) IN (1,7) AND @AdjustWeekEnds=1) OR EXISTS (SELECT * FROM Dates.CalendarHolidays WHERE CalendarDate=@Date AND CalendarFunction=@CalendarFunction AND @AdjustHolidays=1)) BEGIN SET @AdjustWorkDays = @AdjustWorkDays + 1 ENDEND/*Subtract Days*/WHILE @AdjustMode=1 AND @AdjustWorkDays > @AdjustDaysBEGIN SET @AdjustCount=@AdjustCount-1 SET @Date=DATEADD(DAY,@AdjustCount,@AdjustDate) IF NOT ((DATEPART(WEEKDAY,@Date) IN (1,7)AND @AdjustWeekEnds=1) OR EXISTS (SELECT * FROM Dates.CalendarHolidays WHERE CalendarDate=@Date AND CalendarFunction=@CalendarFunction AND @AdjustHolidays=1)) BEGIN SET @AdjustWorkDays = @AdjustWorkDays - 1 ENDEND RETURN @Date END GOSELECT Dates.GetDateAdjusted('2014-05-01',0,1,0,1,1)--'2014-05-02' SELECT Dates.GetDateAdjusted('2014-05-01',0,2,0,0,0)--'2014-05-03' SELECT Dates.GetDateAdjusted('2014-05-01',0,2,0,1,1)--'2014-05-06' SELECT Dates.GetDateAdjusted('2014-05-01',0,3,0,1,1)--'2014-05-07' SELECT Dates.GetDateAdjusted('2014-05-01',0,4,0,1,1)--'2014-05-08' SELECT Dates.GetDateAdjusted('2014-05-01',0,5,0,1,1)--'2014-05-09' SELECT Dates.GetDateAdjusted('2014-05-01',0,6,0,1,1)--'2014-05-12'