Vous avez besoin d'un tableau avec des heures ouvrables valides, avec les week-ends et les jours fériés exclus (ou marqués comme week-end/vacances afin que vous puissiez les ignorer.) Chaque ligne représente un jour et le nombre d'heures de travail pour ce jour. Ensuite, vous interrogez la table des heures ouvrables de votre date de début à la première date (min) où la somme (heures * 60) est supérieure à votre paramètre minutes, à l'exclusion des lignes marquées week-end/vacances. Cela vous donne votre date de fin.
Voici le tableau des jours :
CREATE TABLE [dbo].[tblDay](
[dt] [datetime] NOT NULL,
[dayOfWk] [int] NULL,
[dayOfWkInMo] [int] NULL,
[isWeekend] [bit] NOT NULL,
[holidayID] [int] NULL,
[workingDayCount] [int] NULL,
CONSTRAINT [PK_tblDay] PRIMARY KEY CLUSTERED
(
[dt] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
voici comment je remplis le tableau avec les jours :
CREATE PROCEDURE [dbo].[usp_tblDay]
AS
BEGIN
SET NOCOUNT ON;
DECLARE
@Dt datetime ,
@wkInMo int,
@firstDwOfMo int,
@holID int,
@workDayCount int,
@weekday int,
@month int,
@day int,
@isWkEnd bit
set @workDayCount = 0
SET @Dt = CONVERT( datetime, '2008-01-01' )
while @dt < '2020-01-01'
begin
delete from tblDay where dt = @dt
set @weekday = datepart( weekday, @Dt )
set @month = datepart(month,@dt)
set @day = datepart(day,@dt)
if @day = 1 -- 1st of mo
begin
set @wkInMo = 1
set @firstDwOfMo = @weekday
end
if ((@weekday = 7) or (@weekday = 1))
set @isWkEnd = 1
else
set @isWkEnd = 0
if @isWkEnd = 0 and (@month = 1 and @day = 1)
set @holID=1 -- new years on workday
else if @weekday= 6 and (@month = 12 and @day = 31)
set @holID=1 -- holiday on sat, change to fri
else if @weekday= 2 and (@month = 1 and @day = 2)
set @holID=1 -- holiday on sun, change to mon
else if @wkInMo = 3 and @weekday= 2 and @month = 1
set @holID = 2 -- mlk
else if @wkInMo = 3 and @weekday= 2 and @month = 2
set @holID = 3 -- President’s
else if @wkInMo = 4 and @weekday= 2 and @month = 5 and datepart(month,@dt+7) = 6
set @holID = 4 -- memorial on 4th mon, no 5th
else if @wkInMo = 5 and @weekday= 2 and @month = 5
set @holID = 4 -- memorial on 5th mon
else if @isWkEnd = 0 and (@month = 7 and @day = 4)
set @holID=5 -- July 4 on workday
else if @weekday= 6 and (@month = 7 and @day = 3)
set @holID=5 -- holiday on sat, change to fri
else if @weekday= 2 and (@month = 7 and @day = 5)
set @holID=5 -- holiday on sun, change to mon
else if @wkInMo = 1 and @weekday= 2 and @month = 9
set @holID = 6 -- Labor
else if @isWkEnd = 0 and (@month = 11 and @day = 11)
set @holID=7 -- Vets day on workday
else if @weekday= 6 and (@month = 11 and @day = 10)
set @holID=7 -- holiday on sat, change to fri
else if @weekday= 2 and (@month = 11 and @day = 12)
set @holID=7 -- holiday on sun, change to mon
else if @wkInMo = 4 and @weekday= 5 and @month = 11
set @holID = 8 -- thx
else if @holID = 8
set @holID = 9 -- dy after thx
else if @isWkEnd = 0 and (@month = 12 and @day = 25)
set @holID=10 -- xmas day on workday
else if @weekday= 6 and (@month = 12 and @day = 24)
set @holID=10 -- holiday on sat, change to fri
else if @weekday= 2 and (@month = 12 and @day = 26)
set @holID=10 -- holiday on sun, change to mon
else
set @holID = null
insert into tblDay select @dt,@weekday,@wkInMo,@isWkEnd,@holID,@workDayCount
if @isWkEnd=0 and @holID is null
set @workDayCount = @workDayCount + 1
set @dt = @dt + 1
if datepart( weekday, @Dt ) = @firstDwOfMo
set @wkInMo = @wkInMo + 1
end
END
J'ai aussi une table de fête, mais les vacances de chacun sont différentes :
holidayID holiday rule description
1 New Year's Day Jan. 1
2 Martin Luther King Day third Mon. in Jan.
3 Presidents' Day third Mon. in Feb.
4 Memorial Day last Mon. in May
5 Independence Day 4-Jul
6 Labor Day first Mon. in Sept
7 Veterans' Day Nov. 11
8 Thanksgiving fourth Thurs. in Nov.
9 Fri after Thanksgiving Friday after Thanksgiving
10 Christmas Day Dec. 25
HTH
