SQL Server灵活的日期函数和日历表
我们使用日历表共享一些最便携的功能，以存储和计算银行假期和周末以及设置重复频率。
我们之前从事的大部分工作都涉及日期，年龄和其他各种信息。像计算年龄这样的事情并不像他们想象的那么简单。我们之前写过一些文章，但是现在这些文章已被一些更灵活的功能所取代，以减少所需的功能数量。
在本文中，我们将建立可重复使用的日历表和银行假日表，然后进行填充。各种功能将作为单独的文章编写，然后您可以在其中获得更多信息。
我们倾向于使用具有所有功能的共享“实用程序”数据库，以减少变更控制需求和一致的数据。
如果您拥有共享数据库，或者知道要在哪里存储这些功能，则可以随意使用，但是此处的所有代码都设计为在SQL Server 2016中的单个脚本中运行。
注意！ -在SSMS中创建数据库可能会更容易
小费！ -将选项设置为简单以避免日志文件膨胀，并且数据不太可能对业务至关重要。
CREATE DATABASE [Utilities] CONTAINMENT = NONE ON PRIMARY ( NAME = N'Utilities',FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL13.SQLSERVER13\MSSQL\DATA\Utilities.mdf' , SIZE = 8192KB , FILEGROWTH = 65536KB) LOG ON ( NAME = N'Utilities_log',FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL13.SQLSERVER13\MSSQL\DATA\Utilities_log.ldf' , SIZE = 8192KB , FILEGROWTH = 65536KB)GO为了简化管理，我们创建了一个称为日期的架构，并将所有相关信息存储在其中。在这种意义上，可以将模式视为相关对象的容器或名称空间。
小费！ -在批处理SQL语句中创建模式时，请将其包装到sp_executesql语句中，以避免系统抱怨它是批处理中的唯一语句。如果可能存在，则将其包装在try块中以允许代码运行。
USE UtilitiesGOSET NOCOUNT ON;BEGIN TRYEXEC sp_executesql N'CREATE SCHEMA Dates'END TRY BEGIN CATCH END CATCH;GOBEGIN TRYEXEC sp_executesql N'CREATE SCHEMA Test'END TRY BEGIN CATCH END CATCH;GO有几个共享功能将进一步使用，因此我们将提供代码和链接，并在每页上进行说明。有几件事要注意：
标准DateDiff年的计算纯粹是年-年，因此要计算年龄，您需要检查该日期是否更高。如果需要增加一天的时间，我们的GetLeapYear函数是最明智的解决方法。
如果您不使用新的DateFromParts函数，则复活节日期可能会失败，因为缺少日期填充。
CREATE FUNCTION Dates.GetLeapYear(@Date DATETIME2) RETURNS BIT AS BEGINDECLARE @Ret BIT=(CASE WHEN DATEPART(YEAR,@Date)%4<>0 OR (DATEPART(YEAR,@Date)%100=0 AND DATEPART(YEAR,@Date)%400<>0) THEN 0 ELSE 1 END)RETURN @RetENDGOCREATE FUNCTION Dates.GetAge(@Date DATETIME2,@Until DATETIME2) RETURNS INT AS BEGINIF @Until IS NULL SET @Until=CONVERT(DATE,GETDATE())DECLARE @Age INT=DATEDIFF(YEAR,@Date,@Until)+(CASE WHEN DATEPART(DAYOFYEAR,@Date)>(DATEPART(DAYOFYEAR,@Until)+(CASE WHEN dbo.GetLeapYear(@Until)=1 AND DATEPART(DAYOFYEAR,@Until)>59 THEN -1 ELSE 0 END))THEN -1 ELSE 0 END)RETURN @AgeENDGOCREATE FUNCTION Dates.DatePad(@PadValue NVARCHAR(100),@PadLen INT) RETURNS NVARCHAR(4) AS BEGINRETURN ISNULL(REPLICATE('0',@PadLen-LEN(@PadValue))+@PadValue,LEFT(@PadValue,@PadLen))ENDGOCREATE FUNCTION Dates.DateFromParts(@Year SMALLINT,@Month SMALLINT,@Day SMALLINT) RETURNS DATETIME2 AS BEGINDECLARE @Date DATETIME2=Dates.DatePad(@Year,4)+'-'+Dates.DatePad(@Month,2)+'-'+Dates.DatePad(@Day,2)RETURN @DateENDGOCREATE FUNCTION Dates.GetEasterDate(@Year INT) RETURNS DATETIME2 AS BEGIN/*Calculate date of easter based on Year passed - adjusted from Wikipedia*/Declare @GregorianEaster DATETIME2Declare @a INT, @b INT, @c INT, @d INT, @e INT, @f INT, @g INT, @h INT, @i INT, @k INT, @L INT, @m INT, @Month INT, @Day INTSET @a = @Year % 19SET @b = floor(@Year/ 100)SET @c = @Year % 100SET @d = floor(@b/ 4)SET @e = @b % 4SET @f = floor((@b+ 8) / 25)SET @g = floor((@b- @f + 1)/3)SET @h = (19*@a+ @b - @d - @g + 15) % 30SET @i = floor(@c/ 4)SET @k = @c % 4SET @L = (32 + 2*@e + 2*@i- @h - @k) % 7SET @m = floor((@a+ 11*@h + 22*@L)/ 451)SET @month = floor((@h+ @L - 7*@m + 114) / 31)SET @day = (@h + @L - 7*@m + 114) % 31 + 1SET @GregorianEaster = Dates.DateFromParts(@Year,@Month,@Day)RETURN @GregorianEaster ENDGO对于计划和重复发生，我们使用自己的计划表。这使我们能够计算出应多久重复一次。
CREATE TABLE Dates.CalendarFrequency(FrequencyID NVARCHAR(2),FrequencyName NVARCHAR(100),FrequencyOrder INT)GOINSERT INTO Dates.CalendarFrequencySELECT '','Once',0 UNIONSELECT '7','Weekly',1 UNIONSELECT '14','Fortnightly',2 UNIONSELECT '32','Monthly (Same Day 1st,15th,28th etc)',3 UNIONSELECT '1','Monthly (First Monday,Wednesday etc)',4 UNIONSELECT '2','Monthly (Second Monday,Wednesday etc)',5 UNIONSELECT '3','Monthly (Third Monday,Wednesday etc)',6 UNIONSELECT '4','Monthly (Fourth Monday,Wednesday etc)',10 UNIONSELECT '-1','Monthly (Last Monday,Wednesday etc)',7 UNIONSELECT '-2','Monthly (Second Last Monday,Wednesday etc)',8 UNIONSELECT '-3','Monthly (Third Last Monday,Wednesday etc)',9 UNIONSELECT '-4','Monthly (Fourth Last Monday,Wednesday etc)',11ORDER BY 3GO我们的日历表设置为可以在DATETIME2范围内的任何时间段运行。在一般情况下，下面的代码将为您提供一个涵盖大多数情况的范围。
CalendarCA和CalendarCD是每个月递增和递减的星期数，用于与我们上面的频率表进行交叉引用。
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)ENDGO我们将假期表设计为尽可能灵活，并通过添加日历功能列来允许存储不同的选项。在下面，我们交叉引用了已创建的日历表，分别存储了英格兰和威尔士，苏格兰和北爱尔兰的假日。
从理论上讲，您可以根据需要选择多种方案。
CREATE 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/*Scotish Holidays*/INSERT INTO Dates.CalendarHolidaysSELECT CalendarDate,1,'New Years Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=1AND DATEPART(DAY,CalendarDate)=1 UNION --New Years DaySELECT CalendarDate,1,'2nd' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=1 AND DATEPART(DAY,CalendarDate)=2 UNION --New Years DaySELECT CalendarDate,1,'Good Friday' FROM Dates.Calendar WHERE CalendarDate=DATEADD(DAY,-2,Dates.GetEasterDate(DATEPART(YEAR,CalendarDate)))UNION--Good FridaySELECT CalendarDate,1,'May Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=5 AND WeekDayID=2 AND (CalendarCA=1 OR CalendarCD=1)UNION--May HolidaysSELECT CalendarDate,1,'August Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=8 AND WeekDayID=2 AND (CalendarCA=1) UNION--August HolidaysSELECT CalendarDate,1,'St Andrews' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=11 AND DATEPART(DAY,CalendarDate)=30 UNION --St AndrewsSELECT CalendarDate,1,'Christmas Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=25 UNION --Christmas DaySELECT CalendarDate,1,'Boxing Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=26 --Boxing DayGO/*Northern Irish Holidays*/INSERT INTO Dates.CalendarHolidaysSELECT CalendarDate,2,'New Years Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=1 AND DATEPART(DAY,CalendarDate)=1 UNION --New Years DaySELECT CalendarDate,2,'Good Friday' FROM Dates.Calendar WHERE CalendarDate=DATEADD(DAY,-2,Dates.GetEasterDate(DATEPART(YEAR,CalendarDate))) UNION--Good FridaySELECT CalendarDate,2,'Easter Monday' FROM Dates.Calendar WHERE CalendarDate=DATEADD(DAY,1,Dates.GetEasterDate(DATEPART(YEAR,CalendarDate))) UNION--Easter MondaySELECT CalendarDate,2,'May Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=5 AND WeekDayID=2 AND (CalendarCA=1 OR CalendarCD=1)UNION--May HolidaysSELECT CalendarDate,2,'Battle of the Boyne' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=7 AND DATEPART(DAY,CalendarDate)=12 UNION --Battle of the BoyneSELECT CalendarDate,2,'August Holidays' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=8 AND WeekDayID=2 AND (CalendarCA=1) UNION--August HolidaysSELECT CalendarDate,2,'Christmas Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=25 UNION --Christmas DaySELECT CalendarDate,2,'Boxing Day' FROM Dates.Calendar WHERE DATEPART(MONTH,CalendarDate)=12 AND DATEPART(DAY,CalendarDate)=26 --Boxing DayGO使用了三种功能，以各种方式将它们组合在一起，并且所有选项都非常相似。
- GetDateAdjusted取决于日历功能，以及是否要包括假日和周末，将日期前后移动设定的天数。
- GetDaysAdjusted会计算两个日期之间的天数，具体取决于日历功能，以及是否要包括假日和周末。日期可以包含在内或仅包含在内。
- GetMonthAdjusted会计算一个月中的天数，具体取决于日历功能，以及是否要包括假日和周末。日期可以包含在内或仅包含在内。
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 ENDENDRETURN @DateEND GO
CREATE FUNCTION Dates.GetDaysAdjusted(@DateFrom DATETIME2,@CalendarFunction INT,@DateTo AS DATETIME2,@AdjustMode BIT,@AdjustWeekEnds BIT,@AdjustHolidays BIT) RETURNS INT AS BEGIN/*@AdjustMode 0=Count whole days only,1=Any day counts as 1*/IF @DateFrom>@DateTo BEGINDECLARE @T DATETIME2=@DateTo,@F DATETIME2=@DateFromSELECT @DateFrom=@T,@DateTo=@FENDDECLARE @Count AS INT=0,@DateAs DATETIME2=@DateFromWHILE @Date < @DateTo BEGINIF ((DATEPART(WEEKDAY,@Date)IN (1,7)AND @AdjustWeekEnds=1)OREXISTS (SELECT * FROM Dates.CalendarHolidays WHERE CalendarDate=@Date AND CalendarFunction=@CalendarFunctionAND @AdjustHolidays=1))BEGINSELECT @Count = @Count + 1ENDSELECT @Date=DATEADD(DAY,1,@Date)ENDRETURN (DATEDIFF(DAY,@DateFrom,@DateTo)-(@Count))+@AdjustModeENDGOCREATE FUNCTION Dates.GetMonthAdjusted(@Month As DATETIME2,@CalendarFunction INT,@AdjustMode BIT,@AdjustWeekEnds BIT,@AdjustHolidays BIT)RETURNS INT AS BEGINDECLARE @StartDate DATETIME2=CONVERT(DATE,DATEADD(DAY,1-DAY(@Month),@Month))DECLARE @EndDate DATETIME2=DATEADD(DAY,-1,DATEADD(MONTH,1,@StartDate)),@Count AS INT=0,@Date As DATETIME2=@StartDateWHILE @Date < @EndDateBEGINIF ((DATEPART(WEEKDAY,@Date) IN(1,7) AND @AdjustWeekEnds=1)OREXISTS (SELECT * FROM Dates.CalendarHolidays WHERE CalendarDate=@Date AND CalendarFunction=@CalendarFunction AND @AdjustHolidays=1))BEGINSELECT @Count = @Count + 1ENDSET @Date=DATEADD(DAY, 1,@Date)ENDRETURN (DATEDIFF(DAY,@StartDate,@EndDate)-(@Count))+@AdjustModeEND虽然可以将联接添加到select语句中，但我们发现在另一个函数中更易于引用。可以将两个日期，频率以及每月和每周的上升和下降数字相加，以检查相关日期是否匹配。
CREATE FUNCTION Dates.DateJoin(@CalendarDate DATETIME,@CrossoverDate DATETIME,@Frequency INT,@WeekAsc INT,@WeekDesc INT) RETURNS BIT AS BEGINDECLARE @J BIT=0/*Once*/IF @CrossoverDate=@CalendarDate SET @J=1/*Weekly/Fornightly*/IF @J=0 AND @Frequency IN (7,14) BEGINIF DATEPART(WEEKDAY,@CrossoverDate)=DATEPART(WEEKDAY,@CalendarDate) AND DATEDIFF(DAY,@CrossoverDate,@CalendarDate)%@Frequency=0SET @J=1END/*Monthly*/IF @J=0 AND @Frequency IN (32) BEGINIF (DATEPART(DAY,@CalendarDate)=DATEPART(DAY,@CrossoverDate)) OR (DATEPART(MONTH,DATEADD(DAY,1,@CalendarDate))<>DATEPART(MONTH,@CalendarDate)ANDDATEPART(MONTH,DATEADD(DAY,1,DATEADD(MONTH,DATEDIFF(MONTH,@CrossoverDate,@CalendarDate),@CrossoverDate)))<>DATEPART(MONTH,DATEADD(MONTH,DATEDIFF(MONTH,@CrossoverDate,@CalendarDate),@CrossoverDate)))SET @J=1END/*First/Second/Third/Fourth*/IF @J=0 AND @Frequency IN (1,2,3,4)IF (DATEPART(WEEKDAY,@CrossoverDate)=DATEPART(WEEKDAY,@CalendarDate) AND @WeekAsc=@Frequency) SET @J=1/*First/Second/Third/Fourth Last*/IF @J=0 AND @Frequency IN (-1,-2,-3,-4)IF (DATEPART(WEEKDAY,@CrossoverDate)=DATEPART(WEEKDAY,@CalendarDate) AND @WeekDesc=(-@Frequency)) SET @J=1RETURN @JENDGO现在，我们可以通过生成伪调度表来测试此数据。
在我们的示例中，创建一个要在2017年1月1日发布的报告，并在每个月的第一个月重复执行所有可能的日期操作。
单独查看2018年1月1日，周末和银行假期的行为可能会将日期范围更改为从29/12/2017到02/01/2018的任何日期。
CREATE TABLE Test.Schedule(ReportID INT,ReportName NVARCHAR(100),ReportStartDate DATETIME2,ReportFrequency INT,ReportAdjustBehaviour BIT,ReportAdjustWeekend BIT,ReportAdjustHoliday BIT,ProducedBy NVARCHAR(100))GOINSERT INTO Test.Schedule SELECT 1,'Schedule Before - Weekends=0,Holidays=0','2017-01-01',32,1,0,0,''INSERT INTO Test.Schedule SELECT 1,'Schedule Before - Weekends=1,Holidays=0','2017-01-01',32,1,1,0,''INSERT INTO Test.Schedule SELECT 1,'Schedule Before - Weekends=0,Holidays=1','2017-01-01',32,1,0,1,''INSERT INTO Test.Schedule SELECT 1,'Schedule Before - Weekends=1,Holidays=1','2017-01-01',32,1,1,1,''INSERT INTO Test.Schedule SELECT 1,'Schedule After - Weekends=0,Holidays=0','2017-01-01',32,0,0,0,''INSERT INTO Test.Schedule SELECT 1,'Schedule After - Weekends=1,Holidays=0','2017-01-01',32,0,1,0,''INSERT INTO Test.Schedule SELECT 1,'Schedule After - Weekends=0,Holidays=1','2017-01-01',32,0,0,1,''INSERT INTO Test.Schedule SELECT 1,'Schedule After - Weekends=1,Holidays=1','2017-01-01',32,0,1,1,''GOSELECT (case DATEPART(weekday,DateAdjusted) 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) DayAdjusted,DateAdjusted,WeekDayName,CalendarDate,ReportName,FrequencyNameFROM (SELECT Dates.GetDateAdjusted(CalendarDate,0,0,ReportAdjustBehaviour,ReportAdjustWeekend,ReportAdjustHoliday) DateAdjusted,c.CalendarDate,WeekDayName,s.*,f.FrequencyNameFROM (SELECT * FROM Dates.Calendar WHERE CalendarDate BETWEEN '2018-01-01' AND '2018-12-31') cINNER JOIN Test.Schedule s ON (CalendarDate>=ReportStartDate --AND CalendarDate>GETDATE()) AND (Dates.DateJoin(CalendarDate,ReportStartDate,ReportFrequency,CalendarCA,CalendarCD)=1)INNER JOIN Dates.CalendarFrequency f ON f.FrequencyID=ReportFrequency) xORDER BY CalendarDate,DateAdjusted,ReportName| DayAdjusted | DateAdjusted | WeekDayName | CalenderDate | ReportName | FrequencyName |
| Friday | 29/12/2017 | Monday | 01/01/2018 | Schedule Before - Weekends=1,Holidays=1 | Monthly (Same Day 1st,15th,28th etc) |
| Sunday | 31/12/2017 | Monday | 01/01/2018 | Schedule Before - Weekends=0,Holidays=1 | Monthly (Same Day 1st,15th,28th etc) |
| Monday | 01/01/2018 | Monday | 01/01/2018 | Schedule After - Weekends=0,Holidays=0 | Monthly (Same Day 1st,15th,28th etc) |
| Monday | 01/01/2018 | Monday | 01/01/2018 | Schedule After - Weekends=1,Holidays=0 | Monthly (Same Day 1st,15th,28th etc) |
| Monday | 01/01/2018 | Monday | 01/01/2018 | Schedule Before - Weekends=0,Holidays=0 | Monthly (Same Day 1st,15th,28th etc) |
| Monday | 01/01/2018 | Monday | 01/01/2018 | Schedule Before - Weekends=1,Holidays=0 | Monthly (Same Day 1st,15th,28th etc) |
| Tuesday | 02/01/2018 | Monday | 01/01/2018 | Schedule After - Weekends=0,Holidays=1 | Monthly (Same Day 1st,15th,28th etc) |
| Tuesday | 02/01/2018 | Monday | 01/01/2018 | Schedule After - Weekends=1,Holidays=1 | Monthly (Same Day 1st,15th,28th etc) |
