使用@ReportingEndingDate，请及时（@NumberOfPeriods）
1）将采用开始和结束日期范围 2）将执行不同的期间＆＃39;：季度，月份或年份 3）会做＆＃39; x＆＃39;期数 4）可以从开始日期开始并前进到结束 日期或从结束日期开始，然后返回到开始日期 日期。前者显然是经常使用的，但后者是 用于您想要选择结束日期并向后退的情况 ＆＃39; X＆＃39;期数。
有些情况： 1）
DECLARE @Start DATETIME = '2013-01-01 00:00:00'
,@End DATETIME = '2014-08-15 23:59:59'
,@Period TINYINT = 1 -- 1 = Quarter, 2 = Month, 3 = Year
,@NumerOfPeriods SMALLINT = 24
,@StartingDateIsOrigniationDate BIT = 1
SELECT * FROM udf_SplitDateRangeIntoPeriods(@Start, @End, @Period, @NumerOfPeriods, @StartingDateIsOrigniationDate)
1/1/2013 12:00:00 AM 3/31/2013 11:59:59 PM 4/1/2013 12:00:00 AM 6/30/2013 11:59:59 PM 2013年7月1日12:00:00 AM 9/30/2013 11:59:59 PM 10/1/2013 12:00:00 AM 12/31/2013 11:59:59 PM 1/1/2014 12:00:00 AM 3/31/2014 11:59:59 PM 4/1/2014 12:00:00 AM 6/30/2014 11:59:59 PM - 不再是最后的部分时期
2）
DECLARE @Start DATETIME = '2013-01-01 00:00:00'
,@End DATETIME = '2014-08-15 23:59:59'
,@Period TINYINT = 1 -- 1 = Quarter, 2 = Month, 3 = Year
,@NumerOfPeriods SMALLINT = 24
,@StartingDateIsOrigniationDate BIT = 0
SELECT * FROM udf_SplitDateRangeIntoPeriods(@Start, @End, @Period, @NumerOfPeriods, @StartingDateIsOrigniationDate)
6/1/2014 12:00:00 AM 8/15/2014 11:59:59 PM - 部分期间 3/1/2014 12:00:00 AM 5/31/2014 11:59:59 PM 12/1/2013 12:00:00 AM 2/28/2014 11:59:59 PM 2013年9月1日12:00:00 AM 11/30/2013 11:59:59 PM 6/1/2013 12:00:00 AM 8/31/2013 11:59:59 PM 3/1/2013 12:00:00 AM 5/31/2013 11:59:59 PM
/*
-- =============================================
Author: Daniel Kram
Create date: September 2014
Description: Returns a table with a date range
Modifications:
Example:
-- =============================================
*/
IF EXISTS (SELECT name
FROM
sysobjects
WHERE
name = 'udf_SplitDateRangeIntoPeriods'
AND type = 'TF'
)
DROP FUNCTION dbo.udf_SplitDateRangeIntoPeriods;
GO
SET QUOTED_IDENTIFIER, ANSI_NULLS ON
GO
CREATE FUNCTION dbo.udf_SplitDateRangeIntoPeriods
(
@StartingDate DATETIME,
@EndingDate DATETIME,
@PeriodType TINYINT = 0, -- 0 = use date-range only, 1 = quarter, 2 = month, 3 = year
@NumberOfPeriods SMALLINT = NULL,
@StartingDateIsFocus BIT = 1 -- 1 = Starting date is the origination point, 0 = ending date is the orignation point
)
RETURNS @DateResults TABLE
(FromDate DATETIME
,ToDate DATETIME
,MyRowNumber INT)
AS BEGIN
IF (@NumberOfPeriods IS NULL) OR (@NumberOfPeriods = 0)
SET @NumberOfPeriods = 99;
IF (@PeriodType = 0)
BEGIN
INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT @StartingDate, @EndingDate, 1
END
-- Quarters, working backwards from ending date
ELSE IF (@PeriodType = 1)
BEGIN
IF (@StartingDateIsFocus = 1)
BEGIN
WITH Quarters AS
(
SELECT @StartingDate AS 'FromDate'
,DATEADD(ss,-1,DATEADD(mm, DATEDIFF(m,0,@StartingDate)+3,0)) as 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT CAST(DATEADD(d, 1, EOMONTH(ToDate)) AS DATETIME) AS 'FromDate'
,DATEADD(ss,-1,DATEADD(dd,1,CAST(EOMONTH(DATEADD(MONTH,3,ToDate)) AS DATETIME))) as 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM Quarters
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM Quarters
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
ELSE IF (@StartingDateIsFocus = 0)
BEGIN
WITH Quarters AS
(
SELECT DATEADD(MONTH, DATEDIFF(MONTH, 0, DATEADD(MONTH,-2,DATEADD(day, -DATEPART(day, @EndingDate)+1, @EndingDate))), 0) as 'FromDate'
,@EndingDate AS 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT DATEADD(MONTH, DATEDIFF(MONTH, 0, DATEADD(MONTH,-3,DATEADD(day, -DATEPART(day, FromDate)+1, FromDate))), 0) as 'FromDate'
,DATEADD(ss,-1,DATEADD(mm, DATEDIFF(m,0,DATEADD(MONTH, -3, ToDate))+1,0)) AS 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM Quarters
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM Quarters
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
END
ELSE IF (@PeriodType = 2)
BEGIN
IF (@StartingDateIsFocus = 1)
BEGIN
WITH YearPeriod AS
(
SELECT @StartingDate AS 'FromDate'
,DATEADD(ss,-1,DATEADD(MONTH,1,@StartingDate)) as 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT DATEADD(ss,1,ToDate) as 'FromDate'
,DATEADD(ss,-1,DATEADD(mm, DATEDIFF(m,0,ToDate)+2,0)) as 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
ELSE IF (@StartingDateIsFocus = 0)
BEGIN
WITH YearPeriod AS
(
SELECT DATEADD(ss,1,DATEADD(MONTH,-1,@EndingDate)) as 'FromDate'
,@EndingDate AS 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT DATEADD(ss,1,DATEADD(MONTH,-1,FromDate)) as 'FromDate'
,DATEADD(MONTH,-1,ToDate) as 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
END
ELSE IF (@PeriodType = 3)
BEGIN
IF (@StartingDateIsFocus = 1)
BEGIN
WITH YearPeriod AS
(
SELECT @StartingDate AS 'FromDate'
,DATEADD(ss,-1,DATEADD(YEAR,1,@StartingDate)) as 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT DATEADD(ss,1,ToDate) as 'FromDate'
,DATEADD(YEAR,1,ToDate) as 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
ELSE IF (@StartingDateIsFocus = 0)
BEGIN
WITH YearPeriod AS
(
SELECT DATEADD(ss,1,DATEADD(YEAR,-1,@EndingDate)) as 'FromDate'
,@EndingDate AS 'ToDate'
,1 AS MyRowNumber
UNION ALL
SELECT DATEADD(ss,1,DATEADD(YEAR,-1,FromDate)) as 'FromDate'
,DATEADD(ss,-1,DATEADD(YEAR,-1,ToDate)) as 'ToDate'
,MyRowNumber + 1 AS MyRowNumber
FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
) INSERT INTO @DateResults (FromDate, ToDate, MyRowNumber) SELECT * FROM YearPeriod
WHERE ( (MyRowNumber <= @NumberOfPeriods)
OR (@NumberOfPeriods IS NULL)
)
AND FromDate >= @StartingDate
AND ToDate <= @EndingDate
AND MyRowNumber < 99
END
END
RETURN
END