SQL Server 中的日历表

Question

我正在尝试创建一个包含以下列和要求的日历表。我之前制作了这个日历表，但我无法将其更新到我当前的要求。

1. 日期
2. 周号
3. 周名称
4. 周开始日期
5. 周结束日期
6. 月
7. 月份开始日期
8. 月结束日期
9. 列表项
10. 季度
11. 季度开始日期
12. 季度结束日期
13. 年份

要求

• --星期从星期日开始到星期六结束
• --周名称格式应为 31Aug--to--06Sep
• --月份应该是周月的结束日期
• --日历应该从2015-08-31开始
• --财政年度应为 FY16-17 格式
• --年份应从 6 月 1 日至 5 月 31 日开始
• --季度应该是上述日期的 3 个月
• --Week No 应该是增量数字，不应在一年完成后重置。

查询

DECLARE @StartDate  date = '20150831'
DECLARE @CutoffDate date = '20300101'

;WITH seq(n) AS 
(
  SELECT 0 UNION ALL SELECT n + 1 FROM seq
  WHERE n < DATEDIFF(DAY, @StartDate, @CutoffDate)
),
d(d) AS 
(
  SELECT DATEADD(DAY, n, @StartDate) FROM seq
),
src AS      /*SOURCE TABLE WITH OBJECT DEFINITION*/
(
  SELECT
    TheDate         = CONVERT(date, d),
    TheDay          = DATEPART(DAY,       d),
    TheDayName      = DATENAME(WEEKDAY,   d),
    TheWeek         = DATEPART(WEEK,      d),
    TheDayOfWeek    = DATEPART(WEEKDAY,   d),
    TheMonth        = DATEPART(MONTH,     d),
    TheMonthName    = DATENAME(MONTH,     d),
    TheQuarter      = Concat('Q',DATEPART(Quarter,   d)),
    Financial_Year  = DATEPART(YEAR,      d),
    Financial_Quarter=Datepart(QUARTER,d),
    TheYear         = DATEPART(YEAR,      d),
    TheFirstOfMonth = DATEFROMPARTS(YEAR(d), MONTH(d), 1),
    TheFirstOfFYear   = DATEFROMPARTS(YEAR(d), 4, 1),
    TheFirstOfYear   = DATEFROMPARTS(YEAR(d), 1, 1),
    TheLastOfYear   = DATEFROMPARTS(YEAR(d), 12, 31),
    TheDayOfYear    = DATEPART(DAYOFYEAR, d)
  FROM d
),
Dimension AS
(
  SELECT
    TheDate, 
    TheDay,
    TheDayName,
    TheDayOfWeek,
   -- TheDayOfWeekInMonth = CONVERT(tinyint, ROW_NUMBER() OVER 
    --                        (PARTITION BY TheFirstOfMonth, TheDayOfWeek ORDER BY TheDate)),
    TheDayOfYear,
    TheWeek,
    TheFirstOfWeek      = DATEADD(DAY, 1 - TheDayOfWeek, TheDate),
    TheLastOfWeek       = DATEADD(DAY, 6, DATEADD(DAY, 1 - TheDayOfWeek, TheDate)),
    
    TheMonth,
    TheMonthName,
    TheFirstOfMonth,
    TheLastOfMonth      = MAX(TheDate) OVER (PARTITION BY TheYear, TheMonth),
    TheFirstOfNextMonth = DATEADD(MONTH, 1, TheFirstOfMonth),
    TheLastOfNextMonth  = DATEADD(DAY, -1, DATEADD(MONTH, 2, TheFirstOfMonth)),
    TheQuarter,
    TheFirstOfQuarter   = MIN(TheDate) OVER (PARTITION BY TheYear, TheQuarter),
    TheLastOfQuarter    = MAX(TheDate) OVER (PARTITION BY TheYear, TheQuarter),
    TheYear,
    TheFirstOfYear      = DATEFROMPARTS(TheYear, 1,  1),
    TheFirstOfFYear     = DATEFROMPARTS(TheYear, 4,  1),
    TheLastOfYear,
    MMYYYY              = CONVERT(char(2), CONVERT(char(8), TheDate, 101))
                          + CONVERT(char(4), TheYear),
                            

    Financial_Quarter   = Datepart(Quarter,DATEADD(MONTH, -3, TheFirstOfMonth)), /*Starting Financial Quarter from April*/
    Financial_Year      =CASE
                            WHEN Financial_Quarter = 1 THEN DATEPART(Year,Dateadd(Year,-1,TheFirstofYear)) ELSE THEYEAR END
  FROM src
)
SELECT * FROM Dimension
  ORDER BY TheDate
  OPTION (MAXRECURSION 0);

如何根据星期转换月份，例如一个月从星期日开始（星期也从星期日开始）日期为 01-MM-YYYY，并且该月应始终在星期六结束，通常一个月有 4 周。该月不能以前一周或前一个月的日期开始或结束，它应该始终只有整个星期，从星期日开始到星期六结束。

Answer 1

正如我在 cmets 中提到的，您似乎只需要一个窗口化的COUNT。这是一个猜测，基于缺乏预期的结果，但这应该会让你走上正确的道路。我也使用与您的colleague's question 相同的基于集合的方法：

DECLARE @StartDate  date = '20150831'
DECLARE @CutoffDate date = '20300101';
/*
; is a terminator, not a "beginingator". It goes at the end of ALL your statements,
not at the start of statements that require the PREVIOUS statement to be properly terminated.
*/
WITH N AS 
    (SELECT N
     FROM (VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL)) N(N)),
Tally AS
    (SELECT 0 AS I
     UNION ALL
     SELECT TOP (DATEDIFF(DAY, @StartDate, @CutoffDate))
            ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) AS I
     FROM N N1,N N2,N N3, N N4), --Up to 1000 rows. Add more cross joins for more rows
D AS
    (SELECT DATEADD(DAY, T.I, @StartDate) AS d
     FROM Tally T),
Src AS /*SOURCE TABLE WITH OBJECT DEFINITION*/
    (SELECT CONVERT(date, d) AS TheDate,
            DATEPART(DAY, d) AS TheDay,
            DATENAME(WEEKDAY, d) AS TheDayName,
            DATEPART(WEEK, d) AS TheWeek,
            DATEPART(WEEKDAY, d) AS TheDayOfWeek,
            DATEPART(MONTH, d) AS TheMonth,
            DATENAME(MONTH, d) AS TheMonthName,
            CONCAT('Q', DATEPART(QUARTER, d)) AS TheQuarter,
            DATEPART(YEAR, d) AS Financial_Year,
            DATEPART(QUARTER, d) AS Financial_Quarter,
            DATEPART(YEAR, d) AS TheYear,
            DATEFROMPARTS(YEAR(d), MONTH(d), 1) AS TheFirstOfMonth,
            DATEFROMPARTS(YEAR(d), 4, 1) AS TheFirstOfFYear,
            DATEFROMPARTS(YEAR(d), 1, 1) AS TheFirstOfYear,
            DATEFROMPARTS(YEAR(d), 12, 31) AS TheLastOfYear,
            DATEPART(DAYOFYEAR, d) AS TheDayOfYear
     FROM d),
Dimension AS
    (SELECT TheDate,
            TheDay,
            TheDayName,
            TheDayOfWeek,
            CONVERT(tinyint, ROW_NUMBER() OVER (PARTITION BY TheFirstOfMonth, TheDayOfWeek ORDER BY TheDate)) AS TheDayOfWeekInMonth,
            TheDayOfYear,
            TheWeek,
            DATEADD(DAY, 1 - TheDayOfWeek, TheDate) AS TheFirstOfWeek,
            DATEADD(DAY, 6, DATEADD(DAY, 1 - TheDayOfWeek, TheDate)) AS TheLastOfWeek,
            CONVERT(tinyint, DENSE_RANK() OVER (PARTITION BY TheYear, TheMonth ORDER BY TheWeek)) AS TheWeekOfMonth,
            TheMonth,
            TheMonthName,
            TheFirstOfMonth,
            MAX(TheDate) OVER (PARTITION BY TheYear, TheMonth) AS TheLastOfMonth,
            DATEADD(MONTH, 1, TheFirstOfMonth) AS TheFirstOfNextMonth,
            DATEADD(DAY, -1, DATEADD(MONTH, 2, TheFirstOfMonth)) AS TheLastOfNextMonth,
            TheQuarter,
            MIN(TheDate) OVER (PARTITION BY TheYear, TheQuarter) AS TheFirstOfQuarter,
            MAX(TheDate) OVER (PARTITION BY TheYear, TheQuarter) AS TheLastOfQuarter,
            TheYear,
            DATEFROMPARTS(TheYear, 1, 1) AS TheFirstOfYear,
            DATEFROMPARTS(TheYear, 4, 1) AS TheFirstOfFYear,
            TheLastOfYear,
            CONVERT(char(2), CONVERT(char(8), TheDate, 101)) + CONVERT(char(4), TheYear) AS MMYYYY,
            DATEPART(QUARTER, DATEADD(MONTH, -3, TheFirstOfMonth)) AS Financial_Quarter, /*Starting Financial Quarter from April*/
            CASE
                 WHEN Financial_Quarter = 1 THEN DATEPART(YEAR, DATEADD(YEAR, -1, TheFirstOfYear))
                 ELSE TheYear
            END AS Financial_Year,
            COUNT(CASE WHEN DATENAME(WEEKDAY,TheDate) = 'Sunday' THEN 1 END) OVER (PARTITION BY YEAR(TheDate), MONTH(TheMonth) ORDER BY TheDate) AS TheWeekNo
     FROM src)
SELECT *
FROM Dimension
ORDER BY TheDate;