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  • [MSSQL] Useful SQL Scripts

    Useful SQL scripts

    DECLARE @StartDate DATETIME
    DECLARE @EndDate DATETIME
    DECLARE @FiscalBeginMonth INT
    SELECT @StartDate = DATEADD(MONTH,-1,GETDATE()),@EndDate = GETDATE(),@FiscalBeginMonth = 7
    WITH 
        E00(N) AS (SELECT 1 UNION ALL SELECT 1),
        E02(N) AS (SELECT 1 FROM E00 a, E00 b),
        E04(N) AS (SELECT 1 FROM E02 a, E02 b),
        E08(N) AS (SELECT 1 FROM E04 a, E04 b),
        E16(N) AS (SELECT 1 FROM E08 a, E08 b),
        E32(N) AS (SELECT 1 FROM E16 a, E16 b),
    cteTally(N) AS (SELECT ROW_NUMBER() OVER (ORDER BY N) FROM E32),
            
    CalendarBase as (
    	SELECT
    		DateKey = n
    		, CalendarDate = DATEADD(day, n - 1, @StartDate )
    		, FiscalYearBegin = DATEADD(MONTH, DATEDIFF(MONTH, 0, DATEADD(DAY, n - 1, @StartDate )) - (12 + DATEPART(MONTH, DATEADD(day, n - 1, @StartDate )) - @FiscalBeginMonth) % 12, 0)
    	FROM cteTally
    	WHERE N <= DATEDIFF(day, @StartDate , @EndDate +1)
    )
    SELECT		DateKey
    			, IsoDate       =	CONVERT(char(8), CalendarDate, 112)
    			, CalendarDate
    			, CalendarYear  =	YEAR(CalendarDate)
    			, CalendarQuarter =	(DATEPART(QUARTER,CalendarDate) )
    			, CalendarMonth =	MONTH(CalendarDate)
    			, CalendarDay   =	DATEPART(DAY, CalendarDate)
    			, DayofWk       =	DATEPART(Dw, CalendarDate)
    			, CalendarWeekOfMonth = DATEDIFF(week, DATEADD(day,1, CalendarDate-DAY(CalendarDate) + 1) -1, CalendarDate) +1
    			, WeekofYr      =	DATEPART(WEEK, CalendarDate)
    			, DayofYr       =	DATEPART(DAYOFYEAR, CalendarDate)
    			, NameMonth     =	DATENAME(Month, CalendarDate)
    			, NameDay       =	DATENAME (Weekday,CalendarDate )
    			, FiscalYear    =	CASE	WHEN	MONTH(CalendarDate)  < @FiscalBeginMonth THEN  
    												YEAR(CalendarDate)
    										ELSE	YEAR(CalendarDate) + 1 
    								END
    			, FiscalMonth    =	DATEDIFF( MONTH, FiscalYearBegin, CalendarDate) + 1
    			, FiscalWeek     =	DATEDIFF( WEEK, FiscalYearBegin, CalendarDate) + 1
    			, FiscalDay      =	DATEDIFF( day, FiscalYearBegin, CalendarDate) + 1
    			, FirstDateOfWeek =	DATEADD(D, -DATEPART(Dw, CalendarDate)+2, CalendarDate)
    FROM CalendarBase

     

    Calendarbase

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  • 原文地址:https://www.cnblogs.com/kkun/p/3408919.html
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