vwDates

A record set of calendar dates with dimensional attributes can often come in handy. Leveraging the utfNumbers function, such a record set is easily constructed. The view below will return every calendar date between 1 Jan 1900 and 31 Dec 2100 — a full two-hundred years. Of course, it is easily modified to return more (or fewer) records.

If your application is such that join performance is an issue, you can simply materialize the view as a table or index the view (which results in transparent materialization).

-- Create a record set of dates with dimensional attributes
CREATE VIEW dbo.vwDates
AS
SELECT
    Dates.CalendarDate
    , CalendarDay = CONVERT(TINYINT, DATEPART(DAY, Dates.CalendarDate))
    , WeekDayInt = CONVERT(TINYINT, DATEPART(WEEKDAY, Dates.CalendarDate))
    , NameDay = DATENAME(WEEKDAY, Dates.CalendarDate)
    , CalendarMonth = CONVERT(TINYINT, DATEPART(MONTH, Dates.CalendarDate))
    , NameMonth = DATENAME(MONTH, Dates.CalendarDate)
    , CalendarYear = CONVERT(SMALLINT, DATEPART(YEAR, Dates.CalendarDate))
FROM
    DB.dbo.utfNumbers(DATEDIFF(DAY, '1/1/1900', '1/1/2100')) AS Nums
    CROSS APPLY (
        SELECT CONVERT(DATE, DATEADD(DAY, Nums.n, '12/31/1899')) AS CalendarDate
    ) AS Dates
;

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