This Sql Server script will create a function that returns all dates in a date range as a table.

CREATE FUNCTION dbo.DateTable (
@StartDate smalldatetime,
@EndDate smalldatetime)
RETURNS @DatesTable TABLE (DateCol smalldatetime)
AS
WHILE @StartDate < = @EndDate
BEGIN
INSERT INTO @DatesTable (DateCol)
VALUES (@StartDate)
SET @StartDate = DateAdd(dd,1,@StartDate)
END
RETURN
END
GO
GRANT SELECT ON dbo.DateTable TO PUBLIC
GO

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