/*******************************************************************************************************
** Name: dbo.GenerateDateDimension
** Desc: Takes a start date and returns all dates up to the current day as a Date Dimension table.
** Auth: Cliff Buckley (SQLSlayer.com)
** Parameters: @StartDate - The starting date for the date dimension table.
** Dependancies: None
** Notes:
** Date: 10.07.2009
** Example: SELECT * FROM dbo.GenerateDateDimension('1/1/2009')
*******************************************************************************
** Change History
*******************************************************************************
** Date: Author: Description:
** -------- -------- ---------------------------------------
**
********************************************************************************************************/
CREATE FUNCTION dbo.GenerateDateDimension
(
@StartDate datetime
)
RETURNS @DimDate TABLE(DateId int,YearNumber smallint, QuarterNumber tinyint, MonthText varchar(20)
,MonthNumber tinyint,DayNumberOfMonth tinyint, DayOfWeekText varchar(20)
,DayNumberOfYear smallint,SQLDate datetime)
AS
BEGIN
DECLARE @EndDate datetime

SET @EndDate = CAST(CONVERT(varchar(8),getdate(),112) as datetime)

WHILE @StartDate <= @EndDate
BEGIN
INSERT INTO @DimDate(DateId,YearNumber,QuarterNumber,MonthText,MonthNumber,DayNumberOfMonth,DayOfWeekText,DayNumberOfYear,SQLDate)
SELECT CAST(CONVERT(varchar(8),@StartDate,112) AS INT) AS DateId
,DATENAME(year,@StartDate) AS YearNumber
,DATENAME(quarter,@StartDate) AS QuarterNumber
,DATENAME(month,@StartDate) AS MonthText
,MONTH(@StartDate) AS MonthNumber
,DATENAME(day,@StartDate) AS DayOfMonthNumber
,DATENAME(weekday,@StartDate) AS DayOfWeekText
,DATENAME(dayofyear,@StartDate) AS DayNumberOfYear
,@StartDate AS SQLDate
SET @StartDate = DATEADD(d, 1, @StartDate)
END

RETURN;
END
GO

Unfortunately, the formatting is lost, but you get the idea.