DECLARE @start datetime, @end datetime

SET @start = '1/1/2008'
SET @end = '2/1/2009'

SELECT datediff(ww,@start,@end)
SELECT datepart("ww", dateadd("ww", datediff(ww,@start,@end), @start))

with DateCTE   as
(
    select cast('01/01/1998' as datetime) DateValue
    union all
    select DateValue + 1
    from    DateCTE   
    where   DateValue + 1 < '1/1/2016'
)


Select 
    cast(CAST(DateValue AS CHAR(11)) AS DateTime) AS [FullDate],
    DATEPART(wk, DateValue) AS WeekOfYear, 
    DATEPART(yy, DateValue) AS CalendarYear 
from   DateCTE
OPTION (MAXRECURSION 0)