TSQL Calculate week number of the month

Question

I want to calculate the week number of the month,I want to calculate the week number whether its odd or even week how can I get this in TSQL ? Thanks all!

Answer 1

This gives you the week of the date @dt within its month. There is a 2nd column that uses a CASE statement over the expression, to show either "Odd" or "Even"

declare @dt datetime
set @dt = GETDATE()

select
    WhichWeekOfMonth = datepart(wk, @dt)
                     - datepart(wk,dateadd(m, DATEDIFF(M, 0, @dt), 0)) + 1,
    case when (datepart(wk, @dt)
            - datepart(wk,dateadd(m, DATEDIFF(M, 0, @dt), 0)) + 1) % 2 = 1
         then 'Odd' else 'Even' end

Answer 2

It will give you week Number for Every month

declare @dates datetime
select @dates='2011-03-22'
SELECT datepart(dd,@dates), ceiling (cast(datepart(dd,@dates)as numeric(38,8))/7)