Week calculation from a specific period

Question

suppose the fiscal year is starting from July/1st to June/30th.

I have to calculate the week no. accordingly in SQL Server 2005.

Please Suggest!

Many Tha

Answer 1

Without the need of creating a table. Just replace the @date with your column date name

declare @date datetime
set     @date = '12/8/2016 00:00:00'

select  case when datepart(month,@date) > 6 then 

            case when CEILING(datediff(day,'6/30/' + cast(datepart(year,@date) as nvarchar(4)),@date) / 7.0) > 52
            then 52 else CEILING(datediff(day,'6/30/' + cast(datepart(year,@date) as nvarchar(4)),@date) / 7.0) end

        else
            case when CEILING(datediff(day,'6/30/' + cast(datepart(year,@date)-1 as nvarchar(4)),@date) / 7.0) > 52
            then 52 else CEILING(datediff(day,'6/30/' + cast(datepart(year,@date)-1 as nvarchar(4)),@date) / 7.0) end
        end WorkWeek

Compute Week number based on Fiscal Year