Getting week number of date in SQL

Question

Is there a way to get the week number of a date with SQL that is database independent?

For example to get the month of a date I use:

SELECT EXTRACT(MONTH         


        

Answer 1

select (DATEPART(yyyy , CAST(GETDATE() AS datetime)) * 100 + 
        DATEPART(ww , CAST(GETDATE() AS datetime))) as week