What is ISO_year in sql-server

Question

I am currently working on creating my first Data_warehouse using sql-server

I have a Date dimension i want to populate it using SSIS it ha

Answer 1

Here is a function for iso_year, the logic behind it is that the thursday of the week from the parameter date determine the year:

CREATE FUNCTION [dbo].[f_isoyear]
(
@p_date datetime
)
RETURNS int
as
BEGIN
  RETURN datepart(yy, dateadd(wk, datediff(d, 0, @p_date)/7, 3))
END