SET ANSI_NULLS OFF GO SET QUOTED_IDENTIFIER OFF GO CREATE FUNCTION dbo.fn_JaarBegin ( @Mydate datetime) --@Tabel as VARCHAR(30) RETURNS varchar(20) AS BEGIN DECLARE @X AS varchar(20) Declare @day as varchar(20) Declare @Maand as varchar(20) Declare @Jaar as varchar(20) Declare @y as Datetime Set @Y = DATEADD(Year,-1,@MyDate) DECLARE @Year int, @Week int; --SELECT @Year = 2007; Set @day = datepart(day,@y) Set @maand = datepart(month,@y) Set @jaar = datepart(Year,@y) SELECT @x = @jaar RETURN(@x) END GO