/*MONTH(DATEADD(MONTH, - 1, GETDATE())) */
CREATE VIEW dbo.AYLIK_ORTALAMA_SATIS
AS
SELECT        STOCKREF, SUM(AMOUNT) / 12 AS AMNT
FROM            dbo.LG_011_08_STLINE
WHERE        (CANCELLED = 0) AND (TRCODE = 8) AND (LINETYPE = 0) AND (DATE_ < DATEADD(s, - 1, DATEADD(mm, DATEDIFF(m, 0, GETDATE()), 0)))
GROUP BY STOCKREF