--PDV_VD_DEV_EST_PROD_IMP.CD_MT_DEV_VD
IF NOT EXISTS (SELECT * FROM    sys.columns WHERE name = 'CD_MT_DEV_VD' AND object_id = OBJECT_ID(N'[dbo].[PDV_VD_DEV_EST_PROD_IMP]'))
   ALTER TABLE [DBO].[PDV_VD_DEV_EST_PROD_IMP] ADD CD_MT_DEV_VD [INT] DEFAULT(0)