IF not EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'BargehDetail' AND COLUMN_NAME = 'Dom_ID_Noe') begin alter table BargehDetail Add Dom_ID_Noe int not null default 0 end go update BargehDetail set Dom_ID_Noe = 666 where IsKala = 1 and Dom_ID_Noe = 0 go update BargehDetail set Dom_ID_Noe = 667 where IsKala = 0 and Dom_ID_Noe = 0