IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'YadAvari' AND COLUMN_NAME = 'Title') begin print 'Ok'; end else begin alter table YadAvari add Title nvarchar(200) end go IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'Yadavari' AND COLUMN_NAME = 'TedadRooz') begin alter table Yadavari Drop Column TedadRooz end else begin print 'Ok' end go -- select * from YadAvari update YadAvari set TarikhSarResid = Tarikh where TarikhSarResid = 0