Adding new column in exist table

            String sCon;
            sCon = "Connection String";

            System.Data.SqlClient.SqlConnection  cn = new System.Data.SqlClient.SqlConnection (sCon);
            System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand();

            cmd.CommandType = CommandType.Text;
            cmd.CommandText = " Alter Table Company Add ComapnyAddress  VarChar(50) ";
            cmd.Connection = cn;
            cn.Open();
            cmd.ExecuteNonQuery();