ASP.NET 修改数据有关问题

 protected void modify_Click(object sender, EventArgs e)        {            int id = Convert.ToInt32(Request.QueryString["id"]);            string title = this.newsTitle.Text;            string content = this.newsContent.Value;            string sql = string.Format(@"updata news set n_title = '{0}',n_title = '{1}' where n_id = {2}", title,content,id);            int num = db.NotQuery(sql);            if (num > 0)            {                Response.Redirect("NewsManage.aspx");            }        }

 //执行不是查询的语句        public int NotQuery(string s)        {            int num = 0;            try            {                myConnection.Open();                //string sql = string.Format(s);                OleDbCommand myCommand = new OleDbCommand(s, myConnection);                num = myCommand.ExecuteNonQuery();                return num;            }            catch (Exception e)            {                e.ToString();            }            finally            {                myConnection.Close();            }            return num;        }