统计阅读次数的有关问题

统计阅读次数的问题
如何实现如新闻被阅读了多少，论坛贴子被阅读了多少的功能？不能是刷新一次就加一次的计数方式，另外不要对数据库造成太大压力，之前好像听说过可以累加到多少后才写数据库的。这些怎么实现？

[解决办法]

C# code

 public string hits_ip;    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            if (Request.Cookies["cip"]==null)            {                if (Request.ServerVariables["HTTP_VIA"] != null)                {                    hits_ip = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString().Split(',')[0].Trim();                }                else                {                    hits_ip = Request.UserHostAddress;                }                Response.Cookies.Add(new HttpCookie("cip", hits_ip));                Response.Cookies["cip"].Expires = DateTime.Now.AddDays(1);                string str = System.Web.HttpContext.Current.Server.MapPath(System.Configuration.ConfigurationSettings.AppSettings["dbPath"]);                OleDbConnection myConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + str);                myConn.Open();                OleDbCommand myCommand = new OleDbCommand("UPDATE [table] SET Hits=Hits+1 WHERE NewsId='" + Request.QueryString["id"] + "'", myConn);                myCommand.ExecuteNonQuery();                myConn.Close();            }        }    }