<script language="javascript" runat="server">
    //用 JavaScript 写服务器端连接数据库的代码示例
    var conn = new ActiveXObject("ADODB.Connection");
    conn.Open("Provider=SQLOLEDB.1; Data Source=localhost; User ID=sa; "
      +"Password=sa; Initial Catalog=Web_EIP_CF");

    var rs = new ActiveXObject("ADODB.Recordset");
    var sql="select count(*) as c from EP_COA";
    rs.open(sql, conn);
    var num=rs("c");
    document.write(num);

    rs.close(); rs = null; conn.close(); conn = null;
</script>

Javascript用udl文件连接数据库

var str="File Name=C:\\NTWEB\\AutoWeb3\\Database\\Project\\WEB_EIP_CF\\Flow_CF\\Flow_CF.udl";
   var conn = new ActiveXObject("ADODB.Connection");
   conn.ConnectionString=str;
   conn.Open();