1.新的索引引擎更快的执行效率
   下面这段代码在2003中需要157秒，在2005中只要11秒就可以完成：

DataSet ds = new DataSet();

            ds.Tables.Add("BigTable");
            ds.Tables[0].Columns.Add("ID", Type.GetType("System.Int32"));
            ds.Tables[0].Columns["ID"].Unique = true;
            ds.Tables[0].Columns.Add("Value", Type.GetType("System.Int32"));

            Cursor.Current = Cursors.WaitCursor;

            DateTime datBegin = DateTime.Now;

            Random rand = new Random();
            int i, intValue;
            DataRow dr;

            for (i = 1; i <= 500000; i++)
            {
                try
                {
                    intValue = rand.Next();

                    dr = ds.Tables[0].NewRow();

                    dr["ID"] = intValue;
                    dr["Value"] = intValue;

                    ds.Tables[0].Rows.Add(dr);
                }
                catch { }
            }

            Cursor.Current = Cursors.Default;

            MessageBox.Show("Elapsed Time: " + (DateTime.Now - datBegin).Seconds.ToString());
            MessageBox.Show("count = " + ds.Tables[0].Rows.Count.ToString());
2.Dataset可以序列化为二进制文件
 string connstr = "server=(local);database=northwind;integrated security=true;async=true";

[1] [2] [3] 下一页