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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void BulletedList3_Click(object sender, BulletedListEventArgs e)
    {//»ñÈ¡±»Ñ¡ÏîµÄÎı¾Öµ
        Response.Write(BulletedList3.Items[e.Index].Text);
    }
    protected void BulletedList2_DataBound(object sender, EventArgs e)
    {//×öÁ¬½Ó
        string[] val = new string[BulletedList2.Items.Count];
        for (int i = 0; i < BulletedList2.Items.Count; i++)
        {
            BulletedList2.Items[i].Value = "~/write.aspx?id="+BulletedList2.Items[i].Value;
           
            val[i] = BulletedList2.Items[i].Value;
        }
    }
    protected void xudatabound(object sender, EventArgs e)
    {
        string[] val = new string[BulletedListxu.Items.Count];
        for (int i = 0; i < BulletedListxu.Items.Count; i++)
        {
            BulletedListxu.Items[i].Value = "http://" + BulletedListxu.Items[i].Value;
            val[i] = BulletedListxu.


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´«ÖDz¥¿Í£­Tree in SQL£¨ÒëÎÄ£©£¨3£©

This has some predictable results that we can use for building queries. The root is always of the form (left = 1, right = 2 * (SELECT COUNT(*) from TreeTable)); leaf nodes always have (left + 1 = right); the BETWEEN predicate defines the subtrees; and so on. Here are some common queries that you can ......
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