求助大家帮我解释下以下代码!!!具体意思,功能,万分感谢

protected internal void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (!this.Page.ClientScript.IsClientScriptIncludeRegistered(this.Page.GetType(), "js_DeleteConfirm"))
                this.Page.ClientScript.RegisterClientScriptInclude(this.Page.GetType(), "js_DeleteConfirm", "../js/Confirm.js");
            this.btnDel.Attributes["OnClick"] = "return DeleteConfirm();";
            if (Request.UrlReferrer != null)
                ViewState["UrlReferrer"] = Request.UrlReferrer.ToString();

            OraDao ora = new OraDao(System.Configuration.ConfigurationManager.AppSettings["dycost"]);
            string sql = " select * from vw_code_anslysedata t where code_anslysedata='" + Request.QueryString["dpt"] + "'";
            DataView dv = ora.Query(sql);
            this.txtAnslyseData.Value = dv.Table.Rows[0]["ANSLYSEDATA"];
            this.txtDepartment.Value = dv.Table.Rows[0]["DEPARTMENT"];
            this.txtQuarter.Value = Request.QueryString["year"] + "-" + Request.QueryString["quarter"];
            string strContents = ora.ReadLob("select CONTENTS from VW_PRO_ANSLYSE  where code_anslysedata='" + Request.QueryString["dpt"] + "' and nyear='" + Request.QueryString["year"] + "' and nquarter='" + Request.QueryString["quarter"] + "' ");
            if (strContents != null && strContents.Length > 2)
            {
                this.btn_Save.Text = "修改";
                this.FCKeditor3.Value = strContents.Replace("''", "'");
            }
        }

    } --------------------编程问答-------------------- 有什么好解释的，页面加载时，读数据库，你要不懂就去看msdn

补充：.NET技术 ,  .NET Framework