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Access2000数据库80万记录通用快速分页类

答案:刚用的,不错。给大家看看
   主要思路: 用一条语句统计(Count)出记录数(而不在查询时获得 RecordCount 属性), 缓存在 Cookies 中, 跳转时就不用再次统计. 使用 ADO 的 AbsolutePage 属性进行页面跳转即可. 为方便调用而写成类, 代码主要地方已有说明

硬件环境: AMD Athlon XP 2600+, 256 DDR
软件环境: MS Windows 2000 Advanced Server + IIS 5.0 + Access 2000 + IE 6.0
测试结果: 初次运行在 250(首页) - 400(末页)毫秒, (记录数缓存后)在页面间跳转稳定在 47 毫秒以下.第1页跳到最后一页不多于 350 毫秒

适用范围: 用于普通分页. 不适用于有较复杂的查询时: 如条件为"[Title] Like '%最爱%'", 查询的时间大大增加, 就算 Title 字段作了索引也没用. :(
<%@LANGUAGE = "VBScript" CODEPAGE="936"%>
<%Option Explicit%>
<%
Dim intDateStart
intDateStart = Timer()
Rem ## 打开数据库连接
Rem #################################################################
  function f__OpenConn()
   Dim strDbPath
   Dim connstr
   strDbPath = "../db/test.mdb"
   connstr  = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="
   connstr  = connstr & Server.MapPath(strDbPath)
   Set conn  = Server.CreateObject("Adodb.Connection")
   conn.open connstr
  End function
Rem #################################################################

Rem ## 关闭数据库连接
Rem #################################################################
  function f__CloseConn()
   If IsObject(conn) Then
    conn.close
   End If
   Set conn = nothing
  End function
Rem #################################################################
Rem 获得执行时间
Rem #################################################################
function getTimeOver(iflag)
  Dim tTimeOver
  If iflag = 1 Then
   tTimeOver = FormatNumber(Timer() - intDateStart, 6, true)
   getTimeOver = " 执行时间: " & tTimeOver & " 秒"
  Else
   tTimeOver = FormatNumber((Timer() - intDateStart) * 1000, 3, true)
   getTimeOver = " 执行时间: " & tTimeOver & " 毫秒"
  End If
End function
Rem #################################################################
Class Cls_PageView
  Private sbooInitState
  Private sstrCookiesName
  Private sstrPageUrl
  Private sstrPageVar
  Private sstrTableName
  Private sstrFieldsList
  Private sstrCondiction
  Private sstrOrderList
  Private sstrPrimaryKey
  Private sintRefresh
  
  Private sintRecordCount
  Private sintPageSize
  Private sintPageNow
  Private sintPageMax
  
  Private sobjConn
  
  Private sstrPageInfo
  
  Private Sub Class_Initialize
   Call ClearVars()
  End Sub
   
  Private Sub class_terminate()
   Set sobjConn = nothing
  End Sub
  
  Public Sub ClearVars()
   sbooInitState = False
   sstrCookiesName = ""
   sstrPageUrl = ""
   sstrPageVar = "page"
   sstrTableName = ""
   sstrFieldsList = ""
   sstrCondiction = ""
   sstrOrderList = ""
   sstrPrimaryKey = ""
   sintRefresh = 0
   
   sintRecordCount = 0
   sintPageSize = 0
   sintPageNow = 0
   sintPageMax = 0
  End Sub
  
  Rem ## 保存记录数的 Cookies 变量
  Public Property Let strCookiesName(Value)
   sstrCookiesName = Value
  End Property
  
  Rem ## 转向地址
  Public Property Let strPageUrl(Value)
   sstrPageUrl = Value
  End Property
  
  Rem ## 表名
  Public Property Let strTableName(Value)
   sstrTableName = Value
  End Property
  
  Rem ## 字段列表
  Public Property Let strFieldsList(Value)
   sstrFieldsList = Value
  End Property
  
  Rem ## 查询条件
  Public Property Let strCondiction(Value)
   If Value <> "" Then
    sstrCondiction = " WHERE " & Value
   Else
    sstrCondiction = ""
   End If
  End Property
  
  Rem ## 排序字段, 如: [ID] ASC, [CreateDateTime] DESC
  Public Property Let strOrderList(Value)
   If Value <> "" Then
    sstrOrderList = " ORDER BY " & Value
   Else
    sstrOrderList = ""
   End If
  End Property
  
  Rem ## 用于统计记录数的字段
  Public Property Let strPrimaryKey(Value)
   sstrPrimaryKey = Value
  End Property
  
  Rem ## 每页显示的记录条数
  Public Property Let intPageSize(Value)
   sintPageSize = toNum(Value, 20)
  End Property
  
  Rem ## 数据库连接对象
  Public Property Let objConn(Value)
   Set sobjConn = Value
  End Property
  
  Rem ## 当前页
  Public Property Let intPageNow(Value)
   sintPageNow = toNum(Value, 1)
  End Property
  
  Rem ## 页面参数
  Public Property Let strPageVar(Value)
   sstrPageVar = Value
  End Property
  
  Rem ## 是否刷新. 1 为刷新, 其他值则不刷新
  Public Property Let intRefresh(Value)
   sintRefresh = toNum(Value, 0)
  End Property
  
  Rem ## 获得当前页
  Public Property Get intPageNow()
   intPageNow = singPageNow
  End Property
  
  Rem ## 分页信息
  Public Property Get strPageInfo()
   strPageInfo = sstrPageInfo
  End Property
  
  Rem ## 取得记录集, 二维数组或字串, 在进行循环输出时必须用 IsArray() 判断
  Public Property Get arrRecordInfo()
   If Not sbooInitState Then
    Exit Property
   End If
   
   Dim rs, sql
   sql = "SELECT " & sstrFieldsList & _
    " FROM " & sstrTableName & _
    sstrCondiction & _
    sstrOrderList
   
   Set rs = Server.CreateObject("Adodb.RecordSet")
   rs.open sql, sobjConn, 1, 1
   If Not(rs.eof or rs.bof) Then
    rs.PageSize = sintPageSize
    rs.AbsolutePage = sintPageNow
    If Not(rs.eof or rs.bof) Then
     arrRecordInfo = rs.getrows(sintPageSize)
    Else
     arrRecordInfo = ""
   &nb

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