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AspNetPager+ROW_NUMBER()的分页存储过程 【百万数据】

2011-05-19 14:47 706 查看
测试的时候使用了200W条数据，速度还是很快的，相对来说比top not in 和top max id速度快点把

ROW_NUMBER()分页存储过程-SQL2005才支持



set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

 -- =============================================   

 -- Author:        <Author,,Name>   

 -- Create date: <Create Date,,>   

 -- Description:    <Description,,>   

 -- =============================================   
ALTER PROCEDURE [dbo].[PagePro]   

 @table varchar(100),  --要分页的表   

 @strcondition varchar(500),  --约束条件   

 @orderkey varchar(20), --排序的依据字段   

 @strorder varchar(4),   --排序的类型,desc是倒序,asc是正序）   

 @pageindex int=1,      --查询页   

 @pagesize  int=10,      --每页显示数目      

 @totalcount int=0 output     --查询总数   

 AS  
 SET NOCOUNT ON  

 declare @SQL varchar(1000)      --执行分页语句1   

 declare @SQL1 varchar(1000)     --执行分页语句2   

 declare @SQLCount nvarchar(4000) --查询总数语句   

 declare @start as int              --查询开始位置   

 declare @end as int                --查询结束位置   

 BEGIN 

    

 --查询总数   

 set @SQLCount ='select @totalcount=count(*) from (select *,ROW_NUMBER() OVER(order by ' + @orderkey+' '+ @strorder+') as tempId  from '+@table+') as tmp   

 where '+@strcondition   

 execute sp_executesql @SQLCount,N'@totalcount int output',@totalcount output 

    

 --找到查询的开始位置   

 set @start=(@pageindex-1) * @pagesize + 1  

    

 --找到查询的结束位置   

 set @end=@pageindex * @pagesize  
    

 --,ROW_NUMBER() OVER(order by ' + @orderkey+' '+ @strorder+') as tempId   

 --执行分页   

 set @SQL ='select *,ROW_NUMBER() OVER(order by ' + @orderkey+' '+ @strorder+') as tempId from '+@table+'  where ' +@strcondition  

    

 set @SQL1 ='select * from ('+@SQL+') as temp2 where tempId between '+Convert(nvarchar,@start)+' and '+Convert (nvarchar,@end)   

 execute(@SQL1)   

 print @SQL1   

 END




前台代码



<table cellpadding="0" cellspacing="1">
    
    <asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
    <tr style='background-color:<%#(Container.ItemIndex%2==0)?"#fff":"#eee"%>' class="meet_tr" onmouseover="fOver(this);" onmouseout="fOut(this);">
        <td style="height:30px;"><%#Eval("id")%></td>
        <td style="height:30px;"><%#Eval("userName")%></td>
        <td style="height:30px;"><%#Eval("userPWD")%></td>
        <td style="height:30px;"><%#Eval("userEmail")%></td>
    </tr>
    </ItemTemplate>
    </asp:Repeater>
    <tr>
        <td>
            <webdiyer:AspNetPager ID="AspNetPager1" runat="server"  
            CurrentPageButtonClass="current" CurrentPageButtonPosition="Center"  
            CurrentPageButtonStyle="font-color:blue"  
            CustomInfoHTML="每页%PageSize%条记录 总共%RecordCount%条记录 页码：%CurrentPageIndex%/%PageCount%"  
            FirstPageText="首页" LastPageText="尾页" NextPageText="下一页" NumericButtonCount="8"  
            onpagechanging="AspNetPager1_PageChanging" PageIndexBoxType="TextBox"  
            PrevPageText="上一页" ShowCustomInfoSection="Left" ShowMoreButtons="False"  
            ShowPageIndex="False" ShowPageIndexBox="Always" SubmitButtonText="跳转"  
            TextAfterPageIndexBox="页" TextBeforePageIndexBox="">   
            </webdiyer:AspNetPager> 

        </td>
    </tr>
</table>




后台代码



protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            GetPage();
        } 

    }

    public void GetPage()
    {
        int count;
        Repeater1.DataSource = Pager("tb_TestTable", "id", "1=1", AspNetPager1.CurrentPageIndex, AspNetPager1.PageSize, out count, "desc");   
        Repeater1.DataBind();   
        AspNetPager1.RecordCount = count;  //这个也是必须的   
    }

    //翻页事件
    protected void AspNetPager1_PageChanging(object src, Wuqi.Webdiyer.PageChangingEventArgs e)   
    {
        AspNetPager1.CurrentPageIndex = e.NewPageIndex;   //设置当前的页码   
        GetPage();  //重新分页
    }

    public static DataTable Pager(string tablename, string orderkey, string strcondition, int pageIndex, int pageSize, out int count, string strorder)   
    {   
         DataTable dt = new DataTable();   
         //构造存储过程page的参数   
         count = 0;   
         SqlParameter[] paras = new SqlParameter[]{   
                new SqlParameter("@table",tablename),   
                new SqlParameter("@pageIndex",pageIndex),   
                new SqlParameter("@pageSize",pageSize),   
                new SqlParameter("@strcondition",strcondition),   
                new SqlParameter("@orderkey",orderkey),   
                new SqlParameter("@totalcount",count),    
                new SqlParameter("@strorder",strorder),   
             };   
         paras[5].Direction = ParameterDirection.Output;   //指定count为输出类型      
         //string connstr = ConfigurationManager.ConnectionStrings["ConnectionStringZSCX"].ConnectionString;  //连接字符串，需要在数据库中配置   
         //SqlConnection conn = new SqlConnection(connstr);   
         //conn.Open();  
        
         //SqlCommand cmd = new SqlCommand("PagePro", conn);   
         //cmd.CommandType = CommandType.StoredProcedure;   
         //cmd.Parameters.AddRange(paras);  
         //SqlDataReader sdr;   
         //using (sdr = cmd.ExecuteReader(CommandBehavior.CloseConnection))   
         //{   
         //    dt.Load(sdr);   
         //}   
         SqlDataReader sdr = SqlHelper.RunProcedure("PagePro", paras);
         dt.Load(sdr);
         count = Convert.ToInt32(paras[5].Value);     
         return dt;   
   }
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