利用前台程序控制行转列数据的输出,可能从效率和扩展性上更好.一个例子

采用   sql2k   +   .net2005   +   xslt完成.

效率情况分析:
若表中数据量比较大,   而统计出的结果数据比较少,那么效果比较好.
因为,数据库得出统计数据,   在少量的数据下由xslt完成格式输出工作.

当然,xslt完成的输出,特别是输出岗位数据这一步分,还是比较占web服务器资源的.   如果想省掉,那也很简单,   还是一句话,直接把数据以xml格式输出,用js来完成table的布局,让它去占访客的ie资源吧.

 

create   TABLE  pm(id  varchar ( 20 ),name  varchar ( 20 ),DeptName  varchar ( 20 ),DeptID  varchar ( 20 ),DeptSequence  int ,tnum  int ,Extension  varchar ( 20 ))
go
insert   into  pm(id,name,DeptName,DeptID,DeptSequence,tnum,Extension) values ( 1 ,  ' 张三 ' ,  ' 1部 ' , 1 , 10 , 1 , ' 123 ' )
insert   into  pm(id,name,DeptName,DeptID,DeptSequence,tnum,Extension) values ( 2 ,  ' 李四 ' ,  ' 1部 ' , 1 , 10 , 2 , ' 456 ' )
insert   into  pm(id,name,DeptName,DeptID,DeptSequence,tnum,Extension) values ( 3 ,  ' 王五 ' ,  ' 2部 ' , 2 , 20 , 1 , ' 321 ' )
go
create   TABLE  RI(id  varchar ( 20 ),perid  varchar ( 20 ),StateName  varchar ( 20 ),partid  varchar ( 20 ),RegisterDate  datetime )
go
insert   into  RI(id,perid,StateName,partid,RegisterDate) values ( 1 ,  1 ,  ' 面试通过 ' , 1 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  2 ,  1 ,  ' 面试不通过 ' , 3 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  3 ,  2 ,  ' 很黄很暴力 ' , 4 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  4 ,  3 ,  ' 面试不通过 ' , 4 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  5 ,  1 ,  ' 放弃 ' , 1 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  6 ,  2 ,  ' 面试不通过 ' , 5 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  7 ,  3 ,  ' 面试通过 ' , 6 , getdate ())
insert   into  RI(id,perid,StateName,partid,RegisterDate) values (  8 ,  1 ,  ' 好 ' , 7 , getdate ())
go

create   TABLE  part(id  varchar ( 20 ),name  varchar ( 20 ))
go
insert   into  part(id,name) values (  1 ,  ' 文员 ' )
insert   into  part(id,name) values (  2 ,  ' 法师 ' )
insert   into  part(id,name) values (  3 ,  ' 牧师 ' )
insert   into  part(id,name) values (  4 ,  ' 盗贼 ' )
insert   into  part(id,name) values (  5 ,  ' 骑士 ' )
insert   into  part(id,name) values (  6 ,  ' 萨满 ' )
insert   into  part(id,name) values (  7 ,  ' 战士 ' )
insert   into  part(id,name) values (  8 ,  ' 德鲁伊 ' )
insert   into  part(id,name) values (  9 ,  ' 猎人 ' )
insert   into  part(id,name) values (  10 ,  ' 术士 ' )
go




alter   proc  getDemoData
AS
begin
select  a.DeptName,a.DeptSequence,a.Name,a.tnum,a.Extension,a.id perid,
         sum ( case  statename  when   ' 面试通过 '   then   1   else   0   end ) passNum,
         count ( * ) viewNum
     from  pm a
inner   join  ri b
     on  a.id = b.perid
     group   by  a.DeptName,a.DeptSequence,a.Name,a.tnum,a.Extension,a.id 
     for  xml  raw



select  c.name name, isnull (b.perid, 0 ) perid, isnull ( count (b.perid), 0 ) perNum
     from  part c
left   join  ri b
     on  b.partid = c.id
     group   by  b.perid,c.name
     for  xml  raw
end
go


go
-- drop table pm,ri,part
-- go

 

demoXsltReport.aspx.cs

 

using  System;
using  System.Data;
using  System.Configuration;
using  System.Collections;
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;
using  System.Xml;
using  System.Xml.Xsl;
using  System.Text;
using  System.Data.SqlClient;

public   partial   class  demoXsltReport : System.Web.UI.Page
... {
    protected void Page_Load(object sender, EventArgs e)
    ...{
        Response.Write(TransForm(buildXML(), "demoTransformData.xsl"));
    }

    private string getConnStr()
    ...{
        return ConfigurationManager.AppSettings["connstr"];
    }

    private XmlDocument buildXML()
    ...{
        StringBuilder sb = new StringBuilder();
        sb.Append("<?xml version="1.0" encoding="utf-8"?>");
        sb.Append("<root>");

        SqlConnection cn = new SqlConnection(getConnStr());
        cn.Open();
        SqlCommand cmd = new SqlCommand("getDemoData", cn);
        cmd.CommandType = CommandType.StoredProcedure;

        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.Read())
        ...{
            sb.Append(" <DeptData>" + dr[0].ToString() + "</DeptData>");
        }

        dr.NextResult();

        if (dr.Read())
        ...{
            sb.Append(" <PertData>" + dr[0].ToString() + "</PertData>");
        }
        dr.Close();
        cn.Close();
        cn.Dispose();

        sb.Append("</root>");

        XmlDocument xd = new XmlDocument();
        xd.LoadXml(sb.ToString());
        return xd;

    }

    public string TransForm(XmlDocument xd, string xslURL)
    ...{
        XslTransform xsl = new XslTransform();
        xsl.Load(Server.MapPath(xslURL));
        System.IO.MemoryStream t = new System.IO.MemoryStream();
        xsl.Transform(xd, null, t, null);
        return System.Text.UTF8Encoding.UTF8.GetString(t.ToArray());
    }
}

dataTransform.xsl

 

<? xml version="1.0" encoding="utf-8" ?>
< xsl:stylesheet  version ="2.0"  xmlns:xsl ="http://www.w3.org/1999/XSL/Transform"  xmlns ="http://www.w3.org/1999/xhtml" >
   < xsl:key  name ="pert_group"  match ="//PertData/row[@perid!=0]"  use ="@name"   />
   < xsl:variable  name ="pertNum"  select ="count(//PertData/row[@perid!=0 and count(.|key('pert_group',./@name)[1])=1])" />
   < xsl:template  match ="/" >
     < html  xmlns ="http://www.w3.org/1999/xhtml" >
       < head >
         < title > demo </ title >
       </ head >


       < body >
         < table  border ="1" >
           <!-- 制作表头 -->
           < tr >
             < td > DeptName </ td >
             < td > DeptSequence </ td >
             < td > PersonName </ td >
             < td > tNum </ td >
             < td > Extension </ td >
             < td > perid </ td >
             < td > PassNum </ td >
             < td > viewNum </ td >
             <!--
            <xsl:for-each select="//PertData/row[@perid!=0]">
              <td>
                <xsl:value-of select="@name"/>
              </td>
            </xsl:for-each>
             -->
             < xsl:call-template  name ="getPertNameList" />
           </ tr >
           <!-- 输出数据 -->
           < xsl:for-each  select ="//DeptData/row" >
             < tr >
               < td >
                 < xsl:value-of  select ="@DeptName" />
               </ td >
               < td >
                 < xsl:value-of  select ="@DeptSequence" />
               </ td >
               < td >
                 < xsl:value-of  select ="@Name" />
               </ td >
               < td >
                 < xsl:value-of  select ="@tnum" />
               </ td >
               < td >
                 < xsl:value-of  select ="@Extension"  disable-output-escaping ="yes" />
               </ td >
               < td >
                 < xsl:value-of  select ="@perid" />
               </ td >
               < td >
                 < xsl:value-of  select ="@passNum" />
               </ td >
               < td >
                 < xsl:value-of  select ="@viewNum" />
               </ td >

               < xsl:call-template  name ="getPertNumForDept" >
                 < xsl:with-param  name ="perid"  select ="@perid" />
               </ xsl:call-template >

             </ tr >
           </ xsl:for-each >
         </ table >
       </ body >
     </ html >
   </ xsl:template >



   < xsl:template  name ="getPertNumForDept" >
     < xsl:param  name ="perid" />
     < xsl:for-each  select ="//PertData/row[@perid!=0 and count(.|key('pert_group',./@name)[1])=1]" >
       < xsl:sort  data-type ="text"  select ="@name" />
       < td >
         < xsl:choose >
           < xsl:when  test ="@perid=$perid" >
             < xsl:value-of  select ="@perNum" />
           </ xsl:when >
           < xsl:otherwise > 0 </ xsl:otherwise >
         </ xsl:choose >
       </ td >
     </ xsl:for-each >
    
   </ xsl:template >

   < xsl:template  name ="getPertNameList" >
     < xsl:for-each  select ="//PertData/row[@perid!=0 and count(.|key('pert_group',./@name)[1])=1]" >
       < xsl:sort  data-type ="text"  select ="@name" />
       < td >
         < xsl:value-of  select ="./@name" />
       </ td >
     </ xsl:for-each >
   </ xsl:template >

</ xsl:stylesheet >