死老坑扮后生

发发牢骚，就是...說說話而已....

日志

关于我

cbcman

动静皆宜,性格慢热！玩起来可以很疯狂。

文章分类

SQL一列多行字符串分组合并

2012-12-28 00:10:59| 分类： SQL Server | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

最近工作遇到如下数据：需要合并后只剩下两行的数据，普通的group by 是不能实现的。（如图）

利用如下SQL代码，即可实现需求（如图）：

利用 stuff 函数实现分拆合并操作

  select TeacherName,TrainingCenterName=stuff
  (
    (select ','+TrainingCenterName
     from @tmp a where a.TeacherName=b.TeacherName for xml path('')),1,1,''
  ) 
  from @tmp b
  group by TeacherName

结果如下：

注意：以上写法只限Sql Server2005及以上版本运行。

评论这张

转发至微博

阅读(7410)| 评论(3)

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_087065086082083074086086082065072080085075085080082064085',
              blogTitle:'SQL一列多行字符串分组合并',
              blogAbstract:'  <P\>最近工作遇到如下数据：需要合并后只剩下两行的数据，普通的group by 是不能实现的。（如图）</P\>  <DIV\><IMG style=\"MARGIN: 0px 10px 0px 0px;\"  title=\"SQL一列多行字符串分组合并 - cbcman - 死老坑扮后生\"  alt=\"SQL一列多行字符串分组合并 - cbcman - 死老坑扮后生\"  src=\"http://img5.ph.126.net/AAUzhpSfPXQE_njgsg7u-w==/6598261637261094935.jpg\"  \></DIV\>  <DIV\> </DIV\>  <P\> 利用如下SQL代码，即可实现需求（如图）：</P\>  <P\>利用 stuff 函数实现分拆合并操作</P\><PRE class=\"prettyprint\" \><P\>  select TeacherName,TrainingCenterName=stuff<BR\>  (<BR\>    (select \',\'+TrainingCenterName<BR\>     from @tmp a where a.TeacherName=b.TeacherName for xml path(\'\')),1,1,\'\'<BR\>  ) <BR\></P\></PRE\>',
              blogTag:'合并字符串,一列多行合并,stuff',
              blogUrl:'blog/static/6481643120121127114843240',
              isPublished:1,
              istop:false,
              type:0,
              modifyTime:1356625071189,
              publishTime:1356624659549,
              permalink:'blog/static/6481643120121127114843240',
              commentCount:3,
              mainCommentCount:2,
              recommendCount:1,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'动静皆宜,性格慢热！玩起来可以很疯狂。',
              hmcon:'0',
              selfRecomBlogCount:'0',
              lofter_single:'<iframe width="140" height="560" style="overflow:hidden;" src="http://www.lofter.com/mailEntry.do?blogad=1&blog" frameBorder="0"></iframe>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/6481643120121127114843240">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 手机博客 - 下载LOFTER APP - 订阅此博客

死老坑扮后生

导航

日志

SQL一列多行字符串分组合并

历史上的今天

最近读者

热度

评论

页脚