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          物格而后知致
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          A Simple XQuery Case

          <? xml?version="1.0"?encoding="ISO-8859-1" ?>
          < bookstore >

          ????
          < book? category ="COOKING" > ??
          ????????
          < title? lang ="en" > Everyday?Italian </ title >
          ????????
          < author > Giada?De?Laurentiis </ author >
          ????????
          < year > 2005 </ year >
          ????????
          < price > 30.00 </ price >
          ????
          </ book >
          ????
          ????
          < book? category ="CHILDREN" >
          ????????
          < title? lang ="en" > Harry?Potter </ title >
          ????????
          < author > J?K.?Rowling </ author >
          ????????
          < year > 2005 </ year >
          ????????
          < price > 29.99 </ price >
          ????
          </ book >
          ????
          ????
          < book? category ="WEB" >
          ????????
          < title? lang ="en" > XQuery?Kick?Start </ title >
          ????????
          < author > James?McGovern </ author >
          ????????
          < author > Per?Bothner </ author >
          ????????
          < author > Kurt?Cagle </ author >
          ????????
          < author > James?Linn </ author >
          ????????
          < author > Vaidyanathan?Nagarajan </ author >
          ????????
          < year > 2003 </ year >
          ????????
          < price > 49.99 </ price >
          ????
          </ book >
          ????
          ????
          < book? category ="WEB" >
          ????????
          < title? lang ="en" > Learning?XML </ title >
          ????????
          < author > Erik?T.?Ray </ author >
          ????????
          < year > 2003 </ year >
          ????????
          < price > 39.95 </ price >
          ????
          </ book >
          ????
          </ bookstore >
          book.xml

          <names>
          {
          for?$x?in?doc("book.xml")/bookstore/book
          where?$x/price?>?30
          return?
          <name>{$x/title/text()}</name>
          }
          </names>
          query.xq

          <names>
          ????
          <name>XQuery?Kick?Start</name>
          ????
          <name>Learning?XML</name>
          </names>
          names.xml

          posted on 2007-01-14 00:11 weidagang2046 閱讀(230) 評論(0)  編輯  收藏 所屬分類: XML

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