Koyarciyan element da yantici XQuery
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向结果添加元素和属性
正如在前面一节看到的，我们可以在结果中引用输入文件中的元素和属性：
for $x in doc("books.xml")/bookstore/book/title
kaɗan $x
kaɗan $x
kaɗan XQuery ɗin zai ɗaukar $x a cikin nuna kashi wajen haka:
<title lang="en">Everyday Italian</title> <title lang="en">Harry Potter</title> <title lang="en">Learning XML</title> <title lang="en">XQuery Kick Start</title>
kaɗan XQuery ɗin zai ɗaukar title ɗin ƙasa da lang ɗin ɗaukar ɗin ƙasa a cikin nuna kashi wajen haka:
a naa zaɓi waɗannin kumaɓi ɗin naɗi da hanyar ɗan ƙasa a cikin nuna kashi!
taɓaɓaɓar ƙarƙashin HTML da rubutu
a naa zaɓi waɗannin kumaɓi ɗin HTML a cikin nuna kashi wajen haka:
<html>
<body>
<h1>Bookstore</h1>
<ul>
{
for $x in doc("books.xml")/bookstore/book
kaɗan $x/title
return <li>{data($x/title)}. Category: {data($x/@category)}</li>
}
</ul>
</body>
</html>
kaɗan XQuery ɗin zai hanci kashi wajen haka:
<html> <body> <h1>Bookstore</h1> <ul> <li>Everyday Italian. Category: COOKING</li> <li>Harry Potter. Category: CHILDREN</li> <li>Learning XML. Category: WEB</li> <li>XQuery Kick Start. Category: WEB</li> </ul> </body> </html>
taɓaɓaɓar hanyar ɗan ƙasa a cikin ƙarƙashin HTML
koyawa, a naa zaɓi waɗannin kumaɓi ɗin category a matsayin hanyar class a cikin ƙofofin HTML:
<html>
<body>
<h1>Bookstore</h1>
<ul>
{
for $x in doc("books.xml")/bookstore/book
kaɗan $x/title
return <li class="{data($x/@category)}">{data($x/title)}</li>
}
</ul>
</body>
</html>
kaɗan XQuery ɗin za a hanci kashi wajen haka:
<html> <body> <h1>Bookstore</h1> <ul> <li class="COOKING">Everyday Italian</li> <li class="CHILDREN">Harry Potter</li> <li class="WEB">Learning XML</li> <li class="WEB">XQuery Kick Start</li> </ul> </body> </html>
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