sedna进行xquery查询

有一个文件book.xml:

<books>
	<book>
		<name>The Call Of Wild</name>
		<author>Jack London</author>
		<price>32.5$</price>
		<date>2015-7-6</date>
	</book>
	<book>
		<name>Wuthering Heights</name>
		<author>Emily Bronte</author>
		<price>40$</price>
		<date>2015-7-5</date>
	</book>
</books><books>
	<book>
		<name>The Call O