Java技术
2005: 03 04 05 06 07 08
09 10 11 12
2006: 01 02
Asp.net
2005: 07 08 09 10 11 12
2006: 01 02
using System;
using System.IO;
using System.Xml;
using System.Xml.Query;
using System.Data.SqlXml;
namespace XQuery{
public class XQuerySample{
public static void Main(string[] args) {
System.Xml.XmlDataSourceResolver ds = new System.Xml.XmlDataSourceResolver ();
ds.Add("bookstore","books.xml");
StreamWriter writer=new StreamWriter("output.xml");
string query=@"<bookstore> {
for $b in document(´bookstore´)/bookstore/book
where $b/@genre=´philosophy´ and $b/@publicationdate=´1991´
return $b/title
}
</bookstore>";
XQueryProcessor xp = new XQueryProcessor ();
xp.Compile(query);
xp.Execute(ds, writer);
writer.Close();
}
}
}
| books.xml |
<?xml version="1.0" encoding="utf-8"?>
<!-- This file represents a fragment of a bookstore database -->
<bookstore>
<book genre="autobiography" publicationdate="1981" ISBN="1-861-11-0">
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Benjamin</first-name>
<last-name>Franklin</last-name>
</author>
<price>8.99</price>
</book>
<book genre="novel" publicationdate="1967" ISBN="0-201-63361-2">
<title>The Confidence Man</title>
<author>
<first-name>Herman</first-name>
<last-name>Melville</last-name>
</author>
<price>11.99</price>
</book>
<book genre="philosophy" publicationdate="1991" ISBN="1-861001-57-6">
<title>The Gorgias</title>
<author>
<name>Plato</name>
</author>
<price>9.99</price>
</book>
</bookstore>
| output.xml |