In .NET1.2, XQuery is supported, XQuery uses a query language called FLWOR. The example is as follows:
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 = @ " {for $ b in document ( 'bookstore') / bookstore / book where $ b / @ genre = 'philosophy' and $ b / @ publicationdate = '1991' return $ b / title} "; XQueryProcessor xp = new XQueryProcessor ( ); Xp.compile (query); xp.execute (ds, write); Writer.Close ();}}}
Books.xml
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</p>
<p><? XML Version = "1.0" encoding = "UTF-8"?> <bookstore> <title> The gorgias </ title> </ bookstore></p></div><div class="text-center mt-3 text-grey">
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