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	XQuery - Wikipedia, the free encyclopedia
		XQuery is a query language (with some programming language features) that is designed to query collections of XML data.
		XQuery 1.0 is being developed by the XML Query working group of the W3C.
		XQuery is a functional language consisting entirely of expressions.
	en.wikipedia.org /wiki/XQuery (619 words)

	An introduction to XQuery
		XQuery had its origins in a W3C-sponsored query language workshop held way back in 1998, in which representatives from industry, academia, and the research community gathered in Boston to present their views on the features and requirements they considered important in a query language for XML.
		XQuery 1.0: An XML Query Language is the linchpin document of the set, but the other documents all contribute toward what is an astonishingly well-specified and comprehensively backstopped language.
		XQuery Update Facility Requirements: The features that XQuery requires to be able to write new data into existing documents, as well as query against them.
	www-128.ibm.com /developerworks/java/library/x-xquery.html (3914 words)

	XML.com: What Is XQuery
		XQuery is a powerful and convenient language designed for processing XML data.
		XQuery gives you that ability, plus the ability to embed XML/HTML forms inside expressions, and to have them be the value of variables and parameters.
		XQuery node values are immutable (you cannot modify a node after it has been created).
	www.xml.com /pub/a/2002/10/16/xquery.html (652 words)

	Essential XQuery - The XML Query Language (Site not responding. Last check: 2007-10-22)
		XQuery or XML Query Language is a W3C specification (http://www.w3.org/TR/xquery) designed to provide a flexible and standardized way of searching through (semi-structured) data that is either physically stored as XML or virtualized as XML (such as XML Views over relational data).
		XQuery 1.0 does not use XML syntax (however, it is important to note that XQuery is case-sensitive language).
		XQuery allows you to check if a value is of some specified sequence type, or do various things based on the type of the value, or cast the value from one type to the other.
	www.yukonxml.com /articles/xquery (7657 words)

	XQuery 1.0: An XML Query Language
		XQuery is designed to meet the requirements identified by the W3C XML Query Working Group [XML Query 1.0 Requirements] and the use cases in [XML Query Use Cases].
		The static semantics of XQuery are normatively defined in [XQuery 1.0 and XPath 2.0 Formal Semantics].
		XQuery is defined in terms of the data model and the expression context.
	www.w3.org /TR/xquery (10658 words)

	PerfectXML.com - An Introduction to XQuery
		XQuery is the first language to receive industry-wide attention and support.
		The data model that XQuery uses is based on that of XPath and defines each XML document as a tree of nodes.
		XQuery provides most of operators and functions that can also be found in other computer languages, including arithmetic operators, comparison operators, logical operators and sequence-related operators.
	www.perfectxml.com /articles/xml/xquery.asp (1504 words)

	Fawcette.com - Get Ready for XQuery (Site not responding. Last check: 2007-10-22)
		XQuery's basic objective is to let you access a collection of real or virtual XML documents as you would a database.
		XQuery's built-in data types conform to XML Schema Description Language (XSD) atomic and some derived data types, but queries don't require schemas for source documents.
		XQuery offers seven types of expressions, but FLWR (pronounced "flower") expressions are the most interesting to data-oriented developers.
	www.fawcette.com /xmlmag/2002_08/online/xml_rjennings_08_12_02 (409 words)

	Qexo: The GNU Kawa implementation of XQuery
		However, XQuery is an expression-oriented language, so you don't need to clutter up your code with print or echo statements.
		XQuery is staticly typed (in contrast to xslt).
		Both are available from the Kawa ftp site http://ftp.gnu.org/pub/gnu/kawa/ or a mirror However, XQuery is new and constantly changing, so you might prefer to get Kawa from the CVS repository, as described in the Kawa manual.
	www.qexo.org (728 words)

	Xquery Lite (Site not responding. Last check: 2007-10-22)
		Xquery Lite is a subset of the W3C's Xquery 1.0 language.
		We may have several Xquery expressions in a return expression enclosed by brackets and each of them can be a full FLWR expression so we may have sub-queries using query variables as XML sources and producing some result.
		Comment: The Xquery Lite 1.0 language doesn't have an IF statement yet (it is planned for 1.1) so we have to split the query in two parts one for the books with more than two authors and another part for the books with 2 or less authors.
	phpxmlclasses.sourceforge.net /xquery_lite.html (2115 words)

	XQuery: Reinventing the Wheel?
		XQuery is the newly drafted W3C XML Query language.
		XQuery's path expression syntax might be called an "extended subset" of XPath[4], where this oxymoron describes the fact that, while similar to XPath and defined in terms of XPath, it is decidedly not XPath.
		XQuery is a work in progress; accordingly, it should not be criticized too heavily for underspecification.
	www.xmlportfolio.com /xquery.html (6258 words)

	Object Computing, Inc. - Java News Brief - January 2004
		XQuery is a strongly typed functional language for processing real or virtual XML data.
		The XQuery specifications are prepared by the W3C XML Query Working Group, and are in the Last Call Working Draft stage.
		XQuery variables are read-only as there is no way to assign new values to a variable after its declaration.
	www.ociweb.com /jnb/jnbJan2004.html (2042 words)

	Industry Standard: XQuery: A New Way to Search (Site not responding. Last check: 2007-10-22)
		XQuery provides a mechanism for efficiently and easily extracting information from relational databases, files, and other data sources, requiring only that those data sources provide an XML view of the data.
		XQuery and XPath 2.0 are being developed by the same W3C Working Group, and XQuery actually includes XPath 2.0 as a subset.
		XQuery is also unique as far as query languages go in that it has two syntaxes: a human-readable syntax and an XML syntax—that is, XML elements and attributes that express a query equivalent to the human-readable syntax.
	www.oracle.com /technology/oramag/oracle/05-jan/o15industry.html (1448 words)

	XQuery.com: Specifications, Articles, Mailing List, and Vendors (Site not responding. Last check: 2007-10-22)
		XQuery is a technology under development by the World Wide Web Consortium (W3C) that's designed to query collections of XML data -- not just XML files, but anything that can appear as XML, including relational databases.
		XQuery has broad support from IBM, Microsoft, and Oracle as well as application server vendors such as BEA and Software AG.
		This list is for practical discussion about XQuery: a place to work together to learn a new language, talk about problem solutions, discuss engines and implementations, chat about the latest announcements, and so on.
	www.xquery.com (537 words)

	DataDirect XQuery â“ XQuery and XQJ for Oracle, SQL Server, DB2 and more: Products: Home
		DataDirect XQuery™ is an implementation of XQuery and the XQuery for Java API that can query XML and relational data.
		And two separate XQuery GUI development environments are available to make it easier to write and test your queries.
		XQuery is an ideal language for implementing web services, since it can query an incoming request as XML, and query relational databases or XML configuration files that have been installed on the middle tier, producing the XML needed for a response.
	www.datadirect.com /products/xquery/index.ssp (1104 words)

	Debunking XQuery myths and misunderstandings
		XQuery has so much developer momentum behind it that IBM and Oracle put their rivalries on the back burner to extend their core database products to offer XQuery capabilities.
		Where XQuery and XSLT overlap is in the problems they solve: transformation of XML data, federation of XML collections, and advanced query of XML data.
		XQuery plays an important role in data transformation as new schemas are adopted and existing schemas evolve.
	www-128.ibm.com /developerworks/xml/library/x-xqmyth.html?ca=dnt-619 (3118 words)

	XQuery in Relational Database Systems
		XQuery on the other hand is more prescriptive in its transformation capabilities, which makes it better suited for optimization and is closer in its processing model to the known SQL processing model.
		Top-level XQuery becomes the top-level language that is used as the primary query language at the same level as SQL.
		We have taken a look at the XQuery integration that SQL Server 2005 is providing and have seen the major parts of the XQuery support that is being added to the upcoming SQL standard.
	www.idealliance.org /proceedings/xml04/papers/254/XQueryRDS.html (3594 words)

	XQuery Introduction
		XQuery is a language for finding and extracting elements and attributes from XML documents.
		XQuery 1.0 and XPath 2.0 share the same data model and support the same functions and operators.
		XQuery is compatible with several W3C standards, such as XML, Namespaces, XSLT, XPath, and XML Schema.
	www.w3schools.com /xquery/xquery_intro.asp (636 words)

	XQuery
		XQuery speeds up the process of finding information contained in an XML document, which is very handy when dealing with long XML documents.
		XQuery interprets your request and retrieves the information that you need from the XML document.
		XQuery is an extension of XPath; therefore, make sure that you read Chapter 6 before moving ahead with this chapter.
	www.devarticles.com /c/a/XML/XQuery (1013 words)

	BumbleBee: The XQuery Test Harness (Site not responding. Last check: 2007-10-22)
		BumbleBee is an automated test harness for evaluating XQuery engines and validating queries expressed in the XQuery language.
		XQuery is quickly gaining traction as the standard language for querying and manipulating collections of XML data.
		Using XQuery, however, can be quite frustrating as you're faced with choosing from a variety of XQuery engines that support different versions and interpretations of the XQuery specification.
	www.xquery.com /bumblebee (923 words)

	Ipedo XQuery Tutorial
		A Quick introduction to common XQuery expressions –; XQuery is a functional language with an expression as the central expression.
		FLWOR expressions –; The FLWOR expression is one of the most versatile expressions in the XQuery language.
		XQuery built-in functions – The XQuery specification includes a large library of built-in functions.
	www.ipedo.com /html/xquery/xquery_tutorial (250 words)

	XML.com: XQuery Implementation
		XQuery has earned a reputation for being for one of the most cautiously developed and, therefore, slowest evolving W3C standards.
		Another reason for the low publicity level of XQuery is that so far there has been little evidence that XML data storage can become the ubiquitous technology that will unseat relational data storage.
		XQuery could then be used for the code analysis at that stage.
	www.xml.com /pub/a/2003/10/01/xquery.html (1404 words)

	W3C XML Query (XQuery)
		IBM's xqnsta: XQuery Normalizer and Static Analyzer (XQNSTA) is a Java API and GUI for normalizing and computing the static type of XQuery expressions.
		Querying XML : XQuery, XPath, and SQL/XML in context by Jim Melton and Stephen Buxton.
		XQuery from the Experts edited by Howard Katz, with chapters by Don Chamberlin, Denise Draper, Mary Fernandez, Michael Kay, Jonathan Robie, Michael Rys, Jerome Simeon, Jim Tivy and Philip Wadler.
	www.w3.org /XML/Query (2906 words)

	SQL Summit: Catalog of XQuery Engines, Processors and Tools
		There are XQuery processors embedded in database software for querying documents in relational or native XML databases.
		XQuery processors are available for several programming languages, including C++ and Java.
		The XQuery API for Java is in development through the Java Community Process as JSR-225.
	www.sqlsummit.com /XQueryProv.htm (368 words)

	Amazon.com: XQuery Kick Start: Books: James McGovern,Per Bothner,Kurt Cagle,James Linn,Vaidyanathan Nagarajan (Site not responding. Last check: 2007-10-22)
		XQuery Kick Start delivers a concise introduction to the XQuery standard, and useful implementation advice for developers needing to put it into practice.
		The final version of XQuery is expected at the end of 2002, and developers will crave information and useful implementation advice about this new XML tool.
		The XQuery specification is a work in progress but the book was written after (and refers to) the final draft - but a lot of the examples are not compliant with that final draft.
	www.amazon.com /exec/obidos/tg/detail/-/0672324792?v=glance (1319 words)

	Galax: An Implementation of XQuery (Site not responding. Last check: 2007-10-22)
		Galax closely tracks the definition of XQuery 1.0 as specified by the W3C and also implements XPath 2.0, which is a subset of XQuery 1.0.
		Galax's primary goal was to serve as a reference implementation for the XQuery 1.0 language, but it has evolved quite a lot since the very first prototype written by Jérôme at the beginning of 2001.
		XQuery users who want to learn the language and be able to try queries on a running system;
	www.galaxquery.org (549 words)

	Learn XQuery in 10 Minutes ...
		Kay is a member of the W3C committee on XQuery, XPath and XSLT, and the author of numerous best-selling XML books.
		Fortunately, XQuery is easy to learn, and a far cry easier than any other technology you're currently using for XML data integration.
		Once you've read "Learn XQuery in 10 Minutes", the easiest way to build real-world XQuery applications is with Stylus Studio® 6 XML Enterprise Edition, the world's leading XQuery development tool, with full support for XQuery Editing, XQuery Mapping, XQuery Debugging, XQuery Profiling, and more.
	www.javalobby.org /java/forums/t45027.html (857 words)

	Five Practical XQuery Applications
		XQuery is still a relatively new and unfamiliar XML-based language, but it offers many possibilities for simplifying tasks that today are difficult or tedious.
		XQuery is something of a hybrid—a powerful language with grammar similar to SQL, but more widely applicable.
		XQuery is timely not just because XML's popularity is on the rise.
	www.devx.com /xml/Article/15618 (462 words)

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