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XQuery Technology Overview

XQuery, also known as "XML Query", is an XML standard from the W3C for accessing and working with distributed information storage systems including content repositories, documents, relational databases, and object repositories using a simple and consise syntax. The XQuery language that uses the structure of XML intelligently can express queries across all these kinds of data, whether physically stored in XML or viewed as XML via middleware. Stylus Studio is pleased to provide the following XQuery resources, including XQuery Tutorials, XQuery reference guides and much more. Stylus Studio® is the world's leading XQuery IDE which fully supports the XQuery working draft of November 2004, and we are pleased to provide the following XQuery resources to further your understanding of this groundbreaking technology.

XQuery Tutorials

A new XQuery Tutorial, entitled: Building XQuery based Web service aggregation and reporting applications is available for free reading in PDF or HTML. This tutorial covers basic XQuery concepts and illustrates the creation of a sample stock-quote example Web service that uses XQuery technologies to efficiently aggregate and expose multiple data sources using Stylus Studio's XQuery tools.

XQuery Use Cases

Learn how leading developers are using XQuery technologies to build the next generation of advanced XQuery applications.

The 2005 XQuery Industry Study

Know the facts about XQuery! Stylus Studio surveyed 550 XML developers like you to try to understand who is using XQuery, how, and why? Download the 2005 Stylus Studio XQuery Industry Study today for free!

Help Support XQuery for All

Sign our online petition to save XQuery in the Microsoft .NET 2.0 Framework. Help us send a message to Redmond that XQuery is too valuable a technology to be left out of the .NET 2.0 Framework.

XQuery API for Java (XQJ)

XQJ is the XQuery API for Java — Download DataDirect XQuery, the first embeddable Java component to implement XQJ, enabling developers to programtically present and exchange relational data as XML and to process relational and XML data together in powerful yet simplfied and standards-based way.

XQuery Technology Talks

Technical interviews with the world's leading XQuery authorities, including XQuery specification editors Daniela Florescu and Dr. Michael Kay, and other industry experts including Jason Hunter, Michael Rys, Priscilla Walmsley and Mike Olson. The XQuery Tech talks feature discussion about XQuery technology trends including how and why they are likey to be used, and by whom.

XQuery Development Trends

Wondering how new XQuery technologies will impact your software development work? Read our article about XQuery development trends, according to some of the leading XQuery technology experts!

XQuery Discussion Forums

Got a question? Interested in learning more? Visit the new XQuery Help & Discussion Forum at the Stylus Studio Developer Network to learn more about this exciting emerging technology!

Working with XQuery

Stylus Studio provides many powerful XQuery development tools, including a graphical XQuery mapper that allows you to construct a query without writing any code, a robust XQuery editor with built in XQuery code completion, an XQuery profiler for optimizing XQuery performance and an integrated XQuery debugger to help troubleshoot XQuery expressions.

XQuery Videos

We've developed several introductory XQuery videos to visually demonstrate the power of Stylus Studio's various XQuery development tools. The first video, Introduction to the XQuery Mapper (WMV, 1.7MB), provides an overview of how to connect to query and aggregate XML sources in a powerful, standards-compliant way. The second video, Advanced XQuery Mapper Features (WMV, 2.1MB), covers in greater depth the use of Stylus Studio's advanced XQuery development tools to aggregate data from multiple XML sources for use in run time application.

XQuery Processors

Stylus Studio provides both its own built-in XQuery processor, but has also partnered with other leading XQuery Processor vendors including Saxonica to provide integrated XQuery editing, debugging and performance profiling support. Only Stylus Studio provides full integration with the Saxon XQuery processor!

XQuery Databases

Stylus Studio has partnered with Sleepycat and TigerLogic to provide integrated XQuery tools for the leading XQuery enabled databases and repositories.

XQuery Technical Specifications

Read up on the official XQuery 1.0 and XSLT 2.0 serialization specifications from our W3C technical resource section. Note that the W3C XQuery 1.0 specification uses the and XPath 2.0 Data Model, which is also the data model used by XSLT 2.0. XQuery 1.0 is expected to become a an official W3C Technical Recommendation sometime in mid-2005.

XQuery Talk Discussion List

XQuery talk is a mailing list 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.

XQuery Blog

The world's very first blog dedicated entirely about XQuery technologies! Musings, deep thoughs, tutorials and other and random facts about the state of XQuery development, written by XML guru, Jonathan Robie and Jonathan Bruce.

The Official XQuery FAQ

Now presenting! Everything you ever needed to know about XQuery (but were afraid to ask). A beginner's guide to the XQuery universe.

Free XQuery Book Chapter

Download Chapter 1 of the best-selling XQuery book - 'XQuery by the Experts', written by W3C XQuery guru Jonathan Robie and published by Addison Wesley. Chapter one entitled 'Introduction to XQuery' covers the most important technical concepts in a clear and easy to read fashion. (PDF)

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