With the XQuery 1.0 language, database developers finally have a tool that will make it much easier to exchange information between XML and relational data sources. This in-depth tutorial not only walks you through the XQuery specification, but also teaches you how to program with this widely-anticipated language.

Although our book is still in progress, you can get going on this technology through our Rough Cuts version, which gives you access to the manuscript as it evolves. You can read it online or download it as a PDF. XQuery delivers a carefully paced tutorial that goes into the final 1.0 standard in detail. Unlike the abstract perspectives and broken quickstart books published before the 1.0 standard was made final, this book delves into critical advanced issues such as data typing and designing efficient query logic.

Whether you're coming from SQL, XSLT, or starting from scratch, you will learn about XQuery's support for filtering, sorting, and grouping data, as well as how to use FLWR expressions, XPath, and XQuery tools for extracting and combining information. With XQuery, you'll also discover how to apply all of these tools to a wide variety of data sources, and how to recombine information from multiple sources into a single final output result.