DataDirect XQuery™ is an implementation of XQuery and the XQuery for Java API that can query XML and relational data. It supports most relational databases, runs on any Java platform, and is easily embeddable into almost any Java program. Although no application server is required, it works with any J2EE Application Server. And two separate XQuery GUI development environments are available to make it easier to write and test your queries.
DataDirect XQuery is ideal for applications that do XML Publishing, XML Report Writing, Data Integration, XML processing for SOAP and Web Services, or Dynamic Web sites. Using DataDirect XQuery significantly simplifies application development by reducing the amount of code developers write and maintain to use XML and relational data together.