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Media Systems Integration
Published in Al Kovalick, Video Systems in an IT Environment, 2013
XQuery is a query language specification developed by the World Wide Web Consortium (W3C) that is designed to query collections of XML data or even files that have only some XML data. XQuery makes possible the exciting prospect of a single query that searches across an incoming A/V metadata file in native XML format, an archive of catalog data also in native XML format, and archived metadata held in a relational database. It will take some time for the A/V industry to appreciate the value of this important new query language.
General introduction
Published in Adedeji B. Badiru, Handbook of Industrial and Systems Engineering, 2013
As the amount of information stored, exchanged, and presented is increased, the ability to intelligently query XML data sources becomes important. There are many existing XML query languages. A simpler one is XQL. XQuery is another popular XML query language designed to meet the requirements identified by the W3C XML Query Working Group.
Extensible Markup Language Basics
Published in Giovanni Bartolomeo, Tatiana Kováčiková, Identification and Management of Distributed Data: NGN, Content-Centric Networks and the Web, 2016
Giovanni Bartolomeo, Tatiana Kováčiková
The body consists of one or more expressions separated by a comma. Different kinds of expression are allowed including XPath expressions—each valid XPath expression is also a valid query in XQuery— and FLWOR (pronounced “flower”) expressions.
Personalized file data query matching method based on SOA
Published in International Journal of Computers and Applications, 2021
XPath and XQuery are the main query languages for XML document queries. XQuery is built on top of XPath expressions. They are based on the twig pattern query. XPath uses an axis to define a set of nodes relative to the current node, including the child axis ‘/’ (select all the child elements of the current node), descendant axis ‘//’ (select all descendant elements of the current node), and wildcards ‘*’ (matches any element node).