XML-GL: a graphical language for querying and restructuring XML documents
WWW '99 Proceedings of the eighth international conference on World Wide Web
GLASS: A Graphical Query Language for Semi-Structured Data
DASFAA '03 Proceedings of the Eighth International Conference on Database Systems for Advanced Applications
A Fast Tree Pattern Matching Algorithm for XML Query
WI '04 Proceedings of the 2004 IEEE/WIC/ACM International Conference on Web Intelligence
XQBE (XQuery By Example): A visual interface to the standard XML query language
ACM Transactions on Database Systems (TODS)
GQLX: a new graphical query language for XML data
Proceedings of the 11th International Conference on Information Integration and Web-based Applications & Services
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XML data are data which are not necessary constrained by a schema, XML is fast emerging as a standard for data representation and exchange on the World Wide Web, the ability to intelligently query XML data becomes increasingly important. Some XML graphical query languages for XML data have been proposed but they are either too complex or too limited in use. In this paper we propose a recursive graphical query language for querying and restructuring XML data. The expressive power of RGQLX is comparable to Fixpoint. RGQLX language is a multi-sorted graphical language integrating grouping, aggregate functions, nested queries and recursion.