GXQuery: Extending XQuery for Querying Graph-structured XML Data | Zendy

Hongzhi Wang | Zendy; Jianzhong Li | Zendy

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GXQuery: Extending XQuery for Querying Graph-structured XML Data

Author(s) -

Hongzhi Wang,

Jianzhong Li

Publication year - 2011

Publication title -

journal of computing and information technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.169

H-Index - 27

eISSN - 1846-3908

pISSN - 1330-1136

DOI - 10.2498/cit.1001006

Subject(s) - computer science , document structure description , xml schema editor , xml validation , streaming xml , efficient xml interchange , xml database , xquery , information retrieval , xml encryption , xml , xml schema (w3c) , relax ng , programming language , world wide web

XML data can be naturally modeled as a graph. Existing query languages to XML can only express queries of matching XML document with a tree-structured schema with structural and value constraints without the consideration of graph features. The ability of such query languages cannot satisfy various requirements of querying graph-structured XML data. In this paper, GXQuery is presented as an extension of XQuery, an XML query language recommended byW3C, to express more flexible query on graph-structured XML. GXQuery expressions can match XML documentwith graph-structured schema with not only structural and value constraints, but also topological constraints

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