Subscribe Now Subscribe Today
Science Alert
Curve Top
Information Technology Journal
  Year: 2007 | Volume: 6 | Issue: 5 | Page No.: 697-703
DOI: 10.3923/itj.2007.697.703
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Flexible and Effective Aggregation Operator for XML Data

Hongzhi Wang, Jianzhong Li and Hong Gao

XML is an important format of information exchange and representation. One of its features is that it has tag representing semantics and hierarchy structure. Based on these features, an extensive aggregation of operation of XML data, XAggregation, is represented in this research. XAggregation permits XPath expression decorating dimension property and measure property. With XAggregation, statistics of XML data becomes more flexible with function of aggregating heterogeneous data and hierarchy data along some path of XML. XAggregation could be embedded in query language of XML such as XQuery. In this study the definition of XAggregation is presented, as well as the semantics and application of it. Implementation of XAggregation based on native XML database with XML as tree structure is also designed.
PDF Fulltext XML References Citation Report Citation
  •    A Memory Path Index for DOM Tree Queries
  •    Customizable WEB UI of Based On Templates
How to cite this article:

Hongzhi Wang, Jianzhong Li and Hong Gao, 2007. Flexible and Effective Aggregation Operator for XML Data. Information Technology Journal, 6: 697-703.

DOI: 10.3923/itj.2007.697.703






Curve Bottom