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作者:

Liao, Husheng (Liao, Husheng.) (学者:廖湖声) | Gao, Hongyu (Gao, Hongyu.) | Guan, Zhaoning (Guan, Zhaoning.)

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摘要:

XQuery is a language for querying XML data which is widely used on the Internet. In XQuery, user can define recursive functions for querying and processing XML data. XML twig pattern query is considered as core operation for querying XML data which has been studied intensively in recent years. More powerful recursive queries can be achieved via combining user-defined recursive function and twig pattern query. This paper proposes recursive twig pattern query (RTPQ) to extend traditional twig pattern query with recursion and an effective holistic twig matching algorithm for RTPQ. With the help of RTPQ, recursive function call can access its result instead of evaluating local twig pattern queries in each calling. Results of experiments show that this approach can improve query efficiency and eliminate redundant intermediate results. © 2014 SERSC.

关键词:

Data handling Recursive functions XML

作者机构:

  • [ 1 ] [Liao, Husheng]Beijing University of Technology, Beijing, China
  • [ 2 ] [Gao, Hongyu]Beijing University of Technology, Beijing, China
  • [ 3 ] [Guan, Zhaoning]Beijing University of Technology, Beijing, China

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来源 :

International Journal of Database Theory and Application

ISSN: 2005-4270

年份: 2014

期: 3

卷: 7

页码: 179-190

被引次数:

WoS核心集被引频次: 0

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ESI高被引论文在榜: 0 展开所有

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近30日浏览量: 1

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