A Global XQuery Query Processing based on Local XQuery Query Generation (지역 질의 생성기반 전역 XQuery 질의 처리 기법)

Jong-Hyun Park (박종현); Wonik Park (박원익); Young-Kuk Kim (김영국); Kang， Ji-Hoon (강지훈)

A Global XQuery Query Processing based on Local XQuery Query Generation

Journal of The Korea Society of Computer and Information
Abbr : JKSCI
2010, 15(11), pp.11-20
Publisher : The Korean Society Of Computer And Information
Research Area : Engineering > Computer Science

Jong-Hyun Park ¹, Wonik Park ², Young-Kuk Kim ², Kang， Ji-Hoon ²

¹Kyushu University, JAPAN
²충남대학교

Accredited

ABSTRACT

XML view is proposed to integrate between XML data and heterogeneous data over distributed environment and global XML view is used to search distributed heterogeneous data. At this time, standard query language for user is XQuery and the method for processing global XQuery queries over distributed environment is one of the new research topics. One of the basic and simple methods to process distributed SQL queries is that generates local queries for processing a global query and constructs the result of the global query from the results of the local queries. However, the syntax of XQuery differs from SQL because the XQuery contains some special expressions like FOR clauses for querying to semi-structured data, of course, FOR clauses are not used in SQL. Therefore, there are some problems to adopt the method for processing global SQL queries for generating local XQuery queries. This paper defines some problems when generates local XQuery queries for processing global XQuery queries and proposes a method for generating local XQuery queries considered these problems. Also we implement and evaluate a Global XQuery Processor which uses our method.

KEYWORDS

Query 분할(XQuery Decomposition), 전역 XQuery 처리(Global XQuery processing), 분산된 이종 데이터 검색(Searching of distributed heterogeneous data)

Citation status

* References for papers published after 2023 are currently being built.

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Journal Central

Journal of The Korea Society of Computer and Information 2023 KCI Impact Factor : 0.65