An XML Query Processing Model based on XML View Tree

Chaiyoung Jung; HyunJu Kim

Journal of The Korea Society of Computer and Information

Abbr : JKSCI
2006, 11(5), pp.19-28
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science

Chaiyoung Jung ¹ , HyunJu Kim ²

¹ 진주산업대학교
² 경남과학기술대학교

ABSTRACT

This paper presents a query processing model in a wrapper based on the XML view tree. The query processing in a wrapper requires view composition, query translation into local sources, and generation of XML documents from local query results. We present a query processing model based on the view tree, where the XML views and the XML query is represented by the view tree. Since the view tree keeps the structure of a virtual XML document, it is easy to navigate the path expression. The view tree is also used as a template for schema generation and XML document generation as a query result. Moreover this conceptual uniform abstraction for the XML view and the user query makes it easy to support a multi-level XML view and to implement our composition mechanism.
KEYWORDS

XML , XML 뷰(XML View) , XML 뷰 트리(XML View Tree) , 사용자 정의 XML 뷰(User-defined XML View) , XML 질의처리(XML Query Processing) , 데이터베이스(Database) , 랩퍼(Wrapper)
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