Efficient storage of XML data

Kanne, Carl-Christian ; Moerkotte, Guido

1999_08.pdf - Published

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URL: https://ub-madoc.bib.uni-mannheim.de/2059
URN: urn:nbn:de:bsz:180-madoc-20594
Document Type: Working paper
Year of publication: 1999
The title of a journal, publication series: Technical Reports
Volume: 99-008
Place of publication: Mannheim
Publication language: English
Institution: School of Business Informatics and Mathematics > Sonstige - Fakultät für Wirtschaftsinformatik und Wirtschaftsmathematik
MADOC publication series: Veröffentlichungen der Fakultät für Mathematik und Informatik > Institut für Informatik > Technical Reports
Subject: 004 Computer science, internet
Subject headings (SWD): XML , Datenspeicherung
Abstract: We introduce NATIX, an efficient, native repository for storing, retrieving and managing tree-structured large objects, preferably XML documents. In contrast to traditionallarge object (LOB) managers, we do not split at arbitrary byte positions but take the semantics of the underlying tree structure of XML documents into account. Our parameterizable split algorithm dynamically maintains physical records of size smaller than a page which contain sets of connected tree nodes. This not only improves efficiency by clustering subtrees but also facilitates their compact representation. Existing approaches to store XML documents either use flat files or map every single tree node onto a separate physical record. The increased flexibility of our approach results in higher efficiency. Performance measurements validate this claim.
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