A transaction model for XML databases

Article


Dekeyser, Stijn, Hidders, Jan and Paredaens, Jan. 2004. "A transaction model for XML databases." World Wide Web. 7 (1), pp. 29-57. https://doi.org/10.1023/B:WWWJ.0000015864.75561.98
Article Title

A transaction model for XML databases

ERA Journal ID32110
Article CategoryArticle
AuthorsDekeyser, Stijn (Author), Hidders, Jan (Author) and Paredaens, Jan (Author)
Journal TitleWorld Wide Web
Journal Citation7 (1), pp. 29-57
Number of Pages28
Year2004
Place of PublicationUnited States
ISSN1386-145X
1573-1413
Digital Object Identifier (DOI)https://doi.org/10.1023/B:WWWJ.0000015864.75561.98
Web Address (URL)https://link.springer.com/article/10.1023/B:WWWJ.0000015864.75561.98
Abstract

The hierarchical and semistructured nature of XML data may cause complicated update behavior. Updates should not be limited to entire document trees, but should ideally involve subtrees and even individual elements. Providing a suitable scheduling algorithm for semistructured data can significantly improve collaboration systems that store their data - e.g., word processing documents or vector graphics - as XML documents. In this paper we show that concurrency control mechanisms in CVS, relational, and object-oriented database systems are inadequate for collaborative systems based on semistructured data. We therefore propose two new locking schemes based on path locks which are tightly coupled to the document instance. We also introduce two scheduling algorithms that can both be used with any of the two proposed path lock schemes. We prove that both schedulers guarantee serializability, and show that the conflict rules are necessary.

KeywordsXML; concurrency control; path lock; scheduler; semistructured data; serializability
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020460599. Data management and data science not elsewhere classified
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Byline AffiliationsDepartment of Mathematics and Computing
University of Antwerp, Belgium
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