From structured documents to novel query facilities
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Lore: a database management system for semistructured data
ACM SIGMOD Record
XRel: a path-based approach to storage and retrieval of XML documents using relational databases
ACM Transactions on Internet Technology (TOIT)
Path materialization revisited: an efficient storage model for XML data
ADC '02 Proceedings of the 13th Australasian database conference - Volume 5
XML Data Management: Native XML and XML Enabled DataBase Systems
XML Data Management: Native XML and XML Enabled DataBase Systems
Relational Databases for Querying XML Documents: Limitations and Opportunities
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Maintaining order in a linked list
STOC '82 Proceedings of the fourteenth annual ACM symposium on Theory of computing
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Relevance measures for XML information retrieval
International Journal of Web and Grid Services
Supporting XPath axes with relational databases using a proxy index
XSym'05 Proceedings of the Third international conference on Database and XML Technologies
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Structural joins, i.e., operations that determine all occurrences of parent/child or ancestor/descendant relationships between node sets, are at the heart of XML management systems. To perform these joins, the systems exploit the information about the nested relationships between elements, attributes, and pieces of text in XML documents. Since performing the structural joins is often the most time-consuming phase in query evaluation, the method chosen to model the nested relationships has a considerable impact on the overall effectiveness of any XML management system. In this paper, we discuss four different methods for modeling the nested relationships using relational databases. We also propose a novel modeling method and present the results of our comprehensive performance experiments.