SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
On supporting containment queries in relational database management systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
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
Relational Databases for Querying XML Documents: Limitations and Opportunities
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Proceedings of the VLDB 2002 Workshop EEXTT and CAiSE 2002 Workshop DTWeb on Efficiency and Effectiveness of XML Tools and Techniques and Data Integration over the Web-Revised Papers
XMach-1: A Benchmark for XML Data Management
Datenbanksysteme in Büro, Technik und Wissenschaft (BTW), 9. GI-Fachtagung,
A comprehensive XQuery to SQL translation using dynamic interval encoding
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Recursive XML Schemas, Recursive XML Queries, and Relational Storage: XML-to-SQL Query Translation
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
XBench Benchmark and Performance Testing of XML DBMSs
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
What makes the differences: benchmarking XML database implementations
ACM Transactions on Internet Technology (TOIT)
Efficient recursive XML query processing using relational database systems
Data & Knowledge Engineering - Special issue: ER 2004
XMark: a benchmark for XML data management
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
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Several recent papers have investigated a relational approach to store XML data and there is a growing evidence that schema-conscious approaches are a better option than schema-oblivious techniques as far as query performance is concerned. This paper studies three strategies for storing XML document including one representing schema-conscious approach (Shared-Inlining) and two representing schema-oblivious approach (XParent and Sucxent++). We implement and evaluate each approach using benchmark non-recursive XQueries. Our analysis shows an interesting fact that schema-conscious approaches are not always a better option than schema-oblivious approaches! In fact, it is possible for a schema-oblivious approach (Sucxent++) to be faster than a schema-conscious approach (Shared-Inlining) for 55% of the benchmark queries (the highest observed factor being 87.8 times). Sucxent++ also outperforms XParent by up to 1700 times.