Querying XML effectively and efficiently using declarative languages such as XQuery and XPath has been widely studied in both academic and industrial settings. Most RDBMS vendors ...
Zhen Hua Liu, Muralidhar Krishnaprasad, James W. W...
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
Jingren Zhou, Johann Christoph Freytag, Per-Å...
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
Wook-Shin Han, Jack Ng, Volker Markl, Holger Kache...
Modern storage systems are sophisticated. Simple directattached storage devices are giving way to storage systems that are shared, flexible, virtualized and network-attached. Toda...
Oguzhan Ozmen, Kenneth Salem, Mustafa Uysal, M. Ho...
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...