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» Groupwise Processing of Relational Queries
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ADBIS
2004
Springer
125views Database» more  ADBIS 2004»
15 years 3 months ago
Using XSLT Stylesheets to Transform XPath Queries
Abstract. Often, XML documents stored in an XML database must be transformed by an XSL processor into a client-specific format before queries are submitted. In applications where X...
Sven Groppe, Stefan Böttcher, Reiko Heckel, G...
VLDB
1994
ACM
128views Database» more  VLDB 1994»
15 years 1 months ago
From Nested-Loop to Join Queries in OODB
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
Hennie J. Steenhagen, Peter M. G. Apers, Henk M. B...
PODS
2010
ACM
249views Database» more  PODS 2010»
15 years 3 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
ICDE
2010
IEEE
292views Database» more  ICDE 2010»
15 years 9 months ago
Exploring Power-Performance Tradeoffs in Database Systems
With the total energy consumption of computing systems increasing in a steep rate, much attention has been paid to the design of energy-efficient computing systems and applications...
Zichen Xu, Yi-Cheng Tu, Xiaorui Wang
TDM
2004
202views Database» more  TDM 2004»
14 years 11 months ago
Combining Indexing Schemes to Accelerate Querying XML on Content and Structure
This paper presents the advantages of combining multiple document representation schemes for query processing of XML queries on content and structure. We show how extending the Te...
Georgina Ramírez, Arjen P. de Vries