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» Semantics of Database Transformations
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VLDB
2000
ACM
151views Database» more  VLDB 2000»
15 years 10 months ago
The TreeScape System: Reuse of Pre-Computed Aggregates over Irregular OLAP Hierarchies
We present the TreeScape system that, unlike any other system known to the authors, enables the reuse of pre-computed aggregate query results for irregular dimension hierarchies, ...
Torben Bach Pedersen, Christian S. Jensen, Curtis ...
DASFAA
2010
IEEE
195views Database» more  DASFAA 2010»
15 years 10 months ago
BIDEL: An XML-Based System for Effective Fast Change Detection of Genomic and Proteomic Data
Abstract. A key issue to address in biological data integration is how to detect changes to the underlying biological data sources. In this demonstration, we present a novel system...
Song Yang, Sourav S. Bhowmick
DEXAW
2008
IEEE
114views Database» more  DEXAW 2008»
15 years 8 months ago
Management of User-Defined Meta Information for Virtual Product Development
Virtual product development puts high demands on data management solutions due to many dependent heterogeneous data sources, automatic data transformations, and fast changing requ...
Ingolf Geist, Stephan Vornholt
ADC
2007
Springer
164views Database» more  ADC 2007»
16 years 28 days ago
Computer Assisted Assessment of SQL Query Skills
Structured Query Language (SQL) is the dominant language for querying relational databases today, and is an essential topic in introductory database courses in higher education. E...
Stijn Dekeyser, Michael de Raadt, Tien Yu Lee
DASFAA
2009
IEEE
173views Database» more  DASFAA 2009»
15 years 10 months ago
A Uniform Framework for Ad-Hoc Indexes to Answer Reachability Queries on Large Graphs
Graph-structured databases and related problems such as reachability query processing have been increasingly relevant to many applications such as XML databases, biological databas...
Linhong Zhu, Byron Choi, Bingsheng He, Jeffrey Xu ...