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DMDW
2000
101views Management» more  DMDW 2000»
15 years 7 months ago
Metadata for object-relational data warehouse
For developing data warehouse (DW) and OnLine Analytical Processing (OLAP) systems, the dominant relational database reaches its limitations. On the way of the development, object...
Thanh N. Huynh, Oscar Mangisengi, A. Min Tjoa
ICDT
2012
ACM
226views Database» more  ICDT 2012»
13 years 8 months ago
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
Dan Olteanu, Jakub Zavodny
ER
1995
Springer
120views Database» more  ER 1995»
15 years 9 months ago
Semantics of Time-Varying Attributes and their Use for Temporal Database Design
Based on a systematic study of the semantics of temporal attributes of entities, this paper provides new guidelines for the design of temporal relational databases. The notions of ...
Christian S. Jensen, Richard T. Snodgrass
DATASCIENCE
2002
88views more  DATASCIENCE 2002»
15 years 6 months ago
Development of the web-based NIST X-ray Photoelectron Spectroscopy (XPS) Database
The first Web-based version of the NIST X-ray Photoelectron Spectroscopy Database (XPSDB) is described. The current database, built from a relational database management system (R...
Angela Y. Lee, Dorothy M. Blakeslee, Cedric J. Pow...
CLUSTER
2002
IEEE
15 years 11 months ago
Cluster Based Hybrid Hash Join: Analysis and Evaluation
The join is the most important, but also the most time consuming operation in relational database systems. We implemented the parallel Hybrid Hash Join algorithm on a PC-cluster a...
Erich Schikuta, Peter Kirkovits