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» A framework for user-interfaces to databases
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EDBT
2006
ACM
106views Database» more  EDBT 2006»
16 years 6 months ago
Online, Non-blocking Relational Schema Changes
A database schema should be able to evolve to reflect changes to the universe it represents. In existing systems, user transactions get blocked during complex schema transformation...
Jørgen Løland, Svein-Olaf Hvasshovd
SSDBM
1997
IEEE
96views Database» more  SSDBM 1997»
15 years 10 months ago
Summarizability in OLAP and Statistical Data Bases
Summarizability of OLAP and Statistical Databases is an a extremely important property because violating this condition can lead to erroneous conclusions and decisions. In this pa...
Hans-Joachim Lenz, Arie Shoshani
ADC
2003
Springer
101views Database» more  ADC 2003»
15 years 12 months ago
Operational Semantics of Transactions
Mathematics is forcing towards a consistent framework of theory development. Computer Science is an engineering discipline and sometimes suffers from ad-hoc definitions. Transac...
Andreas Prinz, Bernhard Thalheim
DEXAW
1996
IEEE
79views Database» more  DEXAW 1996»
15 years 10 months ago
Managing Multiple Representations of Georeferenced Elements
This paper presents a framework for the management of multiple representations of georeferenced elements in a GIS environment. This solution is presented from a database perspecti...
Claudia Bauzer Medeiros, Marie-Jo Bellosta, Genevi...
VLDB
1989
ACM
88views Database» more  VLDB 1989»
15 years 10 months ago
Estimating the Size of Generalized Transitive Closures
We present a framework for the estimation of the size of binary recursively defined relations. We show how the framework can be used to provide estimating algo rithms for the size...
Richard J. Lipton, Jeffrey F. Naughton