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PVLDB
2008
167views more  PVLDB 2008»
13 years 4 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
DKE
2006
79views more  DKE 2006»
13 years 4 months ago
Schema versioning in data warehouses: Enabling cross-version querying via schema augmentation
As several mature implementations of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is played by the ability to manage the chang...
Matteo Golfarelli, Jens Lechtenbörger, Stefan...
ADC
2000
Springer
98views Database» more  ADC 2000»
13 years 9 months ago
A Generalized Modeling Framework for Schema Versioning Support
Advanced object-oriented applications require the management of schema versions, in order to cope with changes in the structure of the stored data. Two types of versioning have be...
Fabio Grandi, Federica Mandreoli, Maria Rita Scala...