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ICDT
2001
ACM
162views Database» more  ICDT 2001»
15 years 4 months ago
Algebraic Rewritings for Optimizing Regular Path Queries
Rewriting queries using views is a powerful technique that has applications in query optimization, data integration, data warehousing etc. Query rewriting in relational databases ...
Gösta Grahne, Alex Thomo
DOLAP
2000
ACM
15 years 4 months ago
Incremental Update to Aggregated Information for Data Warehouses over Internet
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
Miranda Chan, Hong Va Leong, Antonio Si
ICDE
2010
IEEE
206views Database» more  ICDE 2010»
15 years 1 months ago
HECATAEUS: Regulating Schema Evolution
HECATAEUS is an open-source software tool for enabling impact prediction, what-if analysis, and regulation of relational database schema evolution. We follow a graph theoretic appr...
George Papastefanatos, Panos Vassiliadis, Alkis Si...
SIGMOD
2004
ACM
160views Database» more  SIGMOD 2004»
15 years 12 months ago
Extending Query Rewriting Techniques for Fine-Grained Access Control
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...
NSDI
2007
15 years 2 months ago
X-Trace: A Pervasive Network Tracing Framework
Modern Internet systems often combine different applications (e.g., DNS, web, and database), span different administrative domains, and function in the context of network mechanis...
Rodrigo Fonseca, George Porter, Randy H. Katz, Sco...