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» Visualizing the robustness of query execution
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SIGMOD
2004
ACM
147views Database» more  SIGMOD 2004»
11 years 2 months ago
Robust Query Processing through Progressive Optimization
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
Volker Markl, Vijayshankar Raman, David E. Simmen,...
SIGMOD
2007
ACM
169views Database» more  SIGMOD 2007»
11 years 2 months ago
ConEx: a system for monitoring queries
We present a system, ConEx, for monitoring query execution in a relational database management system. ConEx offers a unified view of query execution, providing continuous visual ...
Chaitanya Mishra, Maksims Volkovs
VL
2005
IEEE
135views Visual Languages» more  VL 2005»
10 years 8 months ago
HyperFlow: An Integrated Visual Query and Dataflow Language for End-User Information Analysis
We present HyperFlow, a novel visual language for information analysis that combines features from visual dataflow and visual query languages into a unified framework. HyperFlow i...
Dolev Dotan, Ron Y. Pinter
COMPGEOM
1997
ACM
10 years 7 months ago
Robust Proximity Queries: An Illustration of Degree-Driven Algorithm Design
Abstract. In the context of methodologies intended to confer robustness to geometric algorithms, we elaborate on the exact-computation paradigm and formalize the notion of degree o...
Giuseppe Liotta, Franco P. Preparata, Roberto Tama...
SIGMOD
2004
ACM
105views Database» more  SIGMOD 2004»
11 years 2 months ago
Query Processing for SQL Updates
A rich set of concepts and techniques has been developed in the context of query processing for the efficient and robust execution of queries. So far, this work has mostly focused...
César A. Galindo-Legaria, Stefano Stefani, ...
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