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» Reducing Order Enforcement Cost in Complex Query Plans
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VLDB
2001
ACM
190views Database» more  VLDB 2001»
14 years 2 months ago
LEO - DB2's LEarning Optimizer
Most modern DBMS optimizers rely upon a cost model to choose the best query execution plan (QEP) for any given query. Cost estimates are heavily dependent upon the optimizer’s e...
Michael Stillger, Guy M. Lohman, Volker Markl, Mok...
ETRICS
2006
14 years 1 months ago
Optimized Workflow Authorization in Service Oriented Architectures
Abstract. Complex business processes are usually realized by specifying the integration and interaction of smaller modular software components. For example, hitherto monolithic ent...
Martin Wimmer, Martina-Cezara Albutiu, Alfons Kemp...
SIGMOD
2004
ACM
147views Database» more  SIGMOD 2004»
14 years 10 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,...
PVLDB
2008
81views more  PVLDB 2008»
13 years 9 months ago
Optimization of multi-domain queries on the web
Where can I attend an interesting database workshop close to a sunny beach? Who are the strongest experts on service computing based upon their recent publication record and accep...
Daniele Braga, Stefano Ceri, Florian Daniel, David...
JCP
2008
142views more  JCP 2008»
13 years 9 months ago
QoS Aware Query Processing Algorithm for Wireless Sensor Networks
In sensor networks, continuous query is commonly used for collecting periodical data from the objects under monitoring. This sort of queries needs to be carefully designed, in orde...
Jun-Zhao Sun