101 search results - page 12 / 21 » Query optimization techniques for partitioned tables |
132
Voted
SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
135
Voted
SIGMOD
2004
ACM
16 years 2 months ago
2004
ACM
An effective query optimizer finds a query plan that exploits the characteristics of the source data. In data integration, little is known in advance about sources' propertie...
212
Voted
ICDE
2005
IEEE
16 years 3 months ago
2005
IEEE
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
134
Voted
ER
2008
Springer
15 years 4 months ago
2008
Springer
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...
137
Voted
WWW
2008
ACM
16 years 3 months ago
2008
ACM
Efficiently querying RDF [1] data is being an important factor in applying Semantic Web technologies to real-world applications. In this context, many efforts have been made to st...