418 search results - page 46 / 84 » Query Processing on Multi-Core Architectures |
BNCOD
2003
13 years 9 months ago
2003
The DynaQuest-Framework should reduce the effort for the creation of Internet-based virtual databases. These virtual databases are a special kind of federated database systems whe...
SIGMOD
2009
ACM
14 years 2 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...
MIDDLEWARE
2004
Springer
14 years 1 months ago
2004
Springer
The Internet provides a wealth of useful information in a vast number of dynamic information sources, but it is difficult to determine which sources are useful for a given query. ...
PVLDB
2010
13 years 6 months ago
2010
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
DKE
2008
13 years 7 months ago
2008
The availability of large amounts of heterogeneous distributed web data necessitates the integration of XML data from multiple XML sources for many reasons. For example, currently,...