708 search results - page 73 / 142 » A Genetic Algorithm for Database Query Optimization |
SIGMOD
2012
ACM
11 years 11 months ago
2012
ACM
There exists a need for high performance, read-only mainmemory database systems for OLAP-style application scenarios. Most of the existing works in this area are centered around t...
PODS
2011
ACM
12 years 11 months ago
2011
ACM
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
ERSHOV
2006
Springer
14 years 17 days ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
PODS
2005
ACM
14 years 9 months ago
2005
ACM
We consider query optimization techniques for data intensive P2P applications. We show how to adapt an old technique from deductive databases, namely Query-Sub-Query (QSQ), to a s...
AMW
2009
13 years 10 months ago
2009
Abstract. The chase procedure, an algorithm proposed 25+ years ago to fix constraint violations in database instances, has been successfully applied in a variety of contexts, such ...