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» Query Optimization In Compressed Database Systems
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SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
14 years 7 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...
SIGMOD
2005
ACM
228views Database» more  SIGMOD 2005»
14 years 7 months ago
ConQuer: Efficient Management of Inconsistent Databases
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
Ariel Fuxman, Elham Fazli, Renée J. Miller
CASES
2004
ACM
13 years 11 months ago
Reducing energy consumption of queries in memory-resident database systems
The tremendous growth of system memories has increased the capacities and capabilities of memory-resident embedded databases, yet current embedded databases need to be tuned in or...
Jayaprakash Pisharath, Alok N. Choudhary, Mahmut T...
ADBIS
2005
Springer
116views Database» more  ADBIS 2005»
14 years 1 months ago
A Formal Model for the Problem of View Selection for Aggregate Queries
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
Jingni Li, Zohreh Asgharzadeh Talebi, Rada Chirkov...
VLDB
2007
ACM
128views Database» more  VLDB 2007»
14 years 1 months ago
A genetic approach for random testing of database systems
Testing a database engine has been and continues to be a challenging task. The space of possible SQL queries along with their possible access paths is practically unbounded. Moreo...
Hardik Bati, Leo Giakoumakis, Steve Herbert, Aleks...