116 search results - page 22 / 24 » Estimating Compilation Time of a Query Optimizer |
CODES
2007
IEEE
14 years 18 days ago
2007
IEEE
Caches are notorious for their unpredictability. It is difficult or even impossible to predict if a memory access results in a definite cache hit or miss. This unpredictability i...
VLDB
2002
ACM
13 years 5 months ago
2002
ACM
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
DEBU
2008
13 years 6 months ago
2008
We present the SQL Performance Analyzer, a novel approach in Oracle Database 11g to testing database changes, such as upgrades, parameter changes, schema changes, and gathering op...
STOC
2001
ACM
14 years 6 months ago
2001
ACM
Histograms are typically used to approximate data distributions. Histograms and related synopsis structures have been successful in a wide variety of popular database applications...
KDD
1998
ACM
13 years 10 months ago
1998
ACM
This paper presents an algorithm for discovering conjunction rules with high reliability from data sets. The discovery of conjunction rules, each of which is a restricted form of ...