363 search results - page 3 / 73 » Analyzing Plan Diagrams of Database Query Optimizers |
PODS
2004
ACM
14 years 5 months ago
2004
ACM
SIGMOD
2003
ACM
14 years 5 months ago
2003
ACM
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
DEBU
2008
13 years 5 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...
VLDB
2004
ACM
13 years 10 months ago
2004
ACM
PLASTIC [1] is a recently-proposed tool to help query optimizers significantly amortize optimization overheads through a technique of plan recycling. The tool groups similar quer...
VLDB
2002
ACM
13 years 5 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...