6004 search results - page 191 / 1201 » Parallelizing query optimization |
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
ICEBE
2005
IEEE
14 years 3 months ago
2005
IEEE
Electronic commerce is emerging as a major application area for database systems. A large number of e-commerce stores provide electronic product catalogs that allow customers to s...
PPDP
2010
Springer
13 years 8 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
GVD
2009
13 years 8 months ago
2009
The upcoming generation of computer hardware poses several new challenges for database developers and engineers. Software in general and database management systems (DBMSs) in par...
HPDC
2010
IEEE
13 years 11 months ago
2010
IEEE
This paper proposes a cache hierarchy that enables Web search engines to efficiently process user queries. The different caches in the hierarchy are used to store pieces of data w...