867 search results - page 58 / 174 » SQL Server 2005 |
185
Voted
ICDE
1999
IEEE
16 years 3 months ago
1999
IEEE
Indexes play a vital role in decision support systems by reducing the cost of answering complex queries. A popular methodology for choosing indexes that is adopted by database adm...
211
Voted
VLDB
2007
ACM
16 years 2 months ago
2007
ACM
The database community is on a constant quest for better integration of data management and knowledge management. Recently, with the increasing use of ontology in various applicat...
191
Voted
SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
190
click to vote
SIGMOD
2007
ACM
16 years 2 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...
205
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
Integration systems typically support only a restricted set of queries over the schema they export. The reason is that the participating information sources contribute limited con...