315 search results - page 20 / 63 » An Overview of Query Optimization in Relational Systems |
VLDB
2001
ACM
14 years 1 months ago
2001
ACM
imizer Communication using Abstract Plans in Sybase ASE Query optimizers are error prone, due to both their nature and the increased search space that modern query processing requ...
WEBDB
2000
Springer
14 years 5 days ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
PODS
2001
ACM
14 years 8 months ago
2001
ACM
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plan...
EDBT
2006
ACM
14 years 8 months ago
2006
ACM
Scientific data in the life sciences is distributed over various independent multi-format databases and is constantly expanding. We discuss a scenario where a life science research...
ECIR
2007
Springer
13 years 10 months ago
2007
Springer
The availability of a document’s logical structure in XML retrieval allows retrieval systems to return document portions (elements) instead of whole documents. This helps searche...