2223 search results - page 39 / 445 » Query Optimization in an OODBMS |
110
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ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
140
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ICDE
2011
IEEE
14 years 3 months ago
2011
IEEE
— Array database systems are architected for scientific and engineering applications. In these applications, the value of a cell is often imprecise and uncertain. There are at le...
SIGMOD
2010
ACM
15 years 4 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
119
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CIKM
2005
Springer
15 years 5 months ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
IDEAS
1999
IEEE
15 years 4 months ago
1999
IEEE
The number of documents published via WWW in form of SGML/HTML has been rapidly growing for years. Efficient, declarative access mechanisms for this type of documents