716 search results - page 79 / 144 » Optimizing Queries in Extended Relational Databases |
105
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ADC
2003
Springer
15 years 4 months ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
MTA
2010
14 years 9 months ago
2010
: Multimedia applications nowadays are becoming prevalent. In the past the relational database model was generalized to the multimedia database model. More recently the relational ...
PVLDB
2010
14 years 9 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
101
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CIKM
2009
Springer
15 years 5 months ago
2009
Springer
XML query languages use directional path expressions to locate data in an XML data collection. They are tightly coupled to the structure of a data collection, and can fail when ev...
WWW
2002
ACM
15 years 12 months ago
2002
ACM
We present an algorithm for translating XSLT programs into SQL. Our context is that of virtual XML publishing, in which a single XML view is defined from a relational database, an...