716 search results - page 21 / 144 » Optimizing Queries in Extended Relational Databases |
199
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ICDE
2006
IEEE
16 years 16 days ago
2006
IEEE
To effectively support today's global economy, database systems need to manage data in multiple languages simultaneously. While current database systems do support the storag...
ICDT
2005
ACM
15 years 4 months ago
2005
ACM
d abstract) Foto Afrati1 and Rada Chirkova2 1 Electrical and Computing Eng., National Technical University of Athens, 157 73 Athens, Greece 2 Computer Science Department, North Car...
SOFSEM
2004
Springer
15 years 4 months ago
2004
Springer
Abstract. Research on processing XML documents gained much activity in recent times. XML query languages are mostly based on XPath expressions, which are used to select parts of XM...
201
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ICDE
1995
IEEE
16 years 15 days ago
1995
IEEE
We describe set-oriented algorithms for mining association rules. Such algorithms imply performing multiple joins and may appear to be inherently less escient than special-purpose...
JAPLL
2010
14 years 9 months ago
2010
The relational model has recently been extended to so-called K-relations in which tuples are assigned a unique value in a semiring K. A query language, denoted by RAC K , similar ...