716 search results - page 120 / 144 » Optimizing Queries in Extended Relational Databases |
BMCBI
2008
14 years 11 months ago
2008
Background: The ESTree database (db) is a collection of Prunus persica and Prunus dulcis EST sequences that in its current version encompasses 75,404 sequences from 3 almond and 1...
DATESO
2007
15 years 19 days ago
2007
We address a problem of updating XML documents having their XML schema described by a Document Type Definition (DTD) without breaking their validity. We present a way how to expre...
115
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WISE
2007
Springer
15 years 5 months ago
2007
Springer
We study and present our findings on two closely related problems on xpath rewriting using views when both the view and the query are tree patterns involving /,// and []. First, g...
109
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WWW
2008
ACM
14 years 11 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...
184
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ICDE
1998
IEEE
16 years 16 days ago
1998
IEEE
Discovery of functionaldependencies from relations has been identified as an important database analysis technique. In this paper, we present a new approach for finding functional...