6004 search results - page 327 / 1201 » Parallelizing query optimization |
128
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WISE
2002
Springer
15 years 7 months ago
2002
Springer
To make the World Wide Web machine-understandable there is a strong demand both for languages describing metadata and for languages querying metadata. The Resource Description Fram...
148
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JACM
2008
15 years 2 months ago
2008
XML queries are usually expressed by means of XPath expressions identifying portions of the selected documents. An XPath expression defines a way of navigating an XML tree and ret...
142
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SIGMOD
2004
ACM
16 years 2 months ago
2004
ACM
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
140
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IDEAS
2009
IEEE
15 years 8 months ago
2009
IEEE
In this paper, we present our work on evaluating the skyline algorithms BNL, SFS, and a variant of LESS in PostgreSQL. It is well known that the performance of skyline queries is ...
145
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DBPL
1995
Springer
15 years 5 months ago
1995
Springer
Physical design for object-oriented databases is still in its infancy. Implementation decisions often intrude into the conceptual design (such as inverse links and object decompos...