409 search results - page 55 / 82 » Plan Databases: Model and Algebra |
ICDE
2010
IEEE
15 years 4 months ago
2010
IEEE
— While planning the execution of report-generation workloads, database administrators often need to know how long different query workloads will take to run. Database systems ru...
132
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SSD
2007
Springer
15 years 5 months ago
2007
Springer
We address continuously processing an aggregation join query over data streams. Queries of this type involve both join and aggregation operations, with windows specified on join ...
111
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SIGMOD
2003
ACM
15 years 12 months ago
2003
ACM
Recent years witnessed an increasing interest in researches in XML, partly due to the fact that XML has now become the de facto standard for data interchange over the internet. A ...
108
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ICDE
2012
IEEE
13 years 2 months ago
2012
IEEE
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
SSDBM
2003
IEEE
15 years 5 months ago
2003
IEEE
It is now common to encounter communities engaged in the collaborative analysis and transformation of large quantities of data over extended time periods. We argue that these comm...