721 search results - page 13 / 145 » Supporting top-k join queries in relational databases |
VLDB
1999
ACM
15 years 1 months ago
1999
ACM
Microsoft SQL Server was successful for many years for transaction processing and decision support workloads with neither merge join nor hash join, relying entirely on nested loop...
SSD
1999
Springer
15 years 1 months ago
1999
Springer
We provide an evaluation of query execution plans (QEP) in the case of queries with one or two spatial joins. The QEPs assume R -tree indexed relations and use a common set of spat...
110
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WIDM
2005
ACM
15 years 3 months ago
2005
ACM
In XML retrieval, two distinct approaches have been established and pursued without much cross-fertilization taking place so far. On the one hand, native XML databases tailored to...
122
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EDBT
1994
ACM
15 years 1 months ago
1994
ACM
Abstract. Good estimates of join result sizes are critical for query optimization in relational database management systems. We address the problem of incrementally obtaining accur...
ODBIS
2007
Springer
15 years 3 months ago
2007
Springer
Supporting SPARQL queries over relational databases becomes an active topic recently. However, it has not received enough consideration when SPARQL queries include restrictions on...