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EUROPAR
2001
Springer
15 years 3 months ago
2001
Springer
Abstract. Parallel relational databases have been successful in providing scalable performance for data intensive applications, and much work has been carried out on query processi...
PODS
2006
ACM
15 years 11 months ago
2006
ACM
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
SIGMOD
2002
ACM
15 years 11 months ago
2002
ACM
We present a continuously adaptive, continuous query (CACQ) implementation based on the eddy query processing framework. We show that our design provides significant performance b...
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CCS
2008
ACM
15 years 1 months ago
2008
ACM
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
SIGMOD
2002
ACM
15 years 11 months ago
2002
ACM
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...