6746 search results - page 326 / 1350 » Multimodal Database Query |
175
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CORR
2011
Springer
14 years 11 months ago
2011
Springer
We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggr...
269
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ICDE
2009
IEEE
16 years 6 months ago
2009
IEEE
A common approach to performing keyword search over relational databases is to find the minimum Steiner trees in database graphs. These methods, however, are rather expensive as th...
238
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
Databases are increasingly being used to store information covered by heterogeneous policies, which require support for access control with great flexibility. This has led to incr...
149
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
Abstract-- This paper introduces a deterministic approximation algorithm with error guarantees for computing the probability of propositional formulas over discrete random variable...
135
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
—Database developers today use data access APIs such as ADO.NET to execute SQL queries from their application. These applications often have security problems such as SQL injecti...