1142 search results - page 83 / 229 » On Supporting Containment Queries in Relational Database Man... |
125
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ICDT
2007
ACM
15 years 10 months ago
2007
ACM
Abstract. Information concerning the origin of data (that is, its provenance) is important in many areas, especially scientific recordkeeping. Currently, provenance information mu...
120
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EDBT
2009
ACM
15 years 8 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...
148
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SIGMOD
2002
ACM
16 years 4 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
209
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
Relational XQuery systems try to re-use mature relational data management infrastructures to create fast and scalable XML database technology. This paper describes the main featur...
151
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EDBT
2009
ACM
15 years 8 months ago
2009
ACM
Structured data including sets, sequences, trees and graphs, pose significant challenges to fundamental aspects of data management such as efficient storage, indexing, and simila...