On representation and querying incomplete information in databases with bags

DOI10.1016/0020-0190(95)00154-5zbMath0875.68354OpenAlexW2123378463WikidataQ56214718 ScholiaQ56214718MaRDI QIDQ1350296

Limsoon Wong, Leonid O. Libkin

Publication date: 27 February 1997

Published in: Information Processing Letters (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0020-0190(95)00154-5

zbMATH Keywords

DatabasesQuery languagesIncomplete informationExpressive power

Mathematics Subject Classification ID

Database theory (68P15)

Related Items (3)

Query languages for bags and aggregate functions ⋮ Models of approximation in databases ⋮ Local properties of query languages

Cites Work

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• Using powerdomains to generalize relational databases
• The problem of incomplete information in relational databases
• Conservativity of nested relational calculi with internal generic functions
• Towards tractable algebras for bags
• Incomplete Information in Relational Databases

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