On the equivalence and rewriting of aggregate queries

DOI10.1007/s00236-004-0101-yzbMath1066.68035OpenAlexW2049233281MaRDI QIDQ1889881

Stéphane Grumbach, Leonardo Tininini, Maurizio Rafanelli

Publication date: 13 December 2004

Published in: Acta Informatica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00236-004-0101-y

zbMATH Keywords

conjunctive queriesdatabase queriesaggregate queriesaggregate view usabilityequivalence of queriesisomorphism modulo productlinear expansion

Mathematics Subject Classification ID

Database theory (68P15) Logic in computer science (03B70)

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Aggregate operators in constraint query languages ⋮ View selection for real conjunctive queries

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