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Linear vs Polynomial Constraints in Database Query Languages

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dc.contributor.author Afrati, F en
dc.contributor.author Cosmadakis, S en
dc.contributor.author Grumbach, S en
dc.contributor.author Kuper, G en
dc.date.accessioned 2014-03-01T02:48:14Z
dc.date.available 2014-03-01T02:48:14Z
dc.date.issued 1994 en
dc.identifier.uri http://hdl.handle.net/123456789/33655
dc.subject Database Query en
dc.subject Expressive Power en
dc.subject Linear Constraint en
dc.title Linear vs Polynomial Constraints in Database Query Languages en
heal.type conferenceItem en
heal.identifier.primary 10.1007/3-540-58601-6_100 en
heal.identifier.secondary http://dx.doi.org/10.1007/3-540-58601-6_100 en
heal.publicationDate 1994 en
heal.abstract We prove positive and negative results on the expressive power of the relational calculusaugmented with linear constraints. We show non-expressibility of some properties expressedby polynomial constraints. We also show expressibility of some queries involving existenceof lines, when the query output has a simple geometrical relation to the input. Finally,we compare the expressive power of linear vs. polynomial constraints in the en
heal.journalName Principles and Practice of Constraint Programming en
dc.identifier.doi 10.1007/3-540-58601-6_100 en


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