EXTENDED RELATIONAL ALGEBRA FOR REDUCTION OF NATURAL QUANTIFIER COOL EXPRESSIONS

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dc.contributor.authorBradley, Jameseng
dc.date.accessioned2008-02-27T23:00:29Z
dc.date.available2008-02-27T23:00:29Z
dc.date.computerscience1999-05-27eng
dc.date.issued1994-05-01eng
dc.description.abstractAn extended relational algebra has been developed. This extended algebra is suitable for reduction of expressions written in the object-oriented natural quantifier language COOL. The algebra consists of conventional operations plus a group select, a subgroup select and possibility join operation. The group select operation selects each group of related tuples where a quantity of the group obeys a condition. The subgroup select operation selects each group of related tuples where a quantity of a subgroup of the group obeys a condition. The possibility join of relation R1 with relation R2 regenerates relation R1 but with each tuple having a logical attribute p concatenated, with p true where the R1 tupple could have been joined to an R2 tuple, otherwise p false. Generalized algebra routines for generalized COOL expressions are presented.eng
dc.description.notesWe are currently acquiring citations for the work deposited into this collection. We recognize the distribution rights of this item may have been assigned to another entity, other than the author(s) of the work.If you can provide the citation for this work or you think you own the distribution rights to this work please contact the Institutional Repository Administrator at digitize@ucalgary.caeng
dc.identifier.department1994-540-09eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/30437
dc.identifier.urihttp://hdl.handle.net/1880/46310
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleEXTENDED RELATIONAL ALGEBRA FOR REDUCTION OF NATURAL QUANTIFIER COOL EXPRESSIONSeng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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