AN EXTENDED RELATIONAL DATA MODEL AND SQL SUBSET WITH SUPPORT FOR CONTAINMENT, COMPOSITE STRUCTURES AND INHERITANCE

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dc.contributor.authorBradley, J.eng
dc.date.accessioned2008-02-27T23:01:05Z
dc.date.available2008-02-27T23:01:05Z
dc.date.computerscience1999-05-27eng
dc.date.issued1996-12-01eng
dc.description.abstractAn extended relational data base model and SQL subset is described. The data model is fully relational. It allows unnormalized relations only where attributes are sets or lists of atomic attributes. There is support for both inheritance and composite entities. A composite structre can be stored by decomposition into sets of tuples stores in relations but can also be stored virtually as a view. Composite structures, including OOPL objects, can be transferred directly between database system and program variables. Manipulation languages are an extended SQL and a separate new SQL language subset for efficient manipulation of containment structures, whose manipulation with SQL is error-prone. The language subset has a predicate calculus expression structure, but allows the use of genitive relations to model containment relationships and facilitate application of natural quantifiers to containment sets. Range variables are allowed and can range over genitive relations as well as base tables.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.department1996-597-17eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/30416
dc.identifier.urihttp://hdl.handle.net/1880/46317
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleAN EXTENDED RELATIONAL DATA MODEL AND SQL SUBSET WITH SUPPORT FOR CONTAINMENT, COMPOSITE STRUCTURES AND INHERITANCEeng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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