A RECURSIVE RELATIONAL DATA BASE STRUCTURE FOR CHEMICAL PROCESS INFORMATION SYSTEMS

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dc.contributor.authorBradley, Jameseng
dc.date.accessioned2008-02-27T22:59:21Z
dc.date.available2008-02-27T22:59:21Z
dc.date.computerscience1999-05-27eng
dc.date.issued1990-12-01eng
dc.description.abstractA comprehensive relational data base structure for chemical processes is proposed. The data base can hold data about the physical attributes of chemical processes and about their reactants and products. By means of a recursive many-to-many relationship, involving a multivalued dependency, the data base also holds data about the breakdown of any process into its subprocesses, their subprocesses, and so on, to any desired breakdown level. The relational data base language SQL can be used. Current releases of SQL do not have facilities for recursive expressions, so that SQL retrieval expressions involving descent to unpredictable subprocess breakdown levels cannot be constructed. This difficulty can be circumvented by the use of multiple SQL expressions. Where molecular substructure data is also needed, then the chemical process data base can be used with a comprehensive relational molecular structure data base.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.department1990-416-40eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/30422
dc.identifier.urihttp://hdl.handle.net/1880/46296
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleA RECURSIVE RELATIONAL DATA BASE STRUCTURE FOR CHEMICAL PROCESS INFORMATION SYSTEMSeng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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