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    Requirements specification for a temporal extension to the relational model

    Lorentzos, N.A. and Johnson, Roger (1988) Requirements specification for a temporal extension to the relational model. A Quarterly Bulletin of the IEEE Computer Society Technical Committee on Data Engineering 11 (4), pp. 26-33.

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    Abstract

    A set of properties is identified, which should be satisfied by a temporal extension to the relational model. During the process of identifying these proper ties it is initially shown that certain semantic problems arise if time is treated as a means of stamping data in temporal databases. To overcome the problems encountered, it is next shown that a more general extension to the relational model needs to be made to define a model in which a generic interval is sup ported as a primitive data type. This extension has many practical applications. Furthermore, since a time-interval is the only type of interval which is used in temporal databases, the management of temporal data is shown to be one of the applications of this general model.

    Metadata

    Item Type: Article
    School: School of Business, Economics & Informatics > Computer Science and Information Systems
    Depositing User: Sarah Hall
    Date Deposited: 27 Apr 2021 20:47
    Last Modified: 27 Apr 2021 20:47
    URI: https://eprints.bbk.ac.uk/id/eprint/44015

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