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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/40085


    Title: The Exclusive-or Disjunctive Information in Relational Databases
    Authors: 施建州;Shih, Chien-chou;蔣定安;Chiang, Ding-an;高文星;Kao, Wen-hsing
    Contributors: 淡江大學資訊傳播學系
    Keywords: disjunctive information;incomplete information;well-defined relational algebra;relational database;uniquely determined
    Date: 2004-09
    Issue Date: 2010-01-27 17:02:14 (UTC+8)
    Publisher: Institute of Information Science
    Abstract: In this paper, we propose an extended relational model to accommodate exclusive-or disjunctive information. The proposed model is defined by first-order logic. The answers to a query contain both sure answers and maybe answers. To guarantee that the manipulation power of the proposed model is as good as that of the classical relational model, we prove that the classical properties of the database, uniquely determined and well-defined relational algebra, are preserved in our proposed model.
    Relation: Journal of Information Science and Engineering 20(5), p.981-999
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Journal Article
    [Graduate Institute & Department of Information and Communication] Journal Article

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