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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/40085

    題名: The Exclusive-or Disjunctive Information in Relational Databases
    作者: 施建州;Shih, Chien-chou;蔣定安;Chiang, Ding-an;高文星;Kao, Wen-hsing
    貢獻者: 淡江大學資訊傳播學系
    關鍵詞: disjunctive information;incomplete information;well-defined relational algebra;relational database;uniquely determined
    日期: 2004-09
    上傳時間: 2010-01-27 17:02:14 (UTC+8)
    出版者: Institute of Information Science
    摘要: 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.
    關聯: Journal of Information Science and Engineering 20(5), p.981-999
    顯示於類別:[資訊工程學系暨研究所] 期刊論文
    [資訊傳播學系暨研究所] 期刊論文


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