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Volume 2 Issue 4
October  1987
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Jin Hongping, Gu Junzhong. The Optimization of Distributed Join in C-POREL System[J]. Journal of Computer Science and Technology, 1987, 2(4): 276-286.
Citation: Jin Hongping, Gu Junzhong. The Optimization of Distributed Join in C-POREL System[J]. Journal of Computer Science and Technology, 1987, 2(4): 276-286.
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The Optimization of Distributed Join in C-POREL System

  • East China Normal University Shanghai; East China Normal University Shanghai;

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  • Published Date: October 09, 1987
    Abstract
  • C-POREL is a distributed relational data base management system, with full distribution transparency. A relation can be horizontally fragmented into several subrelations allocated to different sites. When two or more fragmented relations appear in a join query, many-to- many semijoins between correspondent relations are usually needed in order to fully reduce relations involved. Distribution dependent attributes of a relational schema are defined in this paper. An optimization approach of distributed join w...
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    • References (5)
  • [1]
    P.A.Bernstein, D.M.Chiu, Using semijoin to solve relational queries, Journal of the ACM, 28:1 (1981).
    [2]
    C.T.Yu, C.C.Chang, Distributed queries processing, Computing Surveys, 12(1984).
    [3]
    A.R.Hevner and S.B.Yao, Query processing in distributed database system, IEEE-TSE, SE-5:3 (1982).
    [4]
    L.X.Zhou, The design and implementation of a distributed relational database system: C-POREI; Scientia Sinica (A), 1(1985).
    [5]
    Hopping Jin, Query Processing Strategies and Optimization, Ms. Thesiss of East China Normal Univ., March 1986. ……….
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