Open AccessÁnh xạ cơ sở dữ liệu, các bài toán tách và cập nhật độc lập
Author(s) -
Ho Van Tich
Publication year - 2018
Publication title -
journal of computer science and cybernetics (vietnam academy of science and technology)/journal of computer science and cybernetics
Language(s) - English
Resource type - Journals
eISSN - 2815-5939
pISSN - 1813-9663
DOI - 10.15625/1813-9663/6/1/11134
Subject(s) - base (topology) , projection (relational algebra) , combinatorics , mathematics , physics , algorithm , mathematical analysis
In this paper, we apply the theory of data base mappings to the important areas of data base systems: data base n-decomporition and independent update in distributed data base. We show how our general results reduced to well known results in the special case of projection and functional dependencies.