Mở rộng các phép toán quan hệ cho null phụ thuộc ngữ cảnh

Bùi Thị Thúy Hiền
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Authors

  • Bùi Thị Thúy Hiền Publishing House for Science and Technology

DOI:

https://doi.org/10.15625/1813-9663/15/2/7764

Abstract

In this paper, we apply the concept of model introduced in [2] to define extended relational algebra operators. It is proved that these extensions have properties which are formally stated as being adequate and precise.

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Published

19-02-2016

How to Cite

[1]
B. T. T. Hiền, “Mở rộng các phép toán quan hệ cho null phụ thuộc ngữ cảnh”, JCC, vol. 15, no. 2, pp. 47–53, Feb. 2016.

Issue

Section

Computer Science