350 rub
Journal Achievements of Modern Radioelectronics №7 for 2012 г.
Article in number:
Analytical evaluation of the optimal query processing
Keywords: query optimization method sequence of elementary queries minimum processing time dominant sequence efficiency of the optimal processing order
Authors:
O.M. Brekhov
Abstract:
In this paper is proposed a plan for optimizing the query execution time while accessing the database based on ordering the conjunctions of elementary queries, forming the entire or part of the request. An expression is given for the minimum request execution time for an ordered set of elementary requests in accordance with the required system of inequalities.
Pages: 37-45
References
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  2. Кузнецов С.Д. Базы данных: языки и модели. М.: Бином. 2008.