Application of relational algebra during information processing of the databases of agro-industrial complex enterprises
Автор: Zhidchenko Tatiana Victorovna, Zhidchenko Alexei Anatolievich
Журнал: Вестник аграрной науки Дона @don-agrarian-science
Рубрика: Механизация и электрификация животноводства, растениеводства
Статья в выпуске: 1 (17), 2012 года.
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The relational algebra based on the sets theory as formal system of a manipulation the relations in relational model of data is considered. This system, as well as the relational calculation based on mathematical logic, is way of the receiving of the resultant informational relation.
Database, information processing, model of data, relational model, relational algebra, system
Короткий адрес: https://sciup.org/140204143
IDR: 140204143
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