Data Access Control Via Virtual External Model

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The article discusses the problem of organizing different levels of access to data within information systems. These are based on a relational database designed to automate the management of the enterprise. Here we introduce the necessary definitions and concepts to build a model that allows us to make the mechanism of restricting access to data at the level of the relational model.

作者简介

V Petrov

Peoples Friendship University of Russia

Email: vladimirap@yandex.ru
Кафедра информационных технологий; Российский Университет Дружбы Народов; Peoples Friendship University of Russia

O Dolina

Peoples Friendship University of Russia

Email: odolina@gmail.com
Кафедра информационных технологий; Российский Университет Дружбы Народов; Peoples Friendship University of Russia

I Tolmachev

Peoples Friendship University of Russia

Email: tolmachevil@mail.ru
Кафедра информационных технологий; Российский Университет Дружбы Народов; Peoples Friendship University of Russia

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