This paper is devoted to the analysis of mandatory access restriction system for Oracle DBMS. As the result, several leakage channels are discovered.For many information system based on DBMS it is often a problem to implement access restriction, which takes information value into account. It is usually crucial for large-scale information systems of government or [...]
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The time gone by of SQL begins in an IBM laboratory in San Jose, California, where on earth SQL was urbanized in the late 1970s. The fundamental pose for Structured Query Language and the language itself is time and again referred to as “sequel.” It was in the inauguration built-up for IBM’s DB2 item for [...]
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SQL, the dominant database language, is a simple and highly structured language; yet, students have many difficulties learning it. SQL-Tutor, an online Intelligent Teacher which helps students in overcoming these difficulties. SQL is a tool for organizing, managing, and retrieving data stored by a computer database. The acronym SQL is an abbreviation for Structured Query [...]
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