SECURE: An Ameliorated SQL Semiotic for Security

The Information Systems, Databases are vital and critical in the arena of Business, Enterprise, Governance etc., for the decision making. Further, the Information Systems are designed to reach maximum number of people for interaction with system. This intent of system usage appears to be resourceful but the identification of reliable users of system has challenged the technocrats. Most of the applications uses relational data base system (RDBMS) for the database support but with intelligent exploitation of vulnerability in Structured Query Language (SQL) of RDBMS, the dishonest people are interested in manipulation or processing of the data for business value reduction or damage. This paper attempts to endow with security to a relational database system by the inclusion of newly designed semiotic to keyword SECURE into a lexicon of SQL. Then the semiotic is articulated in relational algebraic expression for current query engine execution.