International Journal of Computer Science and Management Studies (IJCSMS)
While working with usual software tools users have to change their many valued logical thinking (approximate reasoning) into the two-valued computer logic. Although the Structured Query Language (SQL) is a very powerful tool, it is unable to satisfy needs for data selection based on linguistic expressions and degrees of truth. In this paper, the authors are interested in flexible querying that is based on fuzzy set theory. The researcher has developed a server named fuzzy SQL, supporting flexible queries and based on a theoretic model called GEFRED.