Data Management

New Architecture of Fuzzy Database Management Systems

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Executive Summary

Fuzzy relational data bases have been extensively studied in a theoretical level. Unfortunately, the repercussions of these works on the practical plan are negligible. Medina et al. have developed a server named fuzzy SQL, supporting flexible queries and based on a theoretic model called GEFRED. This server has been programmed in PL/SQL language under Oracle database management systems. To model the flexible queries and the concept of fuzzy attributes, an extension of the SQL language named fuzzy SQL has been defined. The FSQL language extends the SQL language, to support the flexible queries, with many fuzzy concepts. The FRDB is supposed has already been defined by the user.

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