Management of an estate agency allowing fuzzy data and flexible queries.
José Á. Galindo, Juan Miguel Medina, Juan-Carlos Cubero, Olga Pons · 1999
As main result of all our previous work, we have now available a FSQL Server for Oracle Databases, programmed in PL/SQL. Thisserver allows us to query either a Fuzzy or Classic Relational Database with the FSQL language ( Fuzzy SQL). The FSQL language is an extension of the SQL language which permits us to write exible (or fuzzy) conditions in our queries to a fuzzy or traditional database. In this work we present a management system for a real estate agency in which some attributes of the landed properties may be fuzzy, i.e., we can store imprecise information about it. Besides, our system allows the user to make exible or fuzzy queries in order to retrieve the most relevant properties of our database, starting with the customer information. The goal is to retrieve the most interesting landed properties according to the initial customer preferences. Of course, we can obtain a membership degree for each landed property in the fuzzy query result.