Acta Informatica Pragensia 2013, 2(2), 25-38 | DOI: 10.18267/j.aip.216806

Flexible data queries

Miroslav Hudec
Faculty of Economic Informatics, University of Economics in Bratislava, Dolnozemská cesta 1, 852 35 Bratislava, Slovak Republic

The Structured Query Language (SQL) has been established as a standard for querying relational databases. However, users face the problem how to define their requirements for data by the exact query conditions. This work examines advantages of fuzzy queries, which provide a better representation of the user requirements by expressing imprecise conditions through linguistic terms. Further, the paper discusses solving empty and overabundant answer problems, revealing similarities in database entities and applying preferences in query conditions. Finally, paper discusses practical realisations of fuzzy queries.

Keywords: Fuzzy logic, SQL, Benefits of fuzzy queries

Received: October 18, 2013; Revised: December 18, 2013; Accepted: December 28, 2013; Published: December 31, 2013  Show citation

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Hudec, M. (2013). Flexible data queries. Acta Informatica Pragensia, 2(2), 25-38. doi: 10.18267/j.aip.21
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