A New Upgrade to SQLf: Towards a Standard in Fuzzy Databases

Author

González, Claudia ; Goncalves, Marlene ; Tineo, Leonid

Author_Institution

Dept. de Comput., Univ. Simon Bolivar, Caracas, Venezuela

fYear

2009

fDate

Aug. 31 2009-Sept. 4 2009

Firstpage

442

Lastpage

446

Abstract

One remarkable fuzzy set based extension to SQL is SQLf. It allows fuzzy conditions in any place where SQL allows a Boolean one. At present time SQLf development is not up to date with SQL standard. Latest SQLf revision was with the SQL:1999 standard.New features of SQL:2003 standard have not been yet extended to the fuzzy case in SQLf. In this paper, we make a contribution towards a standard in Fuzzy Databases, upgrading SQLf according SQL:2003 standard, proposing these new fuzzy features: fuzzy table storage,fuzzy multiset data type and fuzzy merge statement.

Keywords

SQL; fuzzy logic; relational databases; SQLf extension; fuzzy database; fuzzy merge statement feature; fuzzy multiset data type feature; fuzzy set SQL extension; fuzzy table storage feature; Boolean functions; Fuzzy logic; Fuzzy set theory; Fuzzy sets; Fuzzy systems; Hybrid intelligent systems; Information retrieval; Relational databases; Spatial databases; Standards development; Flexible Querying; Fuzzy Database; SQLf;

fLanguage

English

Publisher

ieee

Conference_Titel

Database and Expert Systems Application, 2009. DEXA '09. 20th International Workshop on

Conference_Location

Linz

ISSN

1529-4188

Print_ISBN

978-0-7695-3763-4

Type

conf

DOI

10.1109/DEXA.2009.35

Filename

5337238