Flexible Query Languages for Relational Databases: An Overview
نویسندگان
چکیده
We present an overview of the most important proposals for human-oriented query languages for relational databases, based on fuzzy sets theory. To highlight important issues concerning communication with databases, we propose two taxonomies: the first taxonomy deals with flexible query languages in crisp relational databases and the second deals with flexible query languages in fuzzy relational databases. They can help database designers and users understand and select the best approaches to solve their problems.
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