This paper deals with the problem of solving flexible queries made to relational databases, where the target of a query is not a list of attributes but any kind of summary function which is applied either to one attribute or to the whole table. In particular, we will attempt to solve questions which imply a generalization of the SELECT COUNT sentence. We will consider as general a context as possible, by assuming: the involved table includes fuzzy attributes, and the property which makes the selection, generates a fuzzy set of tuples.
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