Cardinality

[SQL statements] In SQL (Structured Query Language), the term cardinality refers to the uniqueness of data values contained in a particular column (attribute) of a database table. The lower the cardinality, the more duplicated elements in a column. Thus, a column with the lowest possible cardinality would have the same value for every row.
Found on http://en.wikipedia.org/wiki/Cardinality_(SQL_statements)

Cardinality

[data modeling] In data modeling, the cardinality of one data table with respect to another data table is a critical aspect of database design. Relationships between data tables define cardinality when explaining how each table links to another. In the relational model, tables can be related as any of: many-to-many, many-to-one (rev. one-to
Found on http://en.wikipedia.org/wiki/Cardinality_(data_modeling)

cardinality

noun (mathematics) the number of elements in a set or group (considered as a property of that grouping)
Found on http://wordnetweb.princeton.edu/perl/webwn?s=cardinality

cardinality

cardinality A reference to a set, the cardinal number indicating the number of elements in the set.
Found on http://www.wordinfo.info/words/index/info/view_unit/379/

Cardinality

In mathematics, the cardinality of a set is a measure of the "number of elements of the set". For example, the set A = {2, 4, 6} contains 3 elements, and therefore A has a cardinality of 3. There are two approaches to cardinality – one which compares sets directly using bijections and injections, and another which uses cardinal numbers. The ca..
Found on http://en.wikipedia.org/wiki/Cardinality
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