Last modified on 25 April 2015, at 17:40

cardinality

EnglishEdit

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EtymologyEdit

cardinal +‎ -ity

NounEdit

cardinality (plural cardinalities)

  1. (set theory) Of a set, the number of elements it contains.
    The empty set has a cardinality of zero.
  2. (data modeling) The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.

SynonymsEdit

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