What is "cardinality"
In relational databases the records of two tables may have one-to-one, one-to-many or many-to-many relations. This relation is called cardinality and is a fundamental aspect of data modeling.
In relational databases the records of two tables may have one-to-one, one-to-many or many-to-many relations. This relation is called cardinality and is a fundamental aspect of data modeling.