Answer:
Cardinality
Step-by-step explanation:
In database design cardinality of relationship between two data tables shows the relationship between the rows and column of one table to other table. Cardinality commonly used are one-to-one cardinality, one-to-many cardinality and many-to-many cardinality. In which a single entry of the table related to only one and many in other table and many entries are related to many too.