04-29-2011, 07:54 AM
Cardinality is a rule specifying how many times an entity can be related to another entity in a given relationship.
* means many i.e. an entity can be related to another entity many times.
Example:
Company and Employees:
Many employees can related with a single entity i.e. company
* means many i.e. an entity can be related to another entity many times.
Example:
Company and Employees:
Many employees can related with a single entity i.e. company
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