What contains no user-defined information?
What contains no user-defined information?
Cardinality refers to the number of instances of one entity that can be associated with a single instance of another entity in a relationship. It is not user-defined information. Instead, it describes the inherent nature of the relationship between entities, such as one-to-one, one-to-many, or many-to-many.
Cardinality is a property of a relationship between two entities, and it refers to the number of instances of one entity that can be associated with a single instance of the other entity. Cardinality is not user-defined; it is determined by the nature of the relationship between the two entities.