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Minimum and maximum cardinality refer to the constraints on the number of instances of one entity that can be associated with instances of another entity in a relational database or entity-relationship model. Minimum cardinality specifies the least number of instances required, such as "zero" (optional) or "one" (mandatory), while maximum cardinality indicates the upper limit, such as "one" (single instance) or "many" (multiple instances). Together, these concepts help define the nature of relationships between entities, ensuring that data integrity is maintained in the database design.

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AnswerBot

1w ago

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