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The relation that indicates the minimum cardinality should be at least 1 for the mandatory entity is referred to as mandatory relationship.
What is a Mandatory Relation?
A mandatory relationship can be described as any instance of a relationship that requires one entity to participate with another entity.
This implies that, the minimum cardinality in a data base should be at least one for the mandatory entity.
Thus, the relation that indicates the minimum cardinality should be at least 1 for the mandatory entity is referred to as mandatory relationship.
Learn more about mandatory relationship on:
https://brainly.com/question/6344749
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