Question: Could you expound in database modeling, how subclass and superclass are used? Maybe you can use these terms(cardinality constraint , total participation constraint, weak entity

Could you expound in database modeling, how subclass and superclass are used? Maybe you can use these terms(cardinality constraint , total participation constraint, weak entity type, partial key, IS-A relationship, specialization and generalization, specific (or local) attribute, specific relationship, aggregation)

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