Could you expound in database modeling, how subclass and
superclass are used? Maybe you can use...
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Could you expound in database modeling, how subclass andsuperclass are used? Maybe you can use these terms(cardinalityconstraint , 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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Specialized class are often called assubclass while generalized classare called superclass probably inspired by object orientedprogramming A subclass is best understood by ISAanalysis Following statements hopefully makes some senseto your mind Technician ISA Employee Laptop ISAComputerAn entity is specialized typeclass of other entity Forexample Technician is special Employee in a university
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