Limitations of the relational model. Limitations of the relational model. Just as the relational model supplanted the network and hierarchical model so too will the object â€“ orientated model supplant the relation model ? Is this true? Why?. Major strengths of the relational model.
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Just as the relational model supplanted the network and hierarchical model so too will the object – orientated model supplant the relation model ?
Name NI DoB Addres Gender Salary Empno
Fname initail Sname
No street town city PC
Class of objects associated with a type higher is a superset of that association
Every employee is a teacher
Every student instructor is both a student and an instructor
Classes below inherit attributes from those above
Inheritance not in R model