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The MCQ: Specifying whether or not an entity in the superclass set must belong to at least one of subclass sets within specialization, by the constraint type; "Specialization" App Download (Free) with answers: Completeness constraint; Disjointness constraint; Overlapping constraint; Existence constraint; to learn computer science courses. Practice Specialization Quiz Questions, download Apple e-Book (Free Sample) for bachelor's degree in computer science.
Specialization MCQs: Questions and Answers PDF Download
In an E-R diagram, specialization is represented by a
- Hollow arrow-head
- Solid arrow-head
- Dashed arrow-head
- Double arrow-head
Specifying whether or not an entity in the superclass set must belong to at least one of subclass sets within specialization, by the constraint type
- Completeness constraint
- Disjointness constraint
- Overlapping constraint
- Existence constraint
The relationship of specialization may also be known as a/an
- Subclass-superclass relationship
- Superclass-subclass relationship
- Higher-level relationship
- Lower-level relationship
A property of entity sets created by specialization and generalization is known as
- Entity inheritance
- Sets inheritance
- Relational inheritance
- Attribute inheritance
Specialization emphasizes on differences by creating distinctions among
- Entity sets
- Attribute sets
- Instances
- Relations
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