Database - ER Model and Business Rules

Exercise : ER Model and Business Rules - True or False
6.
Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
An entity instance of a subtype represents the same entity instance of a supertype.
True
False
Answer: Option
Explanation:
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8.
A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings.
True
False
Answer: Option
Explanation:
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9.
An ERD that has had the entities clustered will display more entities.
True
False
Answer: Option
Explanation:
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10.
Total specialization is represented by double lines between the supertype and subtype on an EER.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.