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Database · Q4

ER Model and Business Rules

Programming · Database · question 4

Q4

When an entity instance must be a member of only one subtype, it is which of the following?

A.
Disjoint with total specialization
Answer
B.
Disjoint with partial specialization
C.
Overlap with total specialization
D.
Overlap with partial specialization

Answer: Option A

Solution

Answer: Option A
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