📝 Question
#1278
If a multivalued dependency holds and is not implied by the corresponding functional dependency, it usually arises from one of the following sources.
✓
Correct Answer
D. Both A many-to-many relationship set and A multivalued attribute of an entity set
💡
Explanation
For a many-to-many relationship set each related entity set has its own schema and there is an additional schema for the relationship set. For a multivalued attribute, a separate schema is created consisting of that attribute and the primary key of the entity set.
⌨️ Press
A
B
C
D
to select