ER-Model
August 13, 2024Database-Management-System
August 13, 2024ER-Model
| Question 61 |
Aggregation is :
| an abstraction through which relationships are treated as lower level entities. | |
| an abstraction through which relationships are treated as higher level entities. | |
| an abstraction through which relationships are not treated at all as entities. | |
| none of the above |
Question 61 Explanation:
Aggregation: A directional between objects. When an object “has-a” another object, then you have got an aggregation between them, you have got an aggregation between them. Direction between them specified which object contains the other object.
Aggregation is an abstraction through which relationships are treated as higher level entities.
Note: Aggregation is an abstraction through which relationships are treated as higher level entities.
Aggregation is an abstraction through which relationships are treated as higher level entities.
Note: Aggregation is an abstraction through which relationships are treated as higher level entities.
Correct Answer: B
Question 61 Explanation:
Aggregation: A directional between objects. When an object “has-a” another object, then you have got an aggregation between them, you have got an aggregation between them. Direction between them specified which object contains the other object.
Aggregation is an abstraction through which relationships are treated as higher level entities.
Note: Aggregation is an abstraction through which relationships are treated as higher level entities.
Aggregation is an abstraction through which relationships are treated as higher level entities.
Note: Aggregation is an abstraction through which relationships are treated as higher level entities.