ER-Model
August 29, 2024Database-Management-System
August 29, 2024ER-Model
| Question 56 |
An ER Model includes
I. An ER diagram portraying entity types
II. Attributes for each entity type
III. Relationships among entity types.
IV. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.
I. An ER diagram portraying entity types
II. Attributes for each entity type
III. Relationships among entity types.
IV. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.
| I, II, III & IV | |
| I & IV | |
| I, II & IV | |
| I & III |
Question 56 Explanation:
An ER Model includes
1. An ER diagram portraying entity types.
2. Attributes for each entity type
3. Relationships among entity types.
4. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.
1. An ER diagram portraying entity types.
2. Attributes for each entity type
3. Relationships among entity types.
4. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.
Correct Answer: A
Question 56 Explanation:
An ER Model includes
1. An ER diagram portraying entity types.
2. Attributes for each entity type
3. Relationships among entity types.
4. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.
1. An ER diagram portraying entity types.
2. Attributes for each entity type
3. Relationships among entity types.
4. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram.