Database Reference
In-Depth Information
REVIEW QUESTION
Short Answer type questions
1. ERD stands for ………..
2. Entity that rely on other entities for their existence, called ………..
3. M:M is of ………..relationship.
4. Unary relationships have only …. participant the relation is associated with itself.
5. The rows are called ……….. and the columns, ………..
6. Relation is also known as a table
7. An entity is represented as a rectangle on the diagram.
8. An entity set is set of entities of the same type. (True/False) (True/False) (True/False)
9. A composite attribute is formed by combining related attributes. (True/False)
10. Key uniquely identify rows (True/False)
Long Answer type questions
1. What you mean by an entity and entity set?
2. What is an attribute?
3. Write various types of attributes?
