Solution-Entity relationship data modeling

Entity relationship data modeling

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Reference no: EM133365034

Entity Relationship Data Modeling

Questions

1. In the ER model, how are entities and relationships diagrammed?

2. The degree of a relationship is called _____________________

3. What are the objectives of conceptual data modeling?

4. What constitutes an entity?

5. What is the problem domain?

6. What is typically the first attribute of an entity? Describe its purpose.

7. What are the three types of binary relationships?

8. Under what circumstances can a relationship also be treated as an entity?

9. Show the following using the ER modeling techniques:

A student can be a member of several clubs and a club can have many student members.

10. What is an instance of an entity? Give an example.

Reference no: EM133365034

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Entity relationship data modeling

Reference no: EM133365034

Reference no: EM133365034

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