Improve services by using database management systems

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Reference no: EM13764193

Entity Relationship Diagram

Write a 200- to 300-word short-answer response for the following:

• A motor vehicle maintenance center wants to improve its services by using database management systems (DBMS) and data mining. What tables are needed in such a database and how can it help improve their 2.2, 3.2services?

2. Write a 200- to 300-word short-answer response for the following:

• What are four types of cardinality constraints? Provide personal examples of each.

3. Write a 200- to 300-word short-answer response for the following:

•How do you select the primary key from the candidate keys? How do foreign keys relate to candidate keys? Provide examples from either your workplace or class assignments.

4. Write a 200- to 300-word short-answer response for the following:

• Under what circumstances would you break down an overall design to include individual user views? Provide examples from either your workplace or class assignments.

5. Write 200- to 300-word short-answer response to the following:

What is the difference between a database and a table?

6. Write 200- to 300-word short-answer response to the following:

What does it mean to say that a database displays both entity integrity and referential integrity?

7. Write 200- to 300-word short-answer response to the following:

Why are entity integrity and referential integrity important in a database?

8. Write 200- to 300-word short-answer response to the following:

What are the requirements that two relations must satisfy to be considered union-compatible?

Reference no: EM13764193

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