Questions from Database Systems

Q: What is structural independence, and why is it important?

What is structural independence, and why is it important?

Q: Explain the differences between data, information, and a database

Explain the differences between data, information, and a database

Q: What is the role of a DBMS, and what are its

What is the role of a DBMS, and what are its advantages? What are its disadvantages?

Q: List and describe the different types of databases.

List and describe the different types of databases.

Q: Explain how the entity relationship (ER) model helped produce a

Explain how the entity relationship (ER) model helped produce a more structured relational database design environment.

Q: What are the main components of a database system?

What are the main components of a database system?

Q: What is metadata?

What is metadata?

Q: Explain why database design is important.

Explain why database design is important.

Q: What are the potential costs of implementing a database system?

What are the potential costs of implementing a database system?

Q: Use examples to compare and contrast unstructured and structured data. Which

Use examples to compare and contrast unstructured and structured data. Which type is more prevalent in a typical business environment?