1. What are the advantages of the database approach?
2. What is data modeling? What is its purpose? Briefly describe three commonly used data models.
3. What is a database schema, and what is its purpose?
1. What is a flat file?
2. What is the purpose of a primary key? How can it be useful in controlling data redundancy?
3. What is the purpose of data cleanup?
1. What is an attribute? How is it related to an entity?
2. Define the term database. How is it different from a database management system?
3. What is the hierarchy of data in a database?
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