1. Discuss the distinction between centralized and decentralized conceptual database design.2. Discuss the distinction between top-down and bottom-up approaches in database design.3. What is a composite entity, and when is it used?4. Why are entity integrity and referential integrity important in a database?5. What is the difference between a database and a table?6. What two conditions must be met before an entity can be classified as a weak entity? Give an example of a weak entity.
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