Please help answer these short answer essay questions. I have 2 hours left to complete.
1. Designing a database often involves obtaining different perspectives from various sources to gather information. Discuss the importance of end-user interviews in the data requirements-gathering process.
2. Explain entity integrity and referential integrity. Give an example of each.
3. Explain the importance of determining relationships before establishing primary keys in the design sequence.4. Explain 1NF, 2NF, and 3NF as related to database design.