1. Describe the characteristics of a table that make it a relation. Define the term domain and domain integrity constraint to a relation. 2. What is a primary key? Explain the difference between candidate key and a primary key? 3. What is the significance of normalization in database design? What conditions are required for a relation to be in 3NF? 4. Discuss Entity Relationship Diagram (ERD). How does it help developers and business users to understand database design? 5. What is a recursive relationship. Explain it with examples using ERD.
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