1: What is the difference between INNER JOIN and OUTER JOIN?
2: Explain the concept of a LEFT JOIN.
3: What is a RIGHT JOIN in SQL?
4: How do you perform a full outer join?
5: What is a subquery in SQL?
6: How do you write a nested query?
7: What is the purpose of the UNION operator?
8: How do you use the DISTINCT keyword?
9: What is a view in SQL?
10: How do you create a view in SQL?
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