- Which types of table joins exist?
- What does an INNER JOIN do?
- What is a table alias, and how do you use it?
- Which types of OUTER JOIN exist in MySQL?
- What does a right excluding join do?
- What is a natural join?
- What is a CROSS JOIN?
- What is the difference between UNION and UNION ALL?
- How do you accomplish an intersection query in MySQL?
- How can you improve multiple table query performance?
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