Problem
1. How does MySQL handle database locking and concurrency control?
2. What is the difference between INNER JOIN and OUTER JOIN in MySQL?
3. How can you use MySQL to implement a geographic information system (GIS)?
4. What are some best practices for optimizing MySQL performance on a high-traffic web application?
5. How can you use MySQL to implement a full-text search feature in a web application?
6. How can you use MySQL to implement a transactional email system?
7. How can you use MySQL to implement a sharding architecture for a large-scale web application?