- What type of subqueries can you use?
- What's the difference between correlated and non-correlated subqueries?
- Where can you use a non-correlated subquery?
- Where can you use a correlated subquery?
- What is CTE?
- What types of CTEs exist?
- What is locking?
- How can you make a query use a specific index?
- What transaction isolation levels exist?
- What is a phantom read?




















































