What are subqueries in SQL?

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Tags

1. #another
2. #called
3. #outer
4. #could
5. #expression
6. #statements
7. #update
8. #insert
9. #subqueries
10. #along
11. #within
12. #delete
13. #query
14. #operator
15. #comparison
16. #subquery
17. #select
18. #equality
19. #inner