What are the basic categories of the SQL language based on functionality?

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Tags

1. #objects
2. #modifying
3. #depending
4. #their
5. #truncate
6. #dropping
7. #definition
8. #create
9. #commands
10. #rename
11. #major
12. #these
13. #alter
14. #structure
15. #functionality
16. #database
17. #categories
18. #creating
19. #grouped
20. #language