Logical: LESS THAN

1. SELECT title, released_year FROM books;
2.  
3. SELECT title, released_year FROM books
4. WHERE released_year < 2000;
5.  
6. SELECT title, released_year FROM books
7. WHERE released_year <= 2000;
8.  
9. SELECT 3 < -10;
10. -- false
11.  
12. SELECT -10 < -9;
13. -- true
14.  
15. SELECT 42 <= 42;
16. -- true
17.  
18. SELECT 'h' < 'p';
19. -- true
20.  
21. SELECT 'Q' <= 'q';
22. -- true