Logical: NOT EQUAL

1. SELECT title FROM books WHERE released_year = 2017;
2.  
3. SELECT title FROM books WHERE released_year != 2017;
4.  
5. SELECT title, author_lname FROM books;
6.  
7. SELECT title, author_lname FROM books WHERE author_lname = 'Harris';
8.  
9. SELECT title, author_lname FROM books WHERE author_lname != 'Harris';