Wednesday, February 19, 2020

DISTINCT

  1. SELECT author_lname FROM books;
  2.  
  3. SELECT DISTINCT author_lname FROM books;
  4.  
  5. SELECT author_fname, author_lname FROM books;
  6.  
  7. SELECT DISTINCT CONCAT(author_fname,' ', author_lname) FROM books;
  8.  
  9. SELECT DISTINCT author_fname, author_lname FROM books;
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