Mike solution

basic_queries.sql

@@ -1,31 +1,66 @@
 -- BASIC QUERIES
 -- Unless otherwise stated, all queries should return all columns
 
+
 -- Get all information about all authors
+SELECT * FROM authors;
+
 
 -- Get just the name and birth year of all authors
+SELECT name, birth_year FROM authors;
+
 
 -- Get all authors born in the 20th centruy or later
+SELECT * FROM authors
+  WHERE birth_year > 1900;
+
 
 -- Get all authors born in the USA
+SELECT * FROM authors
+  WHERE nationality = "USA";
 
 -- Get all books published on 1985
+SELECT * FROM books
+  WHERE publication_date = 1985;
 
 -- Get all books published before 1989
+SELECT * FROM books
+  WHERE publication_date < 1989;
 
 -- Get just the title of all books.
+SELECT title FROM books;
 
 -- Get just the year that 'A Dance with Dragons' was published
   -- Cry when you realize how long it's been
+SELECT publication_date FROM books
+  WHERE title = "A Dance with Dragons";
 
 -- Get all books which have `the` somewhere in their title (hint, look up LIKE/ILIKE)
+SELECT * FROM books
+  WHERE title LIKE "%the%";
 
 -- Add yourself as an author
+INSERT INTO authors VALUES
+  ("Michael Mahony", "USA", 1991);
 
 -- Add two books that you'd like to write (you can hard-code your id as the author id)
+INSERT INTO books VALUES
+  ("Kids Nowadays Don't Know How To Just Sit Around And Be Bored: A Memoir", 2053, 14);
+
+INSERT INTO books VALUES
+  ("The Apocalypse and You: Life After Supreme Leader Trump", 2019, 14);
+
 
 -- Update one of your books to have a new title
+UPDATE books SET title = "IS THIS WHAT YOU WANTED??"
+  WHERE title = "The Apocalypse and You: Life After Supreme Leader Trump";
+
 
 -- Delete your books
+DELETE FROM books
+  WHERE author_id = 14;
+
 
 -- Delete your author entry
+DELETE FROM authors
+  WHERE name = "Michael Mahony";