Question

Given the following 'authors' and 'books' tables:

```
authors:
| author_id | name       |
|-----------|------------|
| 1         | John Smith |
| 2         | Jane Doe   |

books:
| book_id | title          | author_id |
|---------|----------------|-----------|
| 1       | My First Book  | 1         |
| 2       | Another Book   | 1         |
| 3       | A Great Novel  | 2         |
```
Which SQL query retrieves the titles of books written by 'John Smith'?

Accepted Answer

SELECT title FROM books INNER JOIN authors ON books.author_id = authors.author_id WHERE authors.name = 'John Smith';

Answer

SELECT title FROM books WHERE author_id = (SELECT author_id FROM authors WHERE name = 'John Smith');

Answer

SELECT title FROM books INNER JOIN authors ON books.author_id = authors.author_id WHERE authors.author_id = 1;

Answer

SELECT title FROM books WHERE author_id = 1;

Question from the SQL - Fundamentals test