Question

Étant donné les tables 'authors' et 'books' suivantes :

```
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         |
```

Quelle requête SQL permet de récupérer le titre des livres écrits par '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 du test SQL - Les bases