diff --git a/queries.md b/queries.md index b06f900..e9f18e9 100644 --- a/queries.md +++ b/queries.md @@ -7,7 +7,9 @@ 1. Using an **INNER JOIN**, list all books (left table) that have an assigned author (right table). The result should include only books with assigned authors. ```sql --- Your Query Goes Here +SELECT books.*, authors.name AS author_name +FROM books +INNER JOIN authors ON books.author_id = authors.id; ```
@@ -15,7 +17,9 @@ 2. Using a **LEFT JOIN**, list all authors (left table) and their corresponding books on the (right table). The result should include all authors, including those who don't have any books assigned. ```sql --- Your Query Goes Here +SELECT authors.*, books.title AS book_title +FROM authors +LEFT JOIN books ON books.author_id = authors.id; ```
@@ -23,7 +27,9 @@ 3. Using a **RIGHT JOIN**, list all books (right table) and their corresponding authors on the (left table). The result should include books without assigned authors. ```sql --- Your Query Goes Here +SELECT books.*, authors.name AS author_name +FROM authors +RIGHT JOIN books ON books.author_id = authors.id; ```
@@ -31,7 +37,9 @@ 4. Using a **FULL JOIN**, list all records from the `books` and `authors` tables. The result should include all details from both tables, even if there are no match. ```sql --- Your Query Goes Here +SELECT books.title AS book_title, authors.name AS author_name +FROM books +FULL JOIN authors ON books.author_id = authors.id; ```