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lab done #22

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26 changes: 26 additions & 0 deletions queries.md
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@
-- Your Query Goes Here
```

SELECT books.title, authors.name
FROM books
INNER JOIN authors ON books.author_id = authors.id;

<br>

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.
Expand All @@ -18,6 +22,9 @@
-- Your Query Goes Here
```

SELECT authors.name, books.title
FROM authors
LEFT JOIN books ON authors.id = books.author_id;
<br>

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.
Expand All @@ -26,6 +33,9 @@
-- Your Query Goes Here
```

SELECT books.title, authors.name
FROM authors
RIGHT JOIN books ON authors.id = books.author_id;
<br>

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.
Expand All @@ -34,6 +44,10 @@
-- Your Query Goes Here
```

SELECT books.title, authors.name
FROM books
FULL JOIN authors ON books.author_id = authors.id;

<br>

## BONUS: Iteration 3 - Joins (continued)
Expand All @@ -44,6 +58,10 @@
-- Your Query Goes Here
```

SELECT books.title, publishers.name AS publisher_name, publishers.location
FROM books
INNER JOIN publishers ON books.publisher_id = publishers.id;

<br>

2. Using a **LEFT JOIN**, list all publishers (left table) and any books they have published on the (right table). The result should include all publishers, including those who haven't published any books.
Expand All @@ -52,6 +70,10 @@
-- Your Query Goes Here
```

SELECT publishers.name AS publisher_name, books.title
FROM publishers
LEFT JOIN books ON publishers.id = books.publisher_id;

<br>

3. Using a **RIGHT JOIN**, list all books (right table) and their corresponding publishers on the (left table). The result should include all books, even those without a linked publisher.
Expand All @@ -68,4 +90,8 @@
-- Your Query Goes Here
```

SELECT books.title, publishers.name AS publisher_name
FROM publishers
RIGHT JOIN books ON publishers.id = books.publisher_id;

<br>