diff --git a/README.md b/README.md
index 05e2cf7..573bbff 100644
--- a/README.md
+++ b/README.md
@@ -63,11 +63,6 @@ Here is an example of how you should paste your SQL queries in the `queries.md`
Find all technologies in the database:
-```sql
-# This should be pasted in the queries.md file
-SELECT * FROM technologies;
-```
-
## Iteration 1 - Database Setup
@@ -172,36 +167,81 @@ After you run a query in your `psql` client and get the correct result, remember
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
+select * from books
+inner join authors on books.author_id = authors.id
+```
+
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
+select * from authors
+left join books on authors.id = books.author_id
+```
+
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
+select * from authors
+right join books on authors.id = books.author_id
+```
+
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
+select * from authors
+full join books on authors.id = books.author_id
+```
+
## BONUS: Iteration 3 - Joins (continued)
1. Using an **INNER JOIN**, list all books (left table) and their corresponding publishers on the (right table). The result should include the book's title, publisher's name, and location.
+```sql
+select books.title, publishers.name, publishers.location from books
+inner join publishers on books.publisher_id = publishers.id
+```
+
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.
+```sql
+select * from publishers
+left join books on publishers.id = books.publisher_id
+```
+
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.
+```sql
+select books.title, publishers.name, publishers.location
+from publishers
+right join books on publishers.id = books.publisher_id;
+```
+
4. Using a **FULL JOIN**, list all records from the `authors`, `books`, and `publishers` tables. The result should include all records from the three tables, even if there are no matches between them.
+```sql
+select a.*, b.*, p.*
+from authors a
+full join books b on a.id = b.author_id
+full join publishers p on b.publisher_id = p.id;
+
+```
+
Happy Coding! 💙
diff --git a/queries.md b/queries.md
index b06f900..a011535 100644
--- a/queries.md
+++ b/queries.md
@@ -4,10 +4,13 @@
## Iteration 2 - Joins
+
+
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 * from books
+inner join authors on books.author_id = authors.id
```
@@ -15,7 +18,8 @@
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 * from authors
+left join books on authors.id = books.author_id
```
@@ -23,7 +27,8 @@
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 * from authors
+right join books on authors.id = books.author_id
```
@@ -31,7 +36,8 @@
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 * from authors
+full join books on authors.id = books.author_id
```
@@ -41,7 +47,8 @@
1. Using an **INNER JOIN**, list all books (left table) and their corresponding publishers on the (right table). The result should include the book's title, publisher's name, and location.
```sql
--- Your Query Goes Here
+select books.title, publishers.name, publishers.location from books
+inner join publishers on books.publisher_id = publishers.id
```
@@ -49,7 +56,8 @@
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.
```sql
--- Your Query Goes Here
+select * from publishers
+left join books on publishers.id = books.publisher_id
```
@@ -57,7 +65,9 @@
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.
```sql
--- Your Query Goes Here
+select books.title, publishers.name, publishers.location
+from publishers
+right join books on publishers.id = books.publisher_id;
```
@@ -65,7 +75,11 @@
4. Using a **FULL JOIN**, list all records from the `authors`, `books`, and `publishers` tables. The result should include all records from the three tables, even if there are no matches between them.
```sql
--- Your Query Goes Here
+select a.*, b.*, p.*
+from authors a
+full join books b on a.id = b.author_id
+full join publishers p on b.publisher_id = p.id;
+
```