SQL Taskbook Level 5.3
The tables are given:
| id | first_name | last_name | date_of_birth |
|---|---|---|---|
| 1 | John | Smith | 1987-12-12 |
| 2 | Alex | Cooper | 1999-02-20 |
| 3 | Agata | Leyla | 1970-01-30 |
| 4 | Ivan | Ivanov | 1994-05-31 |
| 5 | Peter | Petrov | 1991-08-24 |
| id | title | body | author_id |
|---|---|---|---|
| 1 | Post-1 | Lorem ipsum dolor sit amet, consectetur adipiscing elit. | 12 |
| 2 | Post-2 | Duis aute irure dolor in reprehenderit in voluptate. | 24 |
| 3 | Post-3 | Sed ut perspiciatis, unde omnis iste natus error. | 2 |
| 4 | Post-4 | Ut enim ad minima veniam, quis nostrum. | 1 |
| 5 | Post-5 | Quis autem vel eum iure reprehenderit. | 34 |
| 6 | Post-6 | Et harum quidem rerum facilis est et expedita. | 31 |
| 7 | Post-7 | Excepteur sint occaecat cupidatat. | 22 |
| 8 | Post-8 | Ullam corporis suscipit laboriosam, nisi ut aliquid. | 11 |
Solve the following tasks for them:
Get the entire list of posts and their authors, even if the post has no author.
Get the entire list of authors and their posts, even if the author doesn't have any.
Get the names and year of birth of the authors and the name of the post they wrote. Note that the author may not have written any posts.
Get the names of authors and their posts. Moreover, for all authors who do not have a single post.
