Authors
| id | Name |
| 1 | Dr. Emily Thompson |
| 2 | Jane Doe |
| 3 | John Smith |
| 4 | Emma Watson |
| 5 | George Orwell |
Written_Works
| id | AuthorID | Type | Title | DatePublished |
| (→ Authors.id) | | | |
| 1 | 1 | Essay | My Favorite Essay | 2023-01-01 |
| 2 | 2 | Essay | Some Other Essay | 2023-01-02 |
| 3 | 1 | Letter | Important Letter | 2023-01-03 |
| 4 | 2 | Letter | Another Important Letter | 2023-01-04 |
Movie_Ratings
| id | MovieID | Rating | ReviewerID | DateRated |
| (→ Movies.id) | | (→ Reviewers.id) | |
| 1 | 1 | Awesome | 3 | 2023-01-01 |
| 2 | 2 | Good | 4 | 2023-01-02 |
Books_Sales
| id | BookID | Quantity | SaleDate | Revenue |
| (→ Books.id) | | | |
| 1 | 1 | 10 | 2023-01-01 | 1000.0 |
| 2 | 2 | 5 | 2023-01-02 | 500.0 |