## OnlineResources

resourceId | url | title
--- | --- | ---
1 | https://www.mathopenref.com/ | Math Open Ref
2 | https://www.english-test.net/ | English Test Net
3 | https://www.historyworld.org/ | History World
4 | https://www.physicsclassroom.com/ | Physics Classroom
5 | https://www.chemguide.co.uk/ | Chem Guide

## TestPreparations

preparationId | topic | resourcesId | servicesId
--- | --- | --- | ---
|  | (→ OnlineResources.resourceId) | (→ TutoringServices.serviceId)
1 | Algebra | 1 | 1
2 | Grammar | 2 | 2
3 | Ancient History | 3 | 3
4 | Electricity and Magnetism | 4 | 4
5 | Organic Chemistry | 5 | 5

## TutoringServices

serviceId | tutorId | date | duration
--- | --- | --- | ---
| (→ Students.id) |  |
1 | 1 | 2022-12-19 18:00:00 | 60
2 | 2 | 2022-12-20 17:30:00 | 45
3 | 3 | 2022-12-21 16:00:00 | 60
4 | 4 | 2022-12-22 15:30:00 | 60
5 | 5 | 2022-12-23 17:00:00 | 75

## Tutors

id | firstName | lastName
--- | --- | ---
1 | John | Doe
2 | Jane | Smith
3 | Michael | Brown
4 | Emily | White
5 | David | Green