| ID | Level |
|---|---|
| 1 | Beginner |
| 2 | Advanced |
| 3 | Expert |
| ID | Name | Description | DifficultyID |
|---|---|---|---|
| (→ Difficulty_Level.ID) | |||
| 1 | Math | Introduction to Mathematics | 1 |
| 2 | Physics | Basic Principles of Physics | 2 |
| 3 | Biology | Basics of Biological Sciences | 3 |
| 4 | History | World History Overview | 1 |
| 5 | Literature | Classic Novels Analysis | 2 |
| ID | Title | Author | ISBN | SubjectID |
|---|---|---|---|---|
| (→ Subjects.ID) | ||||
| 1 | Mathematics for Beginners | John Doe | 978-0-123-456789 | 1 |
| 2 | The World of Physics | Jane Smith | 978-0-091-234567 | 2 |
| 3 | An Introduction to Biology | Michael Brown | 978-1-234-567890 | 3 |
| 4 | A Brief History of Time | Stephen Hawking | 978-0-123-987654 | 4 |
| 5 | To Kill a Mockingbird | Harper Lee | 978-0-123-123456 | 5 |
| ID | CourseName | Instructor | Platform | URL | SubjectID |
|---|---|---|---|---|---|
| (→ Subjects.ID) | |||||
| 1 | Introductory Math | Prof. James Johnson | Udemy | https://www.udemy.com/introductory-math | 1 |
| 2 | Essential Physics | Dr. Emily White | Coursera | https://www.coursera.org/physics | 2 |
| 3 | Foundations of Biology | Dr. Robert Green | edX | https://www.edx.org/biology | 3 |
| 4 | Global History Survey | Dr. Susan King | FutureLearn | https://www.futurelearn.com/history | 4 |
| 5 | Great Literary Works | Ms. Karen Taylor | LinkedIn Learning | https://www.linkedinlearning.com/literature | 5 |
| StudentID | FirstName | LastName | Age | PhoneNumber | |
|---|---|---|---|---|---|
| 1 | Alice | Smith | 20 | alicesmith@example.com | +1-123-456-7890 |
| 2 | Bob | Johnson | 21 | bobjohnson@example.com | +1-987-654-3210 |
| 3 | Charlie | Williams | 22 | charliewilliams@example.com | +1-555-123-4567 |
| 4 | David | Martinez | 23 | davidmartinez@example.com | +1-321-654-9870 |
| 5 | Eva | Garcia | 24 | evagarcia@example.com | +1-789-456-1234 |