Difficulty_Level

IDLevel
1Beginner
2Advanced
3Expert

Subjects

IDNameDescriptionDifficultyID
(→ Difficulty_Level.ID)
1MathIntroduction to Mathematics1
2PhysicsBasic Principles of Physics2
3BiologyBasics of Biological Sciences3
4HistoryWorld History Overview1
5LiteratureClassic Novels Analysis2

Textbooks

IDTitleAuthorISBNSubjectID
(→ Subjects.ID)
1Mathematics for BeginnersJohn Doe978-0-123-4567891
2The World of PhysicsJane Smith978-0-091-2345672
3An Introduction to BiologyMichael Brown978-1-234-5678903
4A Brief History of TimeStephen Hawking978-0-123-9876544
5To Kill a MockingbirdHarper Lee978-0-123-1234565

Online_Courses

IDCourseNameInstructorPlatformURLSubjectID
(→ Subjects.ID)
1Introductory MathProf. James JohnsonUdemyhttps://www.udemy.com/introductory-math1
2Essential PhysicsDr. Emily WhiteCourserahttps://www.coursera.org/physics2
3Foundations of BiologyDr. Robert GreenedXhttps://www.edx.org/biology3
4Global History SurveyDr. Susan KingFutureLearnhttps://www.futurelearn.com/history4
5Great Literary WorksMs. Karen TaylorLinkedIn Learninghttps://www.linkedinlearning.com/literature5

EnrolledStudents

StudentIDFirstNameLastNameAgeEmailPhoneNumber
1AliceSmith20alicesmith@example.com+1-123-456-7890
2BobJohnson21bobjohnson@example.com+1-987-654-3210
3CharlieWilliams22charliewilliams@example.com+1-555-123-4567
4DavidMartinez23davidmartinez@example.com+1-321-654-9870
5EvaGarcia24evagarcia@example.com+1-789-456-1234