Student
| ID | Name |
| 1 | Alice Johnson |
| 2 | Bob Smith |
| 3 | Carol Williams |
| 4 | David Brown |
| 5 | Eva Green |
Attendance
| AttendID | StudentID | Date | Status |
| (→ Student.ID) | | |
| 1 | 1 | 2023-01-01 | Present |
| 2 | 2 | 2023-01-01 | Absent |
| 3 | 1 | 2023-01-02 | Present |
| 4 | 2 | 2023-01-02 | Absent |
| 5 | 3 | 2023-01-01 | Present |
| 6 | 4 | 2023-01-01 | Present |
Grades
| GradeID | StudentID | Subject | Score |
| (→ Student.ID) | | |
| 1 | 1 | Math | 98 |
| 2 | 2 | English | 87 |
| 3 | 1 | History | 93 |
| 4 | 2 | Biology | 76 |
| 5 | 3 | Chemistry | 92 |
| 6 | 4 | Physics | 97 |
Teacher
| TeachID | Name |
| 1 | Mr. White |
| 2 | Mrs. Black |
| 3 | Ms. Blue |
| 4 | Dr. Red |
| 5 | Professor Green |
Classroom
| ClassID | TeachID | Location |
| (→ Teacher.TeachID) | |
| 1 | 1 | Room A |
| 2 | 2 | Room B |
| 3 | 3 | Room C |
| 4 | 4 | Room D |
| 5 | 5 | Room E |
Enrollment
| EnrollID | StudentID | ClassID |
| (→ Student.ID) | (→ Classroom.ClassID) |
| 1 | 1 | 1 |
| 2 | 2 | 2 |
| 3 | 3 | 3 |
| 4 | 4 | 4 |
| 5 | 5 | 5 |