Student and course entity relationship to relational data model

Answer 1

One possible way to represent the relationship between a student and a course in a relational data model is by using three tables:

1. Student table: This table will store information about each student, such as their student ID, name, and other details.

Columns: student_id (Primary Key), student_name, ...

2. Course table: This table will store information about each course, such as the course ID, course name, and other details.

Columns: course_id (Primary Key), course_name, ...

3. Enrollment table: This table will represent the relationship between the students and the courses they are enrolled in. It will have foreign keys referencing the student ID and course ID from the respective tables.

Columns: enrollment_id (Primary Key), student_id (Foreign Key), course_id (Foreign Key), ...

This model allows for a many-to-many relationship between students and courses, meaning that a student can be enrolled in multiple courses, and a course can have multiple students enrolled in it.

In this model, the Enrollment table acts as a junction or linking table, connecting the Student and Course tables. The enrollment_id column serves as a unique identifier for each enrollment record.

Whenever a student enrolls in a course, a new record is added to the Enrollment table, specifying the student_id and course_id of the enrollment. This allows for easy retrieval of information such as which students are enrolled in a particular course or which courses a specific student is taking.