Relationships in Databases

Design a Many-to-Many Relationship

Create tables to represent students and courses with a many-to-many relationship using a junction table.

Expected output: SQL statements creating Students, Courses, and Enrollment tables with appropriate keys.

Hint: Use a third table with foreign keys referencing both students and courses.

A foreign key is a field in one table that uniquely identifies a row of another table. It is important because it enforces referential integrity and defines relationships between tables.

By creating a junction table that contains foreign keys referencing the primary keys of the two related tables, effectively breaking the many-to-many relationship into two one-to-many relationships.

In a one-to-one relationship, each record in one table corresponds to exactly one record in another table. In a one-to-many relationship, one record in a table can relate to multiple records in another table.