It seems as if it should be simple. Within a normalized database model, a one-to-many relationship is represented by establishing a foreign key on the entity at the many-side of the binary ...

Often one reads a book or hears a presenter making a pun about relational theory being called “relational” because of entities being “related.” Such references are nothing but misplaced puns.

The proper way to define 3-table relations in MySQL and PostgreSQL differ. In MySQL, the index on the associative entity should only contain the second column of the primary key. In PostgreSQL, the ...

What's the purpose of the Timestamp? To allow a student to register for a class in multiple semesters? If that's the case I would suggest you abstract out the Semester and inlclude a SemesterID in the ...