While Ted Codd is no longer around, Chris Date is, and even he has admitted the original "academic" notion of what constitutes a proper relational domain in SQL

While Ted Codd is no longer around, Chris Date is, and even he has admitted the original "academic" notion of what constitutes a proper relational domain in SQL was incomplete/flawed. I can't recommend this presentation enough with regard to modern relational design: https://youtu.be/swR33jIhW8Q https://youtu.be/swR33jIhW8Q