So help me Codd

But that notion of a “primary key” or identifier to point out the relevant part of a table was not easily grasped by experts at the time. The elegance of the concept was immortalized by one of Codd’s followers, Bill Kent. Speaking of the relational model, Kent once said, “The relation is based on the primary key, the whole key and nothing but the key, so help me Codd.”

(bron: Ted Codd, Chris Date – IT Channel – IT Channel News by CRN and VARBusiness)

Afgelopen zaterdag heb ik het examen databasesystemen afgelegd. Het doet goed om te lezen dat de experten toendertijd er ook al niet aan uit konden.