This collection of writings investigates the foundational principles and theoretical integrity of the relational model for database management. C. J. Date, a recognized authority in database theory and a long-time collaborator with E. F. Codd, compiles his technical essays to clarify common misconceptions and reinforce the rigorous logic required for effective data architecture. The text serves as a defense of the relational model against deviations in commercial implementations.

Experts and database professionals frequently cite this work as a critical resource for understanding the theoretical underpinnings of relational systems. Readers often note the high level of technical density, making it a text best suited for those with a strong background in computer science or database design.