12 Rules for a relational database by EF Codd.

The paper that started it all. The first public statement of the Relational Model.

A Simple Guide to Five Normal Forms in Relational Database Theory

Articles by Christopher J Date about how the relational model can fulfill all OO needs. Web-only articles from DBPD that never made to print.

Articles by Christohper J Date with emphasis on foundations. Web published by DBPD after the print magazine folded.

Contrarian articles by Fabian Pascal about the necessity of getting the relational model properly implemented.

Succint, itemized explanation of 12 Rules by EF Codd.

Analysis of various systems and ideas floating in the database scene, against the standards set by the relational model for database management.

Provides a basic introduction to relational databases theory.

12 rules for a relational database management system, by the relational model's author. Outdated but still useful.

Containing several short, insightful articles by David McGoveran on the relevance of the Relational Model to enterprise application integration.

RM/T: semantics modeling in the relational model for database management.

Opinions fundamented on the relational model about NULLs, SQL and DBMS

Series of relational database model articles by Chris J Date, with emphasis on rules applications. Registration required.

Concentrating on the 12 Rules from EF Codd and a succint, informal definition of normalisation with examples.

Bi-monthly journal about conceptual modelling and mainly relational database design.

The five normal forms succintly, informally described.

This is a proposal for a strictly relational system. It is intended to be more powerful than SQL or object DBMSs. File in PostScript format.

Additional material related to the book.

A proposal to avoid default or special values, SQL NULLs and three-valued logic in the representation of missing information.