Relational Databases and Microsoft Access 365

An open textbook on designing relational databases. It teaches data modeling, entity-relationship diagrams, integrity rules, functional dependencies, and normalization, and closes with SQL exercises.

Adrienne Watt and Nelson Eng

Essays on The Third Manifesto by two pioneers of relational theory. They examine types, relation variables, missing information, normal forms, and the design of the Tutorial D language.

C. J. Date and Hugh Darwen