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Hour 9. Creating Relationships > Introduction to Relational Database Design

Introduction to Relational Database Design

Many people believe Access is such a simple product to use that database design is something they don't need to worry about. I couldn't disagree more! Just as a poorly planned vacation will generally not be very much fun, a database with poorly designed tables and relationships will fail to meet the needs of its users.

The History of Relational Database Design

Dr. E. F. Codd first introduced formal relational database design in 1969 while he was at IBM. Relational theory, which is based on set theory and predicate logic, applies to both databases and database applications. Codd developed 12 rules that determine how well an application and its data adhere to the relational model. Since Codd first conceived these 12 rules, the number of rules has expanded into the hundreds.



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