One of the most important steps in desiging a database is establishing the data model. Part one of a two-part article describes how to create a logical model.

Logical Schema. A logical data model or logical schema is a representation of ... such as an object, a concept, or a piece of data. The entity-relationship data modeling technique was developed ...

What does EVERYTHING mean? As the answers to these questions are unraveled, the data model arises. Your data model is a creature built of logic and as such is something that can be easily digested by ...

One might be kind when confronted with a data model where everything has a generated primary key and assume such models are physical-only data models. And further assume that were someone to make an ...