Lecture 3 is a presentation of the fundamental method of the development of the schema of a relational database. This method consists of two steps. During the first step we design the data model of ...

I have always used Visio to build database schemas. However, with the latest version of Visio, I think Microsoft has really dropped the ball -- the cardinalities are microscopic and nearly impossible ...

Lecture 4 consists of four parts. In the first we present two alternative notations for entity-relationship diagrams. In practice many different notations are used and one best standard does not exist ...