I'm going to start off my series of MySQL tutorials with a basic overview of a simple relational database model. This model was created in MySQL Workbench, but I will also plan to cover the same example in Jet Brain's new 0xDBE, and as a simple SQL script in separate posts. The start of this series will be very basic, and these tutorials are aimed at programmers who want a basic understanding of SQL languages and relational databases. With that in mind lets start with the entity relationship diagram for this example. This may be a little confusing to look at initially, but it will all make sense in time.