Hour 3
Getting to Know Your Data
What You’ll Learn in This Hour:
▶ An introduction to the database used in examples and exercises
▶ Diagrams that show data and relationships
▶ Lists of data by table
Welcome to Hour 3! Now you get to know the data you will use for all the exercises and examples in the rest of the book. In this hour, you look at the data itself, attributes of the data, the way data might be used, potential customers, and more. You also check out T relationship diagrams that focus on the tables used in this book and the columns in those tables; these diagrams illustrate the relationships between the tables. Finally, a list of data is provided from each table so that you can see what the data actually looks like. You get ...
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