© George Tillmann 2017

George Tillmann, Usage-Driven Database Design, 10.1007/978-1-4842-2722-0_6

6. LDM Pitfalls

George Tillmann

(1)Ship Bottom, New Jersey, USA

I think knowing what you cannot do is more important than knowing what you can.

—Lucille Ball

But then it dawned on me that the opinion of someone who is always wrong has its own special utility to decision-makers.

—Warren Buffett

Chapter 5, the “do’s,” should help with some thorny logical data modeling situations by presenting best practices from some of the best data modelers in the business. There is also an almost equal number of best-practice don’ts. Sometimes the don’ts are more useful than the do’s.

Chapter Subjects

Circular relationships

Data values

Data value–differentiated entities ...

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