"Designing a database is very easy to do, but hard to do well. There are many databases that have been built in the world that do not meet the needs of the applications they support.
The fundamentals of design are often not taught to developers or DBAs when they are given the task of building tables. Many people do not understand the logic used to decide what columns to use, the data types for each one, constraints between columns, and the keys that should be defined.
Joe Celko, widely viewed as an expert in the SQL language, brings us a series that looks to help you understand the fundamentals of the design process. The articles in the series are linked below..."
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