Database 101
At the time that Guy wrote Database 101, he was helping a company that sold a contact-management application.
He wrote this book for computer novices to help them understand how a database works and what can be done with one.
This was back in 1991, so many things about databases have changed, but many basic principles have also remained the same.
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Here’s where you can buy Database 101:
Free Download
Guy has made Database 101 free in a PDF format: