October 2017
Beginner to intermediate
316 pages
8h
English
The original database management systems were developed by legendary computer scientists such as Charles Bachman, who gave a lot of thought to the way software should be built in a world of extremely scarce computing resources. Bachman invented a very natural (and as we will see later, graphical) way to model data: as a network of interrelated things. The starting point of such a database design was generally a Bachman diagram (refer to the following diagram), which immediately feels like it expresses the model of the data structure in a very graph-like fashion:

These diagrams were the starting points ...
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