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PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

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As I said, the number of tables in a relational database is a good measure of the complexity. But the complexity of what? Well, a complex database may have been designed to be deliberately flexible in order to cover a variety of business situations, or, a complex business process may have a limited portion of its details covered in the database. So, a large number of tables might likely reveal a complex business process or just a complex piece of software.

The highest number of distinct, major tables I've ever seen in a database is 20,000, not counting partitions, views, and work tables. That clearly rates as a very complex system:

Number of distinct tables (entities) Complexity rating
20,000 This is incredibly complex. ...
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Publisher Resources

ISBN: 9781788474924Supplemental Content