July 2016
Beginner to intermediate
462 pages
9h 14m
English
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Implementing a star schema with fact and dimension tables
The star schema is a database pattern that facilitates reporting. Star schemas are appropriate for the processing of events, such as website visits, ad clicks, or financial transactions. Event information (metrics, such as temperature or purchase amount) is stored in fact tables linked to much smaller dimension tables. Star schemas are denormalized, which places the responsibility of integrity checks to the application code. For this reason, we should only write to the database in a controlled manner. If you use SQLAlchemy for bulk inserts, you should choose the Core API over the ORM API or use straight SQL. You can read more about the reasons at http://docs.sqlalchemy.org/en/rel_1_0/faq/performance.html ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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