10 Persistence is good: Databases
This chapter covers
- Persisting data
- Database systems
- Database structures
- Modeling data with SQLAlchemy
You’ve shown a great deal of persistence in getting this far, and I hope the journey has been rewarding and held your interest. As satisfying as sticking with something is, that kind of persistence isn’t what this chapter covers.
This chapter is about persisting application data over time. You don’t run the applications you use forever, and despite the stability of computer systems, they are shut down and restarted periodically.
Imagine using a complex spreadsheet and having to re-enter all the data every time you restarted the application or powered on the computer. Even with the enormous processing power ...
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