Chapter 10. Adding persistent data to applications
It matters if you just don’t give up.
—Stephen Hawking
No applications that are expected to be more than just a basic exercise can operate without persistent data. As users work with the application, they produce information by entering fresh data or processing known values. This information will not be lost with the shutdown of the application. This information is vital and must be persisted somewhere to be reloaded on the next session or on demand.
To make data persistent, software uses files; sometimes applications make use of very special files known as databases. A database is ultimately a large collection of files owned and managed by a specific and distinct application. Interacting with a ...
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