Summary

We looked at the basics of using SQLite in three ways: directly, via an access layer, and via the SQLAlchemy ORM. We have to create SQL DDL statements; we can do this directly in our applications or in an access layer. We can also have DDL built by the SQLAlchemy class definitions. To manipulate data, we'll use SQL DML statements; we can do this directly in a procedural style, or we can use our own access layer or SQLAlchemy to create the SQL.

Design considerations and tradeoffs

One of the strengths of the sqlite3 module is that it allows us to persist distinct objects, each with its own unique change history. When using a database that supports concurrent writes, we can have multiple processes updating the data...