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From SQLite to PostgreSQL

Discover how to move from SQLite to PostgreSQL by updating connection strings and managing database users and passwords. Learn practical steps for configuring PostgreSQL on different operating systems and integrating it with Python using SQLAlchemy for full stack applications.

Now, we’re going to transition from SQLite to PostgreSQL. While there are some exceptions, we usually only need to change the connection string.

Setting up Postgres user and password

By default, Postgres on Mac installed with Homebrew will allow connections without a password. In Windows, the default is to require the password. We can turn that off by changing the file C:\Program Files\PostgreSQL\11\data\pg_hba.conf by replacing instances ...