Postgresql Development Tutorials, Guides & Insights
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Configuring SQLAlchemy with PostgreSQL on Heroku: A Quick Guide
Heroku's DATABASE_URL uses the older postgres:// scheme, which isn't compatible with the latest SQLAlchemy requirements. Starting with SQLAlchemy 1.4, postgres:// is considered deprecated and no longer supported. The explicit postgresql+psycopg2:// scheme is required.
Without this replacement, SQLAlchemy might throw an error like:
How to view tables on a PostgreSQL database hosted on Heroku
heroku config:get DATABASE_URL -a <your-app-name>This will display a URL in the format: postgres://<user>:<password>@<host>:<port>/<database>