Getting Started with Python

I have some tables like this: class Genre(db.Model): id = db.Column(db.Integer, primary_key=Tru… Read more Sqlalchemy: Filter Many-to-one Relationship Where The One Object Has A List Containing A Specific Value

I've seen a lot of problems with SessionMaker, but this one is slightly different. Not sure wh… Read more Sqlalchemy Flask: Attributeerror: 'session' Object Has No Attribute '_model_changes' On Session.commit()

I am using Python 3.8.1 Flask latest and app running fine but unable to connect the docker volume f… Read more How To Connect Docker Volume 'database/app.db' To Sqlalchemy?

So here's my problem: I created a heroku app that is working as expected, although when the app… Read more Added Database Records Are Deleted After Restarting App (heroku/sqlalchemy)

With this simplified model: class User(db.Model): id = db.Column(db.Integer, primary_key=True)… Read more When Accessed Similarly, Why Does A Sqlalchemy Relationship Return Differently?

I am trying to make a circular one-to-one relationship (not sure what the correct term is) with SQL… Read more Sqlalchemy Circular One-to-one Relationship

I want to make a new table in my database (Oracle 11g but the Express Edition for Ubuntu 16.04) usi… Read more Flask-sqalchemy And Oracle Database Id Not Autoincrement

I have a simple Python script (models.py) to create a Flask-SQLAlchemy app and a simple sqlalchemy … Read more Cannot Test Simple Sqlalchemy Model Dataclass: "mapper Mapped Class Could Not Assemble Any Primary Key Columns For Mapped Table"