Build a CRUD App with SQLAlchemy – One-to-Many Relationship

There are 3 types of relationships in relational database design:
One-to-OneOne-to-Many (or Many-to-One)Many-to-Many

One-to-One A row in table A can have only one matching row in table B, and vice versa.
This is not a common relationship type, as the data stored in table B could just have easily been stored in table A. However, there are some valid reasons for using this relationship type. A one-to-one r

Build a CRUD App with SQLAlchemy – One-to-Many Relationship最先出现在Python成神之路。