ORM Mapped Class Configuration

Detailed reference for ORM configuration, not including relationships, which are detailed at Relationship Configuration.

For a quick look at a typical ORM configuration, start with ORM Quick Start.

For an introduction to the concept of object relational mapping as implemented in SQLAlchemy, it’s first introduced in the SQLAlchemy 1.4 / 2.0 Tutorial at Defining Table Metadata with the ORM.