Relationships API — SQLAlchemy 2.0 Documentation
function sqlalchemy.orm.relationship(argument: _RelationshipArgumentType[Any] | None = None, secondary: _RelationshipSecondaryArgument | None = None, *, uselist: bool | None = None, collection_class: Type[Collection[Any]] | Callable[[], Collection[Any]] | None = None, primaryjoin: _RelationshipJoinConditionArgument | None = None, secondaryjoin: _RelationshipJoinConditionArgument | None = None, bac
Basic Relationship Patterns — SQLAlchemy 2.0 Documentation
Basic Relationship Patterns¶ A quick walkthrough of the basic relational patterns, which in this section are illustrated using Declarative style mappings based on the use of the Mapped annotation type. The setup for each of the following sections is as follows: from __future__ import annotations from typing import List from sqlalchemy import ForeignKey from sqlalchemy import Integer from sqlalchem
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