Release: 2.1.0b1 | Release Date: January 21, 2026

# SQLAlchemy 2.1 Documentation

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### SQLAlchemy ORM

- ORM Quick Start
- ORM Mapped Class Configuration
  - ORM Mapped Class Overview
  - Mapping Classes with Declarative
  - Integration with dataclasses and attrs
  - SQL Expressions as Mapped Attributes
  - Changing Attribute Behavior
  - Composite Column Types
  - Mapping Class Inheritance Hierarchies
  - Non-Traditional Mappings
  - Configuring a Version Counter
  - Class Mapping API
  - Mapping SQL Expressions
    - Mapping Table Columns
- Relationship Configuration
- ORM Querying Guide
- Using the Session
- Events and Internals
- ORM Extensions
- Core and ORM Examples

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- SQLAlchemy ORM

- ORM Mapped Class Configuration

- Mapping SQL Expressions

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- Mapping Table Columns

# Mapping Table Columns

This section has been integrated into the Table Configuration with Declarative section.

Previous: Mapping SQL Expressions Next: Relationship Configuration
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