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SQLAlchemy 2.1 Documentation
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
- Relationship Configuration
- ORM Querying Guide
- Using the Session
- Events and Internals
- ORM Extensions
- ORM Examples
Project Versions
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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 Unified Tutorial at Using ORM Declarative Forms to Define Table Metadata.
- ORM Mapped Class Overview
- Mapping Classes with Declarative
- Declarative Mapping Styles
- Table Configuration with Declarative
- Declarative Table with
mapped_column()
- Using Annotated Declarative Table (Type Annotated Forms for
mapped_column()
) - Accessing Table and Metadata
- Declarative Table Configuration
- Explicit Schema Name with Declarative Table
- Setting Load and Persistence Options for Declarative Mapped Columns
- Naming Declarative Mapped Columns Explicitly
- Appending additional columns to an existing Declarative mapped class
- Using Annotated Declarative Table (Type Annotated Forms for
- Declarative with Imperative Table (a.k.a. Hybrid Declarative)
- Mapping Declaratively with Reflected Tables
- Declarative Table with
- Mapper Configuration with Declarative
- Composing Mapped Hierarchies with Mixins
- Augmenting the Base
- Mixing in Columns
- Mixing in Relationships
- Mixing in
_orm.column_property()
and other_orm.MapperProperty
classes - Using Mixins and Base Classes with Mapped Inheritance Patterns
- Combining Table/Mapper Arguments from Multiple Mixins
- Creating Indexes and Constraints with Naming Conventions on Mixins
- 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
registry
add_mapped_attribute()
column_property()
declarative_base()
declarative_mixin()
as_declarative()
mapped_column()
declared_attr
DeclarativeBase
DeclarativeBaseNoMeta
has_inherited_table()
synonym_for()
object_mapper()
class_mapper()
configure_mappers()
clear_mappers()
identity_key()
polymorphic_union()
orm_insert_sentinel()
reconstructor()
Mapper
Mapper.__init__()
Mapper.add_properties()
Mapper.add_property()
Mapper.all_orm_descriptors
Mapper.attrs
Mapper.base_mapper
Mapper.c
Mapper.cascade_iterator()
Mapper.class_
Mapper.class_manager
Mapper.column_attrs
Mapper.columns
Mapper.common_parent()
Mapper.composites
Mapper.concrete
Mapper.configured
Mapper.entity
Mapper.get_property()
Mapper.get_property_by_column()
Mapper.identity_key_from_instance()
Mapper.identity_key_from_primary_key()
Mapper.identity_key_from_row()
Mapper.inherits
Mapper.is_mapper
Mapper.is_sibling()
Mapper.isa()
Mapper.iterate_properties
Mapper.local_table
Mapper.mapped_table
Mapper.mapper
Mapper.non_primary
Mapper.persist_selectable
Mapper.polymorphic_identity
Mapper.polymorphic_iterator()
Mapper.polymorphic_map
Mapper.polymorphic_on
Mapper.primary_key
Mapper.primary_key_from_instance()
Mapper.primary_mapper()
Mapper.relationships
Mapper.selectable
Mapper.self_and_descendants
Mapper.single
Mapper.synonyms
Mapper.tables
Mapper.validators
Mapper.with_polymorphic_mappers
MappedAsDataclass
MappedClassProtocol
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ORM Quick Start
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ORM Mapped Class Overview
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