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SQLAlchemy Documentation
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SQLAlchemy 1.2 Documentation
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Release: <span class="version-num">1.2.19</span>
| Release Date: April 15, 2019
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<h1>SQLAlchemy 1.2 Documentation</h1>
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<div class="section" id="sqlalchemy-documentation">
<span id="index-toplevel"></span><h1>SQLAlchemy Documentation<a class="headerlink" href="#sqlalchemy-documentation" title="Permalink to this headline">¶</a></h1>
<div class="section" id="getting-started">
<h2>Getting Started<a class="headerlink" href="#getting-started" title="Permalink to this headline">¶</a></h2>
<p>A high level view and getting set up.</p>
<p><a class="reference internal" href="intro.html"><span class="doc">Overview</span></a> |
<a class="reference internal" href="intro.html#installation"><span class="std std-ref">Installation Guide</span></a> |
<a class="reference internal" href="faq/index.html"><span class="doc">Frequently Asked Questions</span></a> |
<a class="reference internal" href="changelog/migration_12.html"><span class="doc">Migration from 1.1</span></a> |
<a class="reference internal" href="glossary.html"><span class="doc">Glossary</span></a> |
<a class="reference internal" href="errors.html"><span class="doc">Error Messages</span></a> |
<a class="reference internal" href="changelog/index.html"><span class="doc">Changelog catalog</span></a></p>
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<div class="section" id="sqlalchemy-orm">
<h2>SQLAlchemy ORM<a class="headerlink" href="#sqlalchemy-orm" title="Permalink to this headline">¶</a></h2>
<p>Here, the Object Relational Mapper is introduced and
fully described. If you want to work with higher-level SQL which is
constructed automatically for you, as well as automated persistence
of Python objects, proceed first to the tutorial.</p>
<ul class="simple">
<li><p><strong>Read this first:</strong>
<a class="reference internal" href="orm/tutorial.html"><span class="doc">Object Relational Tutorial</span></a></p></li>
<li><p><strong>ORM Configuration:</strong>
<a class="reference internal" href="orm/mapper_config.html"><span class="doc">Mapper Configuration</span></a> |
<a class="reference internal" href="orm/relationships.html"><span class="doc">Relationship Configuration</span></a></p></li>
<li><p><strong>Configuration Extensions:</strong>
<a class="reference internal" href="orm/extensions/declarative/index.html"><span class="doc">Declarative Extension</span></a> |
<a class="reference internal" href="orm/extensions/associationproxy.html"><span class="doc">Association Proxy</span></a> |
<a class="reference internal" href="orm/extensions/hybrid.html"><span class="doc">Hybrid Attributes</span></a> |
<a class="reference internal" href="orm/extensions/automap.html"><span class="doc">Automap</span></a> |
<a class="reference internal" href="orm/extensions/mutable.html"><span class="doc">Mutable Scalars</span></a> |
<a class="reference internal" href="orm/extensions/indexable.html"><span class="doc">Indexable</span></a></p></li>
<li><p><strong>ORM Usage:</strong>
<a class="reference internal" href="orm/session.html"><span class="doc">Session Usage and Guidelines</span></a> |
<a class="reference internal" href="orm/loading_objects.html"><span class="doc">Loading Objects</span></a> |
<a class="reference internal" href="orm/extensions/baked.html"><span class="doc">Cached Query Extension</span></a></p></li>
<li><p><strong>Extending the ORM:</strong>
<a class="reference internal" href="orm/extending.html"><span class="doc">ORM Events and Internals</span></a></p></li>
<li><p><strong>Other:</strong>
<a class="reference internal" href="orm/examples.html"><span class="doc">Introduction to Examples</span></a></p></li>
</ul>
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<div class="section" id="sqlalchemy-core">
<h2>SQLAlchemy Core<a class="headerlink" href="#sqlalchemy-core" title="Permalink to this headline">¶</a></h2>
<p>The breadth of SQLAlchemy’s SQL rendering engine, DBAPI
integration, transaction integration, and schema description services
are documented here. In contrast to the ORM’s domain-centric mode of usage, the SQL Expression Language provides a schema-centric usage paradigm.</p>
<ul class="simple">
<li><p><strong>Read this first:</strong>
<a class="reference internal" href="core/tutorial.html"><span class="doc">SQL Expression Language Tutorial</span></a></p></li>
<li><p><strong>All the Built In SQL:</strong>
<a class="reference internal" href="core/expression_api.html"><span class="doc">SQL Expression API</span></a></p></li>
<li><p><strong>Engines, Connections, Pools:</strong>
<a class="reference internal" href="core/engines.html"><span class="doc">Engine Configuration</span></a> |
<a class="reference internal" href="core/connections.html"><span class="doc">Connections, Transactions</span></a> |
<a class="reference internal" href="core/pooling.html"><span class="doc">Connection Pooling</span></a></p></li>
<li><p><strong>Schema Definition:</strong>
<a class="reference internal" href="core/schema.html"><span class="doc">Overview</span></a> |
<a class="reference internal" href="core/metadata.html"><span class="std std-ref">Tables and Columns</span></a> |
<a class="reference internal" href="core/reflection.html"><span class="std std-ref">Database Introspection (Reflection)</span></a> |
<a class="reference internal" href="core/defaults.html"><span class="std std-ref">Insert/Update Defaults</span></a> |
<a class="reference internal" href="core/constraints.html"><span class="std std-ref">Constraints and Indexes</span></a> |
<a class="reference internal" href="core/ddl.html"><span class="std std-ref">Using Data Definition Language (DDL)</span></a></p></li>
<li><p><strong>Datatypes:</strong>
<a class="reference internal" href="core/types.html"><span class="std std-ref">Overview</span></a> |
<a class="reference internal" href="core/custom_types.html#types-custom"><span class="std std-ref">Building Custom Types</span></a> |
<a class="reference internal" href="core/type_api.html#types-api"><span class="std std-ref">API</span></a></p></li>
<li><p><strong>Core Basics:</strong>
<a class="reference internal" href="core/api_basics.html"><span class="doc">Overview</span></a> |
<a class="reference internal" href="core/inspection.html"><span class="doc">Runtime Inspection API</span></a> |
<a class="reference internal" href="core/event.html"><span class="doc">Event System</span></a> |
<a class="reference internal" href="core/events.html"><span class="doc">Core Event Interfaces</span></a> |
<a class="reference internal" href="core/compiler.html"><span class="doc">Creating Custom SQL Constructs</span></a> |</p></li>
</ul>
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<div class="section" id="dialect-documentation">
<h2>Dialect Documentation<a class="headerlink" href="#dialect-documentation" title="Permalink to this headline">¶</a></h2>
<p>The <strong>dialect</strong> is the system SQLAlchemy uses to communicate with various types of DBAPIs and databases.
This section describes notes, options, and usage patterns regarding individual dialects.</p>
<p><a class="reference internal" href="dialects/postgresql.html"><span class="doc">PostgreSQL</span></a> |
<a class="reference internal" href="dialects/mysql.html"><span class="doc">MySQL</span></a> |
<a class="reference internal" href="dialects/sqlite.html"><span class="doc">SQLite</span></a> |
<a class="reference internal" href="dialects/oracle.html"><span class="doc">Oracle</span></a> |
<a class="reference internal" href="dialects/mssql.html"><span class="doc">Microsoft SQL Server</span></a></p>
<p><a class="reference internal" href="dialects/index.html"><span class="doc">More Dialects …</span></a></p>
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