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Describing Databases with MetaData — SQLAlchemy 2.0 Documentation

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Working with Database Metadata - tutorial introduction to SQLAlchemy’s database metadata concept in the SQLAlchemy Unified Tutorial A collection of metadata entities is stored in an object aptly named MetaData: MetaData is a container object that keeps together many different features of a database (or multiple databases) being described. To represent a table, use the Table class. Its two primary arguments are the table name, then the MetaData object which it will be associated with. The remaining positional arguments are mostly Column objects describing each column: Above, a table called user is described, which contains four columns. The primary key of the table consists of the user_id column. Multiple columns may be assigned the primary_key=True flag which denotes a multi-column primary key, known as a composite primary key. Note also that each column describes its datatype using objects corresponding to genericized types, such as Integer and String. SQLAlchemy features dozens of ty

Describing Databases with MetaData - SQLAlchemy 2.0 Documentation via SQLAlchemy adapter --> Release: 2.0.51 current release | Release Date: June 15, 2026 SQLAlchemy 2.0 Documentation SQLAlchemy 2.0 Documentation current release Home | Download this Documentation Search terms: SQLAlchemy Core SQL Statements and Expressions API Schema Definition Language Describing Databases with MetaData ¶ Accessing Tables and Columns Creating and Dropping Database Tables Altering Database Objects through Migrations Specifying the Schema Name Specifying a Default Schema Name with MetaData Applying Dynamic Sche

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