The `MetaData` class in Python's SQLAlchemy is a container that keeps track of all database objects (such as tables, views, and indexes) in a database schema. It provides a way to define and manage the structure of a database by allowing the creation, alteration, and dropping of these objects. `MetaData` acts as a central repository where all information about the database schema can be stored and accessed, making it easier to interact with the database and perform operations such as querying, inserting, or updating data. It also allows for the reflection of existing database schemas, meaning that existing tables and their structures can be automatically loaded into the `MetaData` object, enabling seamless integration between Python code and the underlying database.
Python MetaData - 60 examples found. These are the top rated real world Python examples of sqlalchemy.schema.MetaData extracted from open source projects. You can rate examples to help us improve the quality of examples.