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.. _glossary:
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Glossary
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.. glossary::
:sorted:
repository
A migration repository contains :command:`manage.py`, a configuration
file (:file:`migrate.cfg`) and the database :term:`changeset` scripts
which can be Python scripts or SQL files.
changeset
A set of instructions how upgrades and downgrades to or from a specific
version of a database schema should be performed.
ORM
Abbreviation for "object relational mapper". An ORM is a tool that maps
object hierarchies to database relations.
version
A version in SQLAlchemy migrate is defined by a :term:`changeset`.
Versions may be numbered using ascending numbers or using timestamps
(as of SQLAlchemy migrate release 0.7.2)
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