# toolchains-elixir-data-ecto-patterns > Ecto is the data layer for Phoenix applications: schemas, changesets, queries, migrations, and transactions. Good Ecto practice keeps domain logic in contexts, enforces constraints in the database, and uses transactions for multi-step workflows. - Author: mac - Repository: MacPhobos/research-mind - Version: 20260131221116 - Stars: 0 - Forks: 0 - Last Updated: 2026-02-06 - Source: https://github.com/MacPhobos/research-mind - Web: https://mule.run/skillshub/@@MacPhobos/research-mind~toolchains-elixir-data-ecto-patterns:20260131221116