# Schema Migration [[Data Engineering]] [[Databases]] See also: - [[Categorical Databases]] where schema migrations are functors between schemas, where each schema is its own category. # Links - [Zero Downtime Database Changes with Feature Flags - Step by Step](https://reflectoring.io/zero-downtime-deployments-with-feature-flags/) From a discussion on twitter, I'm not fully sure how this relates to schema migration - [[jeanqasaur - 1583554473875492865]] - [Version Control for Structure Editing – Alarming Development](https://alarmingdevelopment.org/?p=1570)