Stage 8: Generate and review DDL
Knobit of Data modelling · K-857 · Knowledge
Explains schema migration and rollback
What it means
Changes to a populated database need migrations and backfills; dropping tables is not a rollback.
How it is assessed
Plans the migration and rollback for sample changes
Builds on
- None
Needed by
- Recognises greenfield DDL aimed at a populated databaseK-822 · Skill
- Recognises a drop script used as a rollbackK-823 · Skill