gh-greyhaven-ai-claude-code-config-grey-haven-plugins-data-quality/skills/database-conventions/examples/migrations.md

Migration Examples

Migration patterns for Drizzle (TypeScript) and Alembic (Python).

Drizzle Migrations (TypeScript)

# Generate migration
bun run drizzle-kit generate:pg

# Apply migration
bun run drizzle-kit push:pg

# Check migration status
bun run drizzle-kit check:pg

Alembic Migrations (Python)

# Generate migration
alembic revision --autogenerate -m "Add users table"

# Apply migration
alembic upgrade head

# Rollback
alembic downgrade -1

See ../reference/migrations.md for complete setup.