D1 Migration Workflow

Guided workflow for Cloudflare D1 database migrations using Drizzle ORM.

Standard Migration Flow

1. Generate Migration

pnpm db:generate

This creates a new .sql file in drizzle/ (or your configured migrations directory).

2. Inspect the SQL (CRITICAL)

Always read the generated SQL before applying. Drizzle sometimes generates destructive migrations for simple schema changes.

Red Flag: Table Recreation