drizzle-kit check command lets you check consistency of your generated SQL migrations history.

That’s extremely useful when you have multiple developers working on the project and altering database schema on different branches - read more about migrations for teams.

drizzle-kit check command requires you to specify both dialect and database connection credentials, you can provide them either via drizzle.config.ts config file or via CLI options

With config file

As CLI options

// drizzle.config.ts
import { defineConfig } from "drizzle-kit";

export default defineConfig({
  dialect: "postgresql",
});

npx drizzle-kit check

npx drizzle-kit check --dialect=postgresql

Multiple configuration files in one project

You can have multiple config files in the project, it’s very useful when you have multiple database stages or multiple databases on the same project:

npx drizzle-kit check --config=drizzle-dev.config.ts
npx drizzle-kit check --config=drizzle-prod.config.ts

yarn drizzle-kit check --config=drizzle-dev.config.ts
yarn drizzle-kit check --config=drizzle-prod.config.ts

pnpm drizzle-kit check --config=drizzle-dev.config.ts
pnpm drizzle-kit check --config=drizzle-prod.config.ts

bunx drizzle-kit check --config=drizzle-dev.config.ts
bunx drizzle-kit check --config=drizzle-prod.config.ts

📦 <project root>
 ├ 📂 drizzle
 ├ 📂 src
 ├ 📜 .env
 ├ 📜 drizzle-dev.config.ts
 ├ 📜 drizzle-prod.config.ts
 ├ 📜 package.json
 └ 📜 tsconfig.json

Extended list of configurations

We recommend configuring drizzle-kit through drizzle.config.ts file, yet you can provide all configuration options through CLI if necessary, e.g. in CI/CD pipelines, etc.

npx drizzle-kit check --dialect=postgresql
npx drizzle-kit check --dialect=postgresql --out=./migrations-folder

yarn drizzle-kit check --dialect=postgresql
yarn drizzle-kit check --dialect=postgresql --out=./migrations-folder

pnpm drizzle-kit check --dialect=postgresql
pnpm drizzle-kit check --dialect=postgresql --out=./migrations-folder

bunx drizzle-kit check --dialect=postgresql
bunx drizzle-kit check --dialect=postgresql --out=./migrations-folder