import CodeTab from "@mdx/CodeTab.astro"; import CodeTabs from "@mdx/CodeTabs.astro"; import Section from "@mdx/Section.astro"; import Tab from "@mdx/Tab.astro"; import Tabs from "@mdx/Tabs.astro"; import Callout from "@mdx/Callout.astro"; import Prerequisites from "@mdx/Prerequisites.astro"; import Npm from "@mdx/Npm.astro"; import Npx from "@mdx/Npx.astro";

`drizzle-kit check`

<Prerequisites> - Get started with Drizzle and `drizzle-kit` - [read here](/docs/get-started) - Drizzle schema fundamentals - [read here](/docs/sql-schema-declaration) - Database connection basics - [read here](/docs/connect-overview) - Drizzle migrations fundamentals - [read here](/docs/migrations) - Drizzle Kit [overview](/docs/kit-overview) and [config file](/docs/drizzle-config-file) - `drizzle-kit generate` command - [read here](/docs/drizzle-kit-generate) </Prerequisites>

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.

<hr/>

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

<Section> ```ts {5,8} // drizzle.config.ts import { defineConfig } from "drizzle-kit";

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

```shell
npx drizzle-kit check

</Section> ```shell npx drizzle-kit check --dialect=postgresql ``` </CodeTabs>

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 drizzle-kit check --config=drizzle-prod.config.ts </Npx>

plaintext

📦 <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. <rem025/>


`dialect`	`required`	Database dialect you are using. Can be `postgresql`,`mysql` or `sqlite`
`out`		Migrations folder, default=`./drizzle`
`config`		Configuration file path, default=`drizzle.config.ts`

<Npx> drizzle-kit check --dialect=postgresql drizzle-kit check --dialect=postgresql --out=./migrations-folder </Npx>