# Get Started with Drizzle and PlanetScale Postgres

<Prerequisites>
  - **dotenv** - package for managing environment variables - [read here](https://www.npmjs.com/package/dotenv)
  - **tsx** - package for running TypeScript files - [read here](https://tsx.is/)
  - **PlanetScale Postgres** - PostgreSQL database platform - [read here](https://planetscale.com/docs/postgres)
  - **node-postgres** - package for querying your PostgreSQL database - [read here](https://node-postgres.com/)
</Prerequisites>

<Callout title='PlanetScale also offers MySQL' type='info'>
Looking for MySQL? Check out our [PlanetScale MySQL guide](/docs/get-started/planetscale-new)
</Callout>

PlanetScale offers both MySQL (Vitess) and PostgreSQL databases. This guide covers connecting to PlanetScale Postgres using the standard `node-postgres` driver.

For detailed instructions on creating a PlanetScale Postgres database and obtaining credentials, see the [PlanetScale Postgres documentation](https://planetscale.com/docs/postgres/tutorials/planetscale-postgres-drizzle).

<FileStructure/>

#### Step 1 - Install **node-postgres** package
<InstallPackages lib='pg' devlib=' @types/pg'/>

#### Step 2 - Setup connection variables

Create a `.env` file in the root of your project and add your database connection variable:

```plaintext copy
DATABASE_URL=postgresql://{username}:{password}@{host}:{port}/postgres?sslmode=verify-full
```

<Callout title='tips'>
You can obtain your connection credentials from the PlanetScale dashboard by navigating to your database, clicking **"Connect"**, and creating a **"Default role"**. See the [PlanetScale connection guide](https://planetscale.com/docs/postgres/tutorials/planetscale-postgres-drizzle#create-credentials-and-connect) for detailed steps.
</Callout>

#### Step 3 - Connect Drizzle ORM to the database

<ConnectPlanetScalePostgres/>

#### Step 4 - Create a table

<CreateTable />

#### Step 5 - Setup Drizzle config file

<SetupConfig dialect='postgresql' env_variable='DATABASE_URL'/>

#### Step 6 - Applying changes to the database

<ApplyChanges />

#### Step 7 - Seed and Query the database

<QueryDatabase dialect='node-postgres' env_variable='DATABASE_URL'/>

#### Step 8 - Run index.ts file

<RunFile/>


Source: https://orm.drizzle.team/docs/get-started/postgresql-existing

import Tab from '@mdx/Tab.astro';
import Tabs from '@mdx/Tabs.astro';
import Npm from "@mdx/Npm.astro";
import Callout from '@mdx/Callout.astro';
import Steps from '@mdx/Steps.astro';
import AnchorCards from '@mdx/AnchorCards.astro';
import Breadcrumbs from '@mdx/Breadcrumbs.astro';
import CodeTabs from "@mdx/CodeTabs.astro";
import Prerequisites from "@mdx/Prerequisites.astro";
import IntrospectPostgreSQL from '@mdx/get-started/postgresql/IntrospectPostgreSQL.mdx';
import FileStructure from '@mdx/get-started/FileStructure.mdx';
import InstallPackages from '@mdx/get-started/InstallPackages.mdx';
import SetupConfig from '@mdx/get-started/SetupConfig.mdx';
import SetupEnv from '@mdx/get-started/SetupEnv.mdx';
import TransferCode from '@mdx/get-started/TransferCode.mdx';
import ApplyChanges from '@mdx/get-started/ApplyChanges.mdx';
import RunFile from '@mdx/get-started/RunFile.mdx';
import ConnectPostgreSQL from '@mdx/get-started/postgresql/ConnectPostgreSQL.mdx'
import QueryDatabase from '@mdx/get-started/QueryDatabase.mdx';
import QueryDatabaseUpdated from '@mdx/get-started/QueryDatabaseUpdated.mdx';
import UpdateSchema from '@mdx/get-started/postgresql/UpdateSchema.mdx';

<Breadcrumbs/>