import Npm from '@mdx/Npm.astro'; import Npx from '@mdx/Npx.astro'; import Callout from '@mdx/Callout.astro'; import Prerequisites from "@mdx/Prerequisites.astro"; import CodeTabs from "@mdx/CodeTabs.astro"; import WhatsNextPostgres from "@mdx/WhatsNextPostgres.astro"; import Breadcrumbs from '@mdx/Breadcrumbs.astro'; 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 TransferCode from '@mdx/get-started/TransferCode.mdx'; import QueryDatabase from '@mdx/get-started/QueryDatabase.mdx'; import QueryDatabaseUpdated from '@mdx/get-started/QueryDatabaseUpdated.mdx'; import RunFile from '@mdx/get-started/RunFile.mdx'; import ApplyChanges from '@mdx/get-started/ApplyChanges.mdx'; import SetupEnv from '@mdx/get-started/SetupEnv.mdx'; import IntrospectSqlite from '@mdx/get-started/sqlite/IntrospectSqlite.mdx'; import ConnectBun from '@mdx/get-started/sqlite/ConnectBun.mdx'; import UpdateSchema from '@mdx/get-started/sqlite/UpdateSchema.mdx';

Get Started with Drizzle and Bun:SQLite in existing project

<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/) - **bun** - javaScript all-in-one toolkit - [read here](https://bun.sh/) - **bun:sqlite** - native implementation of a high-performance SQLite3 driver - [read here](https://bun.sh/docs/api/sqlite) </Prerequisites> <FileStructure />

Step 1 - Install required packages

<Npm> drizzle-orm dotenv -D drizzle-kit tsx @types/bun </Npm>

Step 2 - Setup connection variables

<SetupEnv env_variable='DB_FILE_NAME' /> <Callout type='info' title='important'> For example, if you have an SQLite database file in the root of your project, you can use this example: ```plaintext copy DB_FILE_NAME=mydb.sqlite ``` </Callout>

Step 3 - Setup Drizzle config file

Step 4 - Introspect your database

Step 5 - Transfer code to your actual schema file

Step 6 - Connect Drizzle ORM to the database

Step 7 - Query the database

Step 8 - Run index.ts file

To run a script with bun, use the following command:

bash

bun src/index.ts

Step 9 - Update your table schema (optional)

Step 9 - Applying changes to the database (optional)

Step 10 - Query the database with a new field (optional)