By default, if `NC_DB` is not specified upon [installation](/getting-started/self-hosted/installation), then SQLite will be used to store metadata. We suggest users to separate the metadata and user data in different databases as pictured in our [architecture](/engineering/architecture).
Note: Deleting your docker container without setting `NC_DB` or mounting to a persistent volume for a default SQLite database will result in losing your data. See examples below.
### Find & Remove NocoDB Docker Image
```bash
# find NocoDB image
docker images
# delete NocoDB image
docker rmi <YOUR_IMAGE_ID>
```
### Pull the latest NocoDB image with same environment variables
Updating nocodb docker container is similar to updating [any other docker containers](https://www.whitesourcesoftware.com/free-developer-tools/blog/update-docker-images/).
### Example: Docker Upgrade
![Screen Shot 2021-09-16 at 09 23 07](https://user-images.githubusercontent.com/5435402/133578984-53c6b96b-3e8b-4a96-b6c2-36f3c09ffdde.png)
## Node
Updating docker container is similar to updating a npm package.
From your root folder
#### Uninstall NocoDB package
```bash
npm uninstall nocodb
```
#### Install NocoDB package
```bash
npm install --save nocodb
```
## Homebrew
Run following commands to upgrade Homebrew Nocodb version.