By default, if `NC_DB` is not specified upon [installation](/0.109.7/getting-started/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.
Updating nocodb docker container is similar to updating [any other docker containers](https://www.whitesourcesoftware.com/free-developer-tools/blog/update-docker-images/).