# Data Sources

> Part of the NocoDB documentation (Product docs > Integrations). Index of all pages: https://nocodb.com/llms.txt. Any docs page is available as Markdown by adding `.md` to its URL.

URL: https://nocodb.com/docs/product/integrations/data-sources
Last updated: 2026-09-25

NocoDB Data-Source sync, access control & re-config

## Overview

NocoDB allows you to connect to external data sources and get a unified spreadsheet view of your data. Activities related to external data sources can be managed from **Base Settings** → **Manage** → **External Database**.

**External Database** settings include following functionalities

1. Connect / manage external data source
2. UI Access Control
3. Relations (ERD View)
4. Meta Sync

## Accessing `Data Sources`

1. Open the base and go to **Base Settings** → **Manage** → **External Database**.

<img alt="The External Database pane, with the base's own source pinned as Default" src={__img0} placeholder="blur" />

Learn more about **working with Data sources** in the following sections:

* [Connect to a Data source](/docs/product/integrations/data-sources/connect-to-data-source)
* [Sync changes externally made to data source](/docs/product/integrations/data-sources/sync-with-data-source)
* [Edit external database configuration parameters](/docs/product/integrations/data-sources/actions-on-data-sources#edit-data-source-parameters)
* [Remove Data source](/docs/product/integrations/data-sources/actions-on-data-sources#remove-data-source)
* [Hide Data source](/docs/product/integrations/data-sources/actions-on-data-sources#data-source-visibility)
* [Relations within a data source](/docs/product/integrations/data-sources/actions-on-data-sources#relations)
* [View visibility](/docs/product/integrations/data-sources/actions-on-data-sources#view-visibility)

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## Related pages

- [Connect to a Data Source](https://nocodb.com/docs/product/integrations/data-sources/connect-to-data-source.md): Learn how to connect to an external data-source (PG/MySQL) in NocoDB.
- [Sync with Data Source](https://nocodb.com/docs/product/integrations/data-sources/sync-with-data-source.md): Learn how to sync changes done in external data source with NocoDB.
- [Actions on Data Sources](https://nocodb.com/docs/product/integrations/data-sources/actions-on-data-sources.md): Learn more about actions that can be performed on data sources in NocoDB.
- [Updating Secrets](https://nocodb.com/docs/product/integrations/data-sources/updating-secret.md): Learn how to update secrets in NocoDB using the nc-secret-mgr package.