---
title: 'Actions on Data sources'
description: 'Learn more about actions that can be performed on data sources in NocoDB.'
tags: ['Data sources', 'UI ACL', 'Audit', 'Relations', 'Edit', 'Remove', 'Visibility']
keywords: ['NocoDB data source', 'UI ACL', 'Audit logs', 'Relations', 'Edit', 'Unlink', 'Visibility']
---

## Edit Data Source parameters
- Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage
- Click on the data source that you wish to edit
- Re-configure data source parameters as required. The following parameters can be edited:
    1. Data source name
    2. Database & Schema
    3. Data source access permissions
- Click on `Submit` button to save the changes

:::note
To change database connection configuration parameters (like host, port, and such) use [Edit connection](/integrations/actions-on-connection#edit) option. Edit connection option is available only for the users with Workspace Creator+ permissions.
:::

![edit-data-source](/img/v2/data-source/data-source-edit.png)

## Remove data source

Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage
1. Click on Actions button (three dots) against the data source that you wish to remove
2. Select `Remove` option from the dropdown

![datasource unlink](/img/v2/data-source/data-source-remove.png)  
  
![datasource unlink](/img/v2/data-source/data-source-remove-2.png)

:::note
Removing a data source will not delete the external data source. It will only remove the data source from the current base.
:::


## Data source visibility

- Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage
- Toggle radio button listed under `Visibility` column for the data source that you wish to hide/un-hide

![datasource visibility](/img/v2/data-source/data-source-visibility.png)


## UI Access Control

:::info
UI Access Control is available only in Open-Source version of NocoDB.
:::

Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage, select the data source that you wish to configure UI ACL for and follow the steps below:
1. Select `UI ACL` tab
2. You can see the list of views & tables available in the data source as rows & roles available as columns. Toggle checkboxes to enable/disable access to tables for specific roles.
3. Click on `Save` button to save the changes

![ui acl](/img/v2/data-source/data-source-uiacl.png)


## Audit logs

- Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage
- Click on `Default` datasource & then 
- Access `Audit` tab to view the audit logs.

![audit](/img/v2/data-source/data-source-audit.png)

:::info
Audit logs are not available for external data source connections.
:::

## Relations
- Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings homepage
- Select the data source that you wish to access ERD (Relations view) for
- Click on `ERD View` tab

![relations](/img/v2/data-source/data-source-erd.png)

[//]: # (### Junction table names within Relations)

[//]: # ()
[//]: # (- Enable `Show M2M Tables` within `Project Settings` menu)

[//]: # (- Double-click on `Show Fields` to see additional checkboxes get enabled.)

[//]: # (    - Enabling which you should be able to see junction tables and their table names.)

[//]: # ()
[//]: # (![image](/img/v2/data-source/junction-table.png))