nocodb/packages/noco-docs/docs/100.data-sources/040.actions-on-data-sources.md

title, description, tags, keywords

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

Edit external database configuration parameters

• Access Data Sources tab in the Base Settings
• Click on Connection Details tab
• Re-configure database credentials as required

:::info Please make sure database configuration parameters are valid. Any incorrect parameters could lead to schema loss! :::

Remove data source

• Access Data Sources tab in the Base Settings
• Click on Delete icon listed under Actions column for the data source that you wish to remove

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

Data source visibility

• Access Data Sources tab in the Base Settings
• Toggle radio button listed under Visibility column for the data source that you wish to hide/un-hide

UI Access Control

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

Access Data Sources tab in the Base Settings to manage UI access control for the data source.

1. Click on UI ACL button listed under Actions column for the data source that you wish to manage UI access control for
2. On the UI ACL modal, you can see the list of 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

Audit logs

Access Data Sources tab in the Base Settings to access Audit logs for the data source.

• Click on Default datasource & then
• Access Audit tab to view the audit logs.

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

Relations

Access Data Sources tab in the Base Settings to access Relations view for the data source.

• Select the data source that you wish to access ERD (Relations view) for
• Click on ERD tab

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.