Tags help you locate resources within your tenancy. You can add and view a connection's tags from the Database Connections page and from the Database connection details page.

On the Database connection details page, from the Connection's Actions (three dots) menu, select Add Tags or View Tags.

On the Database connection details page, from the Actions menu, you can select Manage tags, or click the Tags tab to view and edit tags.

See Managing Tags and Tag Namespaces to learn more about tagging.