Current scenario

At this moment, there is no way to interact with the Confluence Databases(Beta) feature while using Confluence Automation rules.

Suggested solution

Please add a "Databases" components to Confluence Automation, like Triggers, Actions

Why is this important?

As the Confluence Databases feature is going to be released soon, it is likely that more and more customer will look for ways to automate their Databases, and having "Databases" components(triggers, actions) should make this easier.