Append New Data?

This is probably a simple issue, but I haven't been able to determine a solution yet. So I have a report that automatically refreshes daily from an Oracle table on an enterprise gateway. It's basically just a snapshot of inventory balances. I'd like to keep each day's information and add in the current day with each refresh to track trends. I can easily do this in MS Access with an append query, but I'd rather be able to integrate this into the automatic Power BI daily update.