Adding data from Table2 to Table1 upon refresh

Hello,

I'm working on re-building a report that pulls data from ADO via an ODATA feed every night.  the goal of this is to take snapshots of the states of various features every day so that we can use the data for historical purposes (AKA see what got done on time, vs. what just got done).  The person who set up the system before me used the WorkItemsSnapshot feed from ADO, which we're encountering throttling issues on, and the documentation says we shouldn't be using in this way.

My approach I want to take is to create a table that pulls in the data from the ODATA feed every night at a scheduled refresh, and then appends that data into a table that has all the previous historical data in it. Is there a simple way to do this?

To put it another way; Table 2's contents change every night, and I would like to add a copy of Table 2's contents to Table 1 every night, that way I will have a historical record of when certain changes in the data happened.

I'm not against using Python to do this, as I've got skills in that area.  I've looked into incrimental refresh, but from what I've seen it doesn't look like I can use that to be able to look back at historical data to compare easily, but I could be wrong.  Lastly, I'm hoping whatever solution can be found is something that will work with automated refresh from the web version.