Subtract One Dataset From Another

I've got 2 databases. The second grabs data from the first and files it when people do their job. When people don't do their job, that data will only live in the first database instead of both. I need to write something that will subtract the dataset from the second database from the first database and show what's left. I'm not sure how to do this in the question editor.

Hi @paintbb84
You cannot make queries across database connections. - upvote by clicking :+1: on the first post
You'll have to make the calculation on the database.