Database design - how do I track information over time and query a table for latest data?

Question

We are trying to track our applications in our department and our unit test usage so I have created a database to keep track of this. I have an Applications

Answer 1

You can use auditing. This will create the logs you want.

To separate between different applications and unit tests you can create separate users for each application. It will simplify querying who tested what.