Where do you store user activity logs?

Question

Python

Hello. A question.
Where do you store logs about user actions in the program (input changes, save views)?
It would be necessary that according to the logs it would be possible to see what the employee did at a certain time.
You need to store MAXI for a month, or even a week.
CSV or DB or something else?
The lair is quite a lot > 1000+ per day.

Answer 1

Log file
SQL
NoSQL
GrayLog and similar