Can you delete all data of a country from Nominatim local database?

I was able to succesfully install Nominatim locally and now want to get all the data for addresses and cities using it. The problem is i don't have have enough space to hold a large quantity of data for multiple countries. So i want to import a data, get all the information I need and then delete it and import new data. I know you can update the database with new data using update.php.

So is there a safe clean way to delete data of a country?