How to write a Presto SQL query to get X result given example Y database where I fill in Y as a csv describing the table with the columns my query needs and fil

How to write a Presto SQL query to get X result given example Y database where I fill in Y as a csv describing the table with the columns my query needs and fill in X as a csv describing the results I'd like to get out. It doesn't always work, but I have an easy, quick way to test it out. When it does work, I've often saved lots of time.