human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Round, Grand Prix, Pole Position, Fastest Lap, Winning Driver, Winning Constructor, Report
###Question: Which round had Michael Schumacher in the pole position, David Coulthard with the fastest lap, and McLaren - Mercedes as the winning constructor?
gpt
SELECT COUNT Round FROM table WHERE Pole Position = Michael Schumacher AND Fastest Lap = David Coulthard AND Winning Constructor = McLaren - Mercedes