Table: supersport_2008
Columns: no
date
round
circuit
pole_position
fastest_lap
race_winner
report

Question: Who won the race at Magny-Cours
SQL: SELECT "race_winner" FROM supersport_2008 WHERE "circuit" = 'Magny-Cours'

Question: Which round was the circuit Assen
SQL: SELECT "round" FROM supersport_2008 WHERE "circuit" = 'Assen'

Question: How many people won in No. 12
SQL: SELECT COUNT("race_winner") FROM supersport_2008 WHERE "no" = 12