Hi! May i ask how many total games were played?
select count ( * ) from game
Okay. How many games were without injuries?
select count ( * ) from game where id not in ( select game_id from injury_accident )
How many were with injuries?
select count ( * ) from game where id in ( select game_id from injury_accident )
Okay that's fine. Do you know the stadium ID for games without injuries?
select stadium_id from game where id not in ( select game_id from injury_accident )