Table: football_match_8
Columns: date
location
score
result
competition

Question: What was the score when the result was win, in Helsinki, competition was friendly?
SQL: SELECT "score" FROM football_match_8 WHERE "result" = 'win' AND "location" = 'helsinki' AND "competition" = 'friendly'

Question: What competition has a Score of 7–0?
SQL: SELECT "competition" FROM football_match_8 WHERE "score" = '7–0'

Question: What date has a result of win, in a friendly competition in Porto?
SQL: SELECT "date" FROM football_match_8 WHERE "result" = 'win' AND "competition" = 'friendly' AND "location" = 'porto'