Table: f1_1989_race_results
Columns: rd
grand_prix
date
location
pole_position
fastest_lap
winning_driver
constructor
report

Question: Who had the pole position at the German Grand Prix?
SQL: SELECT "pole_position" FROM f1_1989_race_results WHERE "grand_prix" = 'German Grand Prix'

Question: Which rd. occurred on 22 October?
SQL: SELECT MIN("rd") FROM f1_1989_race_results WHERE "date" = '22 October'

Question: Who was the winning driver on 13 August?
SQL: SELECT "winning_driver" FROM f1_1989_race_results WHERE "date" = '13 August'

Question: What was the fastest lap at the Mexican Grand Prix?
SQL: SELECT "fastest_lap" FROM f1_1989_race_results WHERE "grand_prix" = 'Mexican Grand Prix'

Question: Which rd. took place at Hockenheimring?
SQL: SELECT MIN("rd") FROM f1_1989_race_results WHERE "location" = 'Hockenheimring'

Question: How many drivers had the fastest lap at Silverstone?
SQL: SELECT COUNT("fastest_lap") FROM f1_1989_race_results WHERE "location" = 'Silverstone'