Table: gymnastics_results
Columns: year
competition
location
event
final_rank
final_score
qualifying_rank
qualifying_score

Question: what is the year where the qualifying score was 15.150?
SQL: SELECT "year" FROM gymnastics_results WHERE "qualifying_score" = '15.150'

Question: how many times was the qualifying score 60.750?
SQL: SELECT COUNT("event") FROM gymnastics_results WHERE "qualifying_score" = '60.750'

Question: how many times is the qualifying score 61.400?
SQL: SELECT COUNT("year") FROM gymnastics_results WHERE "qualifying_score" = '61.400'

Question: what is the final-rank for the uneven bars and the competition is u.s. championships?
SQL: SELECT "final_rank" FROM gymnastics_results WHERE "event" = 'Uneven Bars' AND "competition" = 'U.S. Championships'

Question: what is the lowest qualifying rank?
SQL: SELECT MIN("qualifying_rank") FROM gymnastics_results

Question: what is the highest qualifying rank where the competition is olympic trials, the final-rank is 4 and qualifying score is 15.100?
SQL: SELECT MAX("qualifying_rank") FROM gymnastics_results WHERE "competition" = 'Olympic Trials' AND "final_rank" = '4' AND "qualifying_score" = '15.100'