Table: spacewalk_records
Columns: number
astronaut
agency
total_evas
total_time_hours_minutes

Question: What's Yurchikhin Fyodor Yurchikhin's number? 
SQL: SELECT "number" FROM spacewalk_records WHERE "astronaut" = 'Yurchikhin Fyodor Yurchikhin'

Question: How long was the walk numbered at 17?
SQL: SELECT "total_time_hours_minutes" FROM spacewalk_records WHERE "number" = 17

Question: How many agencies did Budarin Nikolai Budarin working for? 
SQL: SELECT COUNT("agency") FROM spacewalk_records WHERE "astronaut" = 'Budarin Nikolai Budarin'

Question: What is the total EVAs of the walk that lasted 45:34?
SQL: SELECT MAX("total_evas") FROM spacewalk_records WHERE "total_time_hours_minutes" = '45:34'

Question: How many different total EVAs are there for the walk that lasted 45:34?
SQL: SELECT COUNT("total_evas") FROM spacewalk_records WHERE "total_time_hours_minutes" = '45:34'

Question: What agency does Anderson Clayton Anderson work for? 
SQL: SELECT "agency" FROM spacewalk_records WHERE "astronaut" = 'Anderson Clayton Anderson'