CREATE TABLE table_934 ("Number" FLOAT, "Astronaut" TEXT, "Agency" TEXT, "Total EVAs" FLOAT, "Total Time Hours:Minutes" TEXT)

What's Yurchikhin Fyodor Yurchikhin's number?
SELECT "Number" FROM table_934 WHERE "Astronaut" = 'Yurchikhin Fyodor Yurchikhin'
SELECT "Number" FROM "table_934" WHERE "Astronaut" = 'Yurchikhin Fyodor Yurchikhin'