CREATE TABLE table_204_455 (id DECIMAL, "rd." DECIMAL, "grand prix" TEXT, "date" TEXT, "location" TEXT, "pole position" TEXT, "fastest lap" TEXT, "winning driver" TEXT, "constructor" TEXT, "report" TEXT)

who had the fastest lap at the german grand prix ?
SELECT "fastest lap" FROM table_204_455 WHERE "grand prix" = 'german grand prix'
SELECT "fastest lap" FROM "table_204_455" WHERE "grand prix" = 'german grand prix'