CREATE TABLE table_50837 ("Year" CLOB, "Team" CLOB, "Attempts" CLOB, "Completions" CLOB, "Completion %" CLOB, "Yards" CLOB)

What was the number of attempts for Vanderberg on Iowa when the recorded yards were 2,249?
SELECT "Attempts" FROM table_50837 WHERE "Team" = 'iowa' AND "Yards" = '2,249'
SELECT "Attempts" FROM "table_50837" WHERE "Team" = 'iowa' AND "Yards" = '2,249'