What is the lowest order with a Minister that is joe hockey?
CREATE TABLE "list_of_ministers_for_small_business" (
  "order" real,
  "minister" text,
  "party_affiliation" text,
  "prime_minister" text,
  "term_start" text,
  "term_end" text,
  "term_in_office" text
);
SELECT MIN("order") FROM "list_of_ministers_for_small_business" WHERE "minister"='joe hockey';