CREATE TABLE table_39894 ("Order" FLOAT, "Minister" TEXT, "Party affiliation" TEXT, "Prime Minister" TEXT, "Term start" TEXT, "Term end" TEXT, "Term in office" TEXT)

What is the lowest order with a Minister that is joe hockey?
SELECT MIN("Order") FROM table_39894 WHERE "Minister" = 'joe hockey'
SELECT MIN("Order") FROM "table_39894" WHERE "Minister" = 'joe hockey'