How many NHL teams have a pick number of 128?
CREATE TABLE "round_seven" (
  "pick_num" real,
  "player" text,
  "position" text,
  "nationality" text,
  "nhl_team" text,
  "college_junior_club_team" text
);
SELECT COUNT("nhl_team") FROM "round_seven" WHERE "pick_num"=128;