CREATE TABLE "u_s_nielsen_ratings" (
  "num" real,
  "episode" text,
  "rating" text,
  "share" real,
  "rating_share_18_49" text,
  "viewers_millions" text,
  "rank_timeslot" text,
  "rank_night" text,
  "rank_week" text
);

Question: what is the rank for the rating 4.4?
SQL: SELECT "rank_night" FROM "u_s_nielsen_ratings" WHERE "rating"='4.4';

Question: what is the rating where the rank is 48?
SQL: SELECT "rating_share_18_49" FROM "u_s_nielsen_ratings" WHERE "rank_week"='48';

Question: what is the total rank where the rank is 58?
SQL: SELECT COUNT("rank_timeslot") FROM "u_s_nielsen_ratings" WHERE "rank_week"='58';

Question: what rank has viewers at 6.45?
SQL: SELECT "rank_week" FROM "u_s_nielsen_ratings" WHERE "viewers_millions"='6.45';

Question: what is the total number of rank where viewers is 9.38?
SQL: SELECT COUNT("rank_timeslot") FROM "u_s_nielsen_ratings" WHERE "viewers_millions"='9.38';