CREATE TABLE "final_table" (
  "position" real,
  "club" text,
  "played" real,
  "points" text,
  "wins" real,
  "draws" real,
  "losses" real,
  "goals_for" real,
  "goals_against" real,
  "goal_difference" real
);

Question: What is the lowest goal difference for the club ud alzira, with a played larger than 38?
SQL: SELECT MIN("goal_difference") FROM "final_table" WHERE "club"='ud alzira' AND "played">38;

Question: What is the goal difference sum that has goals against smaller than 33, draws larger than 13?
SQL: SELECT SUM("goal_difference") FROM "final_table" WHERE "goals_against"<33 AND "draws">13;