CREATE TABLE "amateur_and_junior_clubs" (
  "club" text,
  "league" text,
  "venue" text,
  "established" real,
  "championships" real
);

Question: What is the Established date of the Ontario Provincial Junior A Hockey League with more than 1 Championship?
SQL: SELECT COUNT("established") FROM "amateur_and_junior_clubs" WHERE "league"='ontario provincial junior a hockey' AND "championships">1;

Question: What Venue has more than 1 Championship and was Established after 1957?
SQL: SELECT "venue" FROM "amateur_and_junior_clubs" WHERE "championships"=1 AND "established">1957;

Question: With less than 1 Championship, what es the Established date of the Niagara Rugby Union League?
SQL: SELECT SUM("established") FROM "amateur_and_junior_clubs" WHERE "championships"<1 AND "league"='niagara rugby union';

Question: What is the Established date of the Brian Timmis Stadium?
SQL: SELECT COUNT("established") FROM "amateur_and_junior_clubs" WHERE "venue"='brian timmis stadium';