Name the least merconorte for interliga of 2 and matches more than 260 with superliga more than 7
CREATE TABLE "most_appearances" (
  "player" text,
  "period" text,
  "league" real,
  "concacaf" real,
  "libertadores" real,
  "merconorte" real,
  "inter_liga" real,
  "superliga" real,
  "matches" real
);
SELECT MIN("merconorte") FROM "most_appearances" WHERE "inter_liga"=2 AND "matches">260 AND "superliga">7;