What is the highest Attendance, when Date is "Oct. 26"?
CREATE TABLE "schedule" (
  "game" real,
  "date" text,
  "opponent" text,
  "result" text,
  "raiders_points" real,
  "opponents" real,
  "raiders_first_downs" real,
  "record" text,
  "attendance" real
);
SELECT MAX("attendance") FROM "schedule" WHERE "date"='oct. 26';