How much Micro (10ha) has a Big (>500ha) larger than 63,454, and a Medium (500ha) larger than 440, and a Small (100ha) smaller than 21,047?
CREATE TABLE "irrigation_infrastructure" (
  "department" text,
  "micro_10ha" real,
  "small_100ha" real,
  "medium_500ha" real,
  "big_500ha" real,
  "total" real
);
SELECT COUNT("micro_10ha") FROM "irrigation_infrastructure" WHERE "big_500ha">'63,454' AND "medium_500ha">440 AND "small_100ha"<'21,047';