CREATE TABLE table_204_317 (id DECIMAL, "metropolitan area" TEXT, "country" TEXT, "rank" DECIMAL, "forstall\ 2003 est." DECIMAL, "official population" DECIMAL, "year" DECIMAL)

which areas had a population of more than 10,000,000 but less than 20,000,000 ?
SELECT "metropolitan area" FROM table_204_317 WHERE "official population" > 10000000 AND "official population" < 20000000
SELECT "metropolitan area" FROM "table_204_317" WHERE "official population" < 20000000 AND "official population" > 10000000