CREATE TABLE table_203_152 (id DECIMAL, "province" TEXT, "capital" TEXT, "area  ( km2 ) " DECIMAL, "population" DECIMAL, "density" DECIMAL)

which province has the most area ?
SELECT "province" FROM table_203_152 ORDER BY "area (km2)" DESC LIMIT 1
SELECT "province" FROM "table_203_152" ORDER BY "area (km2)" DESC NULLS LAST LIMIT 1