Funso (Chichewa): Kodi ndi maboma angati omwe analemba mitengo ya mbewu zoposa imodzi?
Question (English): How many districts recorded prices for more than one commodity?
Table: commodity_prices (difficulty: hard)
SQL: SELECT COUNT(*) FROM (SELECT district FROM commodity_prices GROUP BY district HAVING COUNT(DISTINCT commodity) > 1);
Result: [(27,)]