資料庫查詢錯誤，條件是 select main.chinesef, COALESCE( ttvhl2021.chap) as chap,COALESCE( ttvhl2021.sec) as sec,COALESCE( ttvhl2021.id) as id,main.engs,ttvhl2021.txt from ttvhl2021,main where main.engs=COALESCE( ttvhl2021.engs) and main.chineses='' and COALESCE( ttvhl2021.chap)= order by ttvhl2021.id !