資料庫查詢錯誤，條件是 select main.chinesef, COALESCE( tghg2.chap,ttvhl2021.chap) as chap,COALESCE( tghg2.sec,ttvhl2021.sec) as sec,COALESCE( tghg2.id,ttvhl2021.id) as id,main.engs,tghg2.txt,ttvhl2021.txt from tghg2 full join ttvhl2021 on (ttvhl2021.engs=tghg2.engs and ttvhl2021.chap= tghg2.chap and  ttvhl2021.sec=tghg2.sec) ,main where main.engs=COALESCE( tghg2.engs,ttvhl2021.engs) and main.chineses='' and COALESCE( tghg2.chap,ttvhl2021.chap)= order by tghg2.id !