資料庫查詢錯誤，條件是 select main.chinesef, COALESCE( tcv95.chap,ams.chap) as chap,COALESCE( tcv95.sec,ams.sec) as sec,COALESCE( tcv95.id,ams.id) as id,main.engs,tcv95.txt,ams.txt from tcv95 full join ams on (ams.engs=tcv95.engs and ams.chap= tcv95.chap and  ams.sec=tcv95.sec) ,main where main.engs=COALESCE( tcv95.engs,ams.engs) and main.chineses='' and COALESCE( tcv95.chap,ams.chap)= order by tcv95.id !