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