資料庫查詢錯誤,條件是 select main.chinesef, COALESCE( unv.chap) as chap,COALESCE( unv.sec) as sec,COALESCE( unv.id) as id,main.engs,unv.txt,ispar(main.engs,unv.chap,unv.sec),main.id from unv,main where main.engs=COALESCE( unv.engs) and main.chineses='約' and COALESCE( unv.chap)=6 and COALESCE( unv.sec)=27f. order by unv.id !