mysql - DELETEJOINのトラブル

Question

DELETE FROM Books INNER JOIN (Classes, Class_Books) ON (Books.ISBN = Class_Books.ISBN AND Class_Books.Class_ID = Classes.Class_ID AND Classes.Term_ID = 63) WHERE Year = '""'

エラーが発生します：＃1064-SQL構文にエラーがあります。

DELETEをSELECTに置き換えると、正常に機能しますが

Answer 1

SQLでは、あなたは言います

DELETE FROM

いいえ

DELETE * FROM

でも

SELECT * FROM

Answer 2

DELETE FROM Books 
WHERE ISBN IN (Select Class_Books.ISBN from Class_Books, Classes
               WHERE Class_Books.Class_ID = Classes.Class_ID 
                 AND Classes.Term_ID = 63
              )
AND Year = '""'

Answer 3

次のことを試してください。Classes.Term_ID=63の本のレコードが削除されます。

DELETE b FROM Books b
    INNER JOIN Class_Books cb ON b.ISBN = cb.ISBN
    INNER JOIN Classes c ON cb.Class_ID = c.Class_ID  
WHERE Year = '""' 
  AND c.Term_ID = 63