MySQL的/ PHP的SELECT ORDER BY

Question

我有一個選擇，如：

SELECT * FROM xxx WHERE id = 5 ORDER BY id DESC 

但我需要訂購我選擇的 「名稱」 列，它是到另一個表... 我該怎麼辦？

Answer 1

SELECT xxx.*, yyy.name 
FROM xxx 
JOIN yyy 
ON  yyy.x_id = xxx.id 
WHERE xxx.id = 5 
ORDER BY 
     yyy.name DESC 

Answer 2

我相信這是正確的方向前進：

SELECT * from xxx LEFT JOIN yyy ON yyy.name = xxx.whateverkey WHERE id = 5 ORDER BY yyy.name DESC