數據庫SQL語法，什麼是錯的這個SQL代碼

Question

SELECT customer.first_name, 
     customer.last_name, 
     orders.order_number 
FROM customer 
    FULL OUTER JOIN orders ON customer.id = orders.customerid 
ORDER BY customer.last_name; 

Answer 1

SELECT customer.first_name，customer.last_name，orders.order_number從客戶 全外連接由customer.last_name customer.id = orders.customerid訂購訂單;

在這個查詢中沒有錯只是檢查你的列名