併發症，同時使用除MySQL的

Question

我想選擇客戶ID未在1977年一年下令：

SELECT CustomerID 
FROM orders 
EXCEPT 
SELECT CustomerID 
FROM orders 
WHERE YEAR(OrderDate)=1977); 

表「訂單」既包含客戶ID和訂購日期

的錯誤是：

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(SELECT CustomerID FROM orders WHERE YEAR(OrderDate)=1977)' at line 1 

Answer 1

試試這個::

SELECT CustomerID FROM orders WHERE YEAR(OrderDate)<>1977;