操作数应该包含1列（s）？它可以但仍然错误。这是一个错误？

Question

我有一个严重的奇怪问题。我敢肯定我没有做错任何事在这行代码：

INSERT INTO 
oc_address  
    (`cust_id`, `firstname`, `lastname`, `address_1`, `city`, `postcode`, `country_id`) 
SELECT   
    (`cust_id`, `first_name`, `last_name`, `address`, `city`, `postalcode`, `country`) 
FROM old_customer; 

尽管如此，我得到的消息“＃1241 - 操作数应包含1列（S）”

是否anybony看到的东西我不你看吗？我认为这可能是由地址_1处的_1造成的。但为什么会是... 我希望有另一种解释

Answer 1

去除SELECT ststement列左右()，

INSERT INTO oc_address (cust_id, firstname, lastname, address_1, city, postcode, country_id) 
SELECT cust_id, first_name, last_name, address, city, postalcode, country 
FROM old_customer; 

• SQLFiddle Demo (two statements included)

Answer 2

删除符号为您的列名称和()在您的SELECT。

INSERT INTO 
    oc_address  
    (cust_id, firstname, lastname, address_1, city, postcode,country_id) 
    SELECT   
    cust_id, first_name, last_name, address, city, postalcode, country 
    FROM old_customer;