MySQL参考手册没有提供有关如何执行此操作的明确示例.
我有一个ENUM类型的国家/地区列,我需要添加更多国家/地区.实现此目的的MySQL语法是什么？
这是我的尝试:
ALTER TABLE carmake CHANGE country country ENUM('Sweden','Malaysia');
我得到的错误是: ERROR 1265 (01000): Data truncated for column 'country' at row 1.
该country列是上述语句中的ENUM类型列.
SHOW CREATE TABLE OUTPUT:
mysql> SHOW CREATE TABLE carmake;
+---------+---------------------------------------------------------------------+
| Table | Create Table
+---------+---------------------------------------------------------------------+
| carmake | CREATE TABLE `carmake` (
`carmake_id` tinyint(4) NOT NULL AUTO_INCREMENT,
`name` tinytext,
`country` enum('Japan','USA','England','Australia','Germany','France','Italy','Spain','Czech Republic','China','South Korea','India') DEFAULT NULL,
PRIMARY KEY (`carmake_id`),
KEY `name` (`name`(3))
) ENGINE=InnoDB AUTO_INCREMENT=49 DEFAULT CHARSET=latin1 |
+---------+---------------------------------------------------------------------+
1 row in set (0.00 sec) …