要在MySQL中重命名列名，您需要使用ALTER和CHANGE命令。
让我们首先创建一个表-mysql> create table DemoTable796 (
StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,
Name varchar(100),
StudentAge int
);
让我们检查表的描述-mysql> desc DemoTable796;
这将产生以下输出-+------------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+------------+--------------+------+-----+---------+----------------+
| StudentId | int(11) | NO | PRI | NULL | auto_increment |
| Name | varchar(100) | YES | | NULL | |
| StudentAge | int(11) | YES | | NULL | |
+------------+--------------+------+-----+---------+----------------+
3 rows in set (0.00 sec)
以下是在MySQL中重命名列名的查询-mysql> alter table DemoTable796 change Name StudentName varchar(100);
Records: 0 Duplicates: 0 Warnings: 0
让我们再次检查表的描述-mysql> desc DemoTable796;
这将产生以下输出-+-------------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+----------------+
| StudentId | int(11) | NO | PRI | NULL | auto_increment |
| StudentName | varchar(100) | YES | | NULL | |
| StudentAge | int(11) | YES | | NULL | |
+-------------+--------------+------+-----+---------+----------------+
3 rows in set (0.00 sec)