视图的修改可通过如下两种命令实现
- CREATE OR REPLACE VIEW 视图名...
- ALTER VIEW 视图名...
方式一、
mysql> CREATE OR REPLACE VIEW v1
-> AS
-> SELECT * FROM department;
Query OK, 0 rows affected (0.02 sec)
mysql> SELECT * FROM v1;
+----+-----------+
| id | depName |
+----+-----------+
| 1 | 开发部 |
| 3 | 教学部 |
| 2 | 视频部 |
| 4 | 运营部 |
+----+-----------+
方式二、
mysql> ALTER VIEW v2
-> AS
-> SELECT * FROM provinces;
Query OK, 0 rows affected (0.02 sec)
mysql> SELECT * FROM v2;
+----+--------+
| id | pName |
+----+--------+
| 4 | 上海 |
| 3 | 北京 |
| 1 | 山东 |
| 2 | 河北 |
| 5 | 美国 |
+----+--------+