mysql> show tables; --创建表成功
+-------------------+
| Tables_in_test123 |
+-------------------+
| t |
+-------------------+
1 row in set (0.00 sec)
mysql> desc t;
+-------+-----------+------+-----+-------------------+-----------------------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-----------+------+-----+-------------------+-----------------------------+
| a | int(11) | YES | | NULL | |
| b | char(10) | YES | | NULL | |
| c | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
+-------+-----------+------+-----+-------------------+-----------------------------+
3 rows in set (0.01 sec)