怎么会呢?mysql> DESC president;
+------------+-------------+------+-----+------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+------------+-------+
| last_name | varchar(15) | | | | |
| first_name | varchar(15) | | | | |
| suffix | varchar(5) | YES | | NULL | |
| city | varchar(20) | | | | |
| state | char(2) | | | | |
| birth | date | | | 0000-00-00 | |
| death | date | YES | | NULL | |
+------------+-------------+------+-----+------------+-------+
7 rows in set (0.06 sec)mysql>
+------------+-------------+------+-----+------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+------------+-------+
| last_name | varchar(15) | | | | |
| first_name | varchar(15) | | | | |
| suffix | varchar(5) | YES | | NULL | |
| city | varchar(20) | | | | |
| state | char(2) | | | | |
| birth | date | | | 0000-00-00 | |
| death | date | YES | | NULL | |
+------------+-------------+------+-----+------------+-------+
7 rows in set (0.06 sec)mysql>
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