| Name | Description | Type | Additional information |
|---|---|---|---|
| mid | integer |
None. |
|
| stuid | integer |
None. |
|
| studentName | string |
None. |
|
| mdate | date |
None. |
|
| msgtype | string |
None. |
|
| content | string |
None. |
|
| isviewed | boolean |
None. |
|
| isdownloaded | boolean |
None. |