 |
external schema
| description language
| external schema | |
| IT | 外 模式 |
| multimed. | 外模式 |
| description language | |
| IT | 描述语言 |
| |||
| 外部模式 | |||
| 外模式 | |||
| 外部模式 | |||
|
external schema : 3 phrases in 1 subject |
| Information technology | 3 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips