图形数据模型 meaning in Chinese
graphical data models
Examples
- Compared with other existing xml updatelanguages , it has the following features . first , it is the onlyxml data manipulation language based on a higher data model . second , this language can express complex update requests atmultiple levels in a hierarchy in a simple and flat way
Xml - gl采用一个xml图形数据模型xml gdm来表示xml dtd和实际的文档， xml元素被表示为矩形而属性和原子值被表示为圆圈。