In the paper storage models based on relation database, object-oriented database, index files, compressed files are discussed in detail.
文中对基于关系数据库、面向对象数据库、索引文件、压缩文件的存储模型进行了详细地论述。
But it is very difficult to use common data-management technique based on relation database to the geological data because of their distinct spatial features and complex configurations.
然而，地学数据显著的空间特征和复杂的结构属性又不能简单运用常规的数据库管理系统进行表述、处理。
On the basis of theoretic research, a collision solution support tool is developed based on relation database, and the tool can help solving collision in the distributed cooperation design course.
根据理论研究成果，基于关系数据库，开发了冲突解决支持工具，该工具支持分布式协同设计过程的冲突解决。
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