地质数据仓库设计中的几个问题

SEVERAL ISSUES IN DESIGN OF GEOLOGICAL DATA WAREHOUSE

提出并讨论了地质数据仓库系统设计中的几个问题：操作数据存储作为数据库和数据仓库间的数据接口，借用地理信息系统来存储和表示空间数据，级联式更新、主题间复杂关系的表达，以及专用的数据抽取模型的设计一个完整的地质数据仓库系统可以分为3层：存储层、分析层、表达层在存储层的设计中，应考虑到公用库的设计.

Several issues in the design of the geological data warehouse system are proposed and dealt with in this paper: the operation data storage as the interface between database and data warehouse, the geqraphic information system berrowed to store and express spatial data, the cascade updating, the expression of the complex relationship between subjects, and the special data extraction model. A complete geological data warehouse consists of three layers: storage layer, analysis layer and expression layer. In addition, the design of the cornmo warehouse should be included in the design of the storage layer.