基于共享数据库的多数据源集成

鉴于企业和单位规模不断扩大、业务需求的不断更新，为能够进行更好的管理和决策分析．对于多数据源的集成需求越来越迫切。文中介绍了共享数据库模型，指出了它与数据仓库以及传统操作型数据库之间的差异。还讨论了基于共享数据库的多数据源集成问题，阐述了在数据源集成过程中解决模式冲突、处理异常数据的方法。对共享数据库中数据更新的方法和时机做了简要论述。

Data Integration of Multiple Data Sources Based on Shared Database

With the increment of the business scale and the alteration of the business demand, there is an urgent need for the data integration of multiple data sources in order to make better management, analysis and decision. In this paper, the model of the shared database is introduced. And, the differences of this model with data warehouses and conventional operational databases are analyzed.Also discusses problems of data integration of multiple data sources based on shared database. Specifically, it gives some solutions to deal with schema collision and data exception during the process of data integration. Finally, briefly discusses how and when the data stored in shared database should be updated.