| 摘要: |
| 提出了一种版本控制集合刷新算法（VSRA）.它采用增量维护、版本控制和批处理机制保证数据仓库的联机维护和数据一致性.VSRA不仅减少了数据库和数据仓库之间的通信流量，而且提高了实体化视图的刷新效率.用户可以随时使用VSRA进行联机分析处理，并能得到正确的结果. |
| 关键词: 数据仓库 联机维护 实体化视图 集合 版本控制 |
| DOI： |
| 分类号: |
| 基金项目:This project is suppported by the Ninth Five-Year Pre-Research Project of China("九五“国防预研基金）。 |
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| A Set Refreshing Algorithm for Data Warehouse On-Line Maintenance |
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LI Zi-mu,LI Lei,ZHOU Xing-ming,WU Jian-ping
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| Abstract: |
| In this paper, a Version-control Set Refreshing Algorithm (VSRA) is proposed, which uses incremental maintenance, version-control and batch processing mechanism to guarantee on-line maintenance and data consistency. VSRA not only reduces communication between database and data warehouse, but also promotes the refreshing efficiency of materialized views. Users can perform on-line analytical process at any time and get correct results with VSRA. |
| Key words: data warehouse on-line maintenance materialized view set version-control |
