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| 基于查询的改进数据仓库模型研究 |
| An Improved Data Warehouse Structure Model Based on Query |
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| DOI：10.3969/j.issn.1671-5322.2009.02.017 |
| 中文关键词: 数据库仓库 查询 更新 元数据库 |
| 英文关键词: data warehouse query updating meta-database |
| 基金项目: |
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| 摘要点击次数: 4250 |
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| 中文摘要: |
| 提出-种改进的数据仓库体系结构,在数据仓库中添加-个辅助结构作为接收和存储更新数据的暂存库,直到数据仓库获得空闲周期,加入新的数据和更新必要的视图:通过试验模拟两种数据仓库结构,验证了新的模型在设计和性能上的优越性. |
| 英文摘要: |
| In this paper,an improved data warehouse structure model is presented in which an auxiliary structure is added to the warehouse to accept the updates and store them until the data warehouse has available cycle time to incorporate the new data and update the necessary views.Finally,two data warehouse environments are simulated,and the results of simulation prove the superiority of the improved model in design and performance. |
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