The key to create a data warehouse is to design storage scheme, i. e., to decide on the storage pattern of data.
建立数据仓库的关键是设计存储方案,即确定数据的存储模式。
For quantitative analysis of automobile reliability based on its reliability data collected, it is necessary to recognize the distribution pattern of data in advance.
根据汽车可靠性工程数据,对其进行可靠性定量分析时,应该首先判别可靠性数据的分布规律。
The pattern of data using in an application is variable. When the quantity of data updating is large, cache with fixed size will lead to the sharp decrement of application performance.
但应用系统使用数据的情形是动态变化的,特别当数据更改数量大时,固定缓存会使应用系统的性能急剧下降。
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