We discovered that there is a point where aggregate index costs—more-expensive INSERT and DELETE operations, for example—outweigh a new index's query speed-up benefit.
我发现有一个聚合索引成本的点 —例如，更为昂贵的INSERT和DELETE操作 —超出一个新索引的查询加速所能带来的效益。
This paper introduces a solution solving the problem of low response speed of aggregate operations in statistical database (SDB_s).
本文主要论述利用专家系统技术解决统计数据库中聚集操作响应速度慢和瓶颈问题。
The aggregate index that appears the variation magnitude and variation speed and the variation nature is proposed to describe quantitatively the variation nature and complexity of heterogeneity.
提出了评价储层非均质性的综合评价指标，对储层非均质性的变化幅度、变化速度以及变化的随机性进行定量描述。
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聚合《网络世界》10年专业媒体优势，为各IT企业的CIO、资深IT技术经理、工程师提供网络测速，技术白皮书下载服务。
Aggregate "network World" 10 years of professional media advantage, for the it enterprise CIO, Senior it technical Manager, engineers provide network speed, technical white paper download services.
聚合《网络世界》10年专业媒体优势，为各IT企业的CIO、资深IT技术经理、工程师提供网络测速，技术白皮书下载服务。
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