Without column data-value distribution information in the catalog, DB2 will assume an even distribution of values, which may lead the optimizer to a sub-optimal access path.
如果编目中没有列数据值分布信息，DB 2就会假设值是均匀分布的，这可能导致优化器选择非最优的访问路径。
From the instance value distribution of attributes shown in Listing 5, GASF determines that it has to create another questionnaire to further drill down for the searched object.
根据清单5中所示的属性的实例值分布，GASF判断必须创建另一调查表，以进一步挖掘搜索对象。
In 1975, Yang Le and Zhang Guanghou published their result on the value distribution theory.
1975年，杨乐、张广厚发表了关于值分布理论的研究。
The authors introduce extreme value distribution and describe the high price and low price by it.
将极端值分布函数用于股票最高价与最低价的描述。
There is an important Yang Le inequality in the value distribution theory of meromorphic function.
在亚纯函数值分布论中，有重要的杨乐不等式。
The core tendency of multinational enterprise brought about unbalance of global industrial chain's value distribution.
跨国企业的核心化趋势，导致了全球产业链价值分布的非均衡性。
The application of CAS in analysis of customer structure, customer buying pattern and customer value distribution is discussed.
阐述了CAS在企业分析客户组成、客户购买模式、客户价值分布等方面的应用。
The difference of the VOT value distribution on the value axis leads to the interlanguage phenomena for Mandarin learners of English.
两种语言塞音VOT分布的差异，使得以汉语为母语的英语学习者在生成英语浊塞音时表现出中介语的特点。
The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate.
这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下风力的侵蚀 搬运与堆积作用；
The statistical model of frequency and intensity of anomalous microtherm events in Nanjing is established by means of the extreme value distribution theory of stationary time series.
本文借助于平稳时间序列的极值分布理论，对南京地区异常低温事件频次和强度建立统计模型。
Based on wind tunnel investigation of Yulin airport terminal old buildings, the mean wind loading, the dynamic wind loading and extreme value distribution of the large arc roof are studied.
根据榆林机场航站楼风洞试验结果，详细分析了大跨弧形屋面及弧形挑篷上的平均风荷载、脉动风荷载及其极值分布，研究了平均风荷载、脉动风荷载的分布特性。
To summarize the univariate extreme value distribution models and put forward a Combined distribution model, which is suitable for statistical analysis of storm surge in typhoon-effected area.
本文总结了海岸工程水文的一维统计分布模型，提出了适用于我国沿海风暴潮影响地区的增减水重现值计算模型——组合分布模型。
A random process probabilistic model of the loading maximum value distribution is determined based on the data of actual measurment and investigated operation situation for gantry crane on wharf.
本文以现场量测的码头门机荷载及运行情况调查资料为依据，确定了该荷载最大值分布的随机过程模型，并对该荷载进行概率统计分析。
The results show that the deep substance may uprise in this area, so the distribution of P-wave velocity, Q value distribution and VP/VS distribution are closely related to seismicity in this area.
结果表明在该地区很可能存在深层物质上升，从而表现出地震活动与P波速度场、Q值分布和VP/VS分布的相关性。
The diameter structure, importance value, distribution pattern and survival curve of broad-leaved Korean pine of over-logged forest in Jingouling forest Farm was analysed.
对金沟岭林场阔叶红松过伐林直径结构、重要值、分布格局以及存活曲线进行了分析。
The diameter structure, importance value, distribution pattern and survival curve of broad-leaved Korean pine of over-logged forest in Jingouling forest Farm was analysed.
对金沟岭林场阔叶红松过伐林直径结构、重要值、分布格局以及存活曲线进行了分析。
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