First analyze the access plan that the optimizer chooses when no distribution statistics are available, which is only basic statistics for the table CARS, and that its indexes exist. 首先来分析一下,在没有分布统计信息,而只有CARS表的基本统计信息及其索引的情况下,优化器选择的访问计划是怎样的。
After a review is finished, this view contains the list of categorized findings and basic statistics about the run. 审查完毕之后,这个视图包括一个运行的目录结果列表和基本统计。
Basic statistics and distribution statistics 基本统计信息和分布统计信息
When generating statistics, DB2 offers the possibility to create so-called distribution statistics in addition to the basic statistics. DB2在生成统计信息时,不但能提供基本统计信息,还允许创建所谓的分布统计信息。
Before examining distribution statistics, let's have a look at the basic statistics that are always collected for a table when RUNSTATS is executed. 在研究分布统计信息之前,我们先来看看基本统计信息,只要执行RUNSTATS即可收集这些表的相关统计信息。
Statistical views: Display basic profiling statistics for packages, methods, classes, and instances. 统计视图:显示包,方法,类和实例的基本配置统计。
The following RUNSTATS command collects only the basic statistics for the table CARS ( in schema SAMPLE) and the corresponding indexes 下面的RUNSTATS命令只收集CARS表(在模式SAMPLE中)和相应索引的基本统计信息
For the query in this article, the basic statistics of the referenced tables, columns and indexes were collected, such as the table cardinality, column cardinality, an so on. 对于本文中的查询,收集了引用表、列、索引的统计数据,如表基数、列基数等等。
But there is also information that the basic statistics cannot answer. 但是,还有一些信息是基本统计信息无法提供的。
In general, the basic statistics available to the DB2 optimizer does not detect data correlation. 通常,DB2优化器可用的基本统计信息不检测数据相关性。
This course hopes to equip students with some important statistical abilities in collecting and analyzing data, including:-basic statistics knowledge; 本课程希望培养修课同学搜集资料与分析资料的统计能力,包括:-基本统计知识;
Note: Basic statistics excluded data of skilled workers'schools, reformatory schools, adult schools, incumbent learning for Master and Doctor's degree and network education. 注:本表未含技工校、工读校、成人学校、攻读硕士博士学位的在职人员及网络教育数据。
The basic statistics that are required to achieve performance mangement are covered. 本课程还将介绍一些达到性能管理要求的基本统计数据。
The course will introduce the methods of field study, basic statistics, and the thesis writing. 本课程将介绍田野调查的方法、基本统计与论文的撰写等。
Human Settlement Basic Statistics 1990 1990 年人类住区基本统计资料
Seventeen important morphological characters were analysed to identify and evaluate genetic diversity of morphology of the Lespedeza populations. Fourteen vital morphological characters were studied using basic statistics, correlation analysis, factor analysis and cluster analysis. 以17个重要形态学性状进行了胡枝子属植物形态学的鉴定与评价,利用基本统计分析、相关分析、因子分析、聚类分析对其中的14个关健形态学性状进行了统计学分析;
A review of basic statistics concepts, research design and statistical analysis methods 医学统计学的基本概念与科研设计、统计分析方法概述
And also we analyzed recent ten-year basic statistics on the development of MEng education, combining the characteristics of life-cycle theory. 同时对我国近十年来工程硕士教育发展的基本数据进行分析,并结合生命周期理论的要素特征,可以发现,我国的工程硕士研究生教育已经开始步入发展的成熟期。
Basic Statistics of Adult Schools in China by Level Type 全国各级成人学校基本情况
The paper described the importance of the one-payment IC card system engineering in the construction of the digital campus in the aspect of providing the college the basic statistics and finance platform, achieving the standard management and providing the digital space throughout the college. 简述了校园一卡通工程在为学校提供的基础数据平台、金融平台,实现规范管理,形成的全校范围的数字空间,在数字化校园建设中起到的重要作用。
However, China has only the basic statistics of Freight Traffic and Freight Ton-kilometers, lack for the systematic statistics on the demand for and supply of logistics service. 而我国只有基本的货物运输量和货物周转量统计,缺乏全面的物流服务需求与供给统计资料。
Analyses and basic statistics of Chinese sci-tech periodicals 我国科技期刊基本状况统计与分析
The result of study shows: ( 1) There are heavy disparities in the basic statistics amountses of financial indexes between financial crisis enterprises and safe enterprises; 研究结果表明:(1)财务危机企业与财务安全企业的财务指标在基本统计量上存在很大差距;
Second, we observe the stock yield distribution graph 、 histogram and some basic statistics data and conclude that the stock returns of our country are non-Gaussian and have volatility clustering phenomenon. 第二,根据收益率变化图、柱状图和一些基本统计量分析我国股市的分布特征,发现我国股市的收益率序列不符合正态分布,有明显的波动群集现象。
As for data processing, SPSS software is used for basic statistics analysis and variance analysis. 对于数据的处理采用SPSS统计软件,进行了基本统计量的统计分析以及方差分析。
The project and basic statistics of project environment were introduced. 第三部分介绍了本项目和项目环境的基本情况。
Research methods are usually qualitative analysis like questionnaire, case analysis. Only a little analysis about the user behavior in microblog community based on the real data of the website, including frequency analysis, correlation analysis and other basic statistics. 研究方法多采用问卷调查、案例分析、理论解释等进行定性研究,少量关于用户行为的分析选取了微博网站的实际数据,但多停留于词频分析、相关性分析等基础统计。
Basic statistics company registration is a registration system according to the law which is for all various types of industry, various economic types and various organizational forms of enterprises, institutions, organizations and social organizations, grass-roots mass self-government organizations and individual business by the government. 基本统计单位登记是政府统计机构对社会各类行业,各种经济类型和各种组织形式的企、事业单位,机关和社会团体,基层群众性自治组织以及个体工商户,依法进行的注册登记制度。
Through basic statistics, we can conclude that old age vertigo syndromes rather scattered, almost all of phlegm and blood stasis syndrome were observed there. 通过基础数据统计,我们可以得出老年人眩晕证型分布比较分散,几乎所有证型均见痰瘀存在。