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索引选择
相关语句
  index selection
     Model for Index Selection Based on SQL Server
     基于SQL Server的索引选择模型
短句来源
  selecting index
     Algorithms Selecting Index for OLAP
     关于OLAP的索引选择算法
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  “索引选择”译为未确定词的双语例句
     We consider to build indexes on subsets of the primary keys rather than the full sets if the index for these smaller index can be maintained the required query performance. Based on that, we propose an index filter arithmetic, PFS (primary DPrime Filtration Strategy), to reduce query in database and get the satisfied candidate indexes.
     根据该观点,本文提出了一个索引筛选算法,即基于“主优势属性集”的索引选择策略(PFS,Primary DPrime Filtration Strategy),通过该算法可以在获得满意的候选索引的同时,尽量减少对数据库的查询次数,从而实现对索引筛选工作的优化。
短句来源
  相似匹配句对
     Choice
     选择
短句来源
     Index
     索引
短句来源
     Algorithms Selecting Index for OLAP
     关于OLAP的索引选择算法
短句来源
     Model for Index Selection Based on SQL Server
     基于SQL Server的索引选择模型
短句来源
     The choice of LU Xun
     鲁迅的选择
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  index selection
Using principles of ecosystem health quantitative assessment and diagnosis index selection, 17 factors were considered from three aspects: resource and environmental capacity, social and economic impact, and ecological services.
      
This index selection which collects multicharacters information has more advantage than monocharacter selection.
      
In agreement with theory, antagonistic index selection generally yielded smaller genetic responses than single trait selection.
      
Index selection for genetic improvement of quantitative characters
      
(3) evaluation of relative economic weights and (4) internal deterrents to index selection.
      
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  selecting index
The experiments demonstrate how reliably the method of selecting index attributes affects measurable properties of a document browsing space.
      
We proposed the method of selecting index words by using the fuzzy reasoning.
      
We proposed a method of selecting index pages automatically by using the frequency of word co-occurrence.
      


A new multi-attribute indexing——two dimensional combined attribute indox, which can be efficiently applied to the field of engineering database, has been proposed. The retrieval algorithm with the rectangle area qualification has been derived, and the complexity of the algorithm has been also analyzed. The minimum storage cost of the index and the optimal index selection have been discussed respectively.

数据库技术不仅在商业,企业管理,情报资科管理等方面获得了广泛的应用,而且在工程技术领域也有广阔的应用前景。本文针对工程数据库的二维数据及用户常提出的一类查询——区域查询提出了一种新的多属性索引法区域组合属性索引;并给出了矩形区域查询算法,分析了算法的复杂性;讨论了索引的最小存贮开销问题和最佳区域组合属性索引选择问题。这种索引方法具有较高的查询效率,并能实现各种形状的区域查询。

In this paper, the printing method and technigae of Multi-Dimensional crisscross report forms for micro-computer were studied and analized A Choosing method by means of function program and node index of a model branch was raise The problems of memory deficiency and choosing fiexibly in the printing of Multi-dimensional chinese character report forms in our country were resolued. This method has made computer management systems for industrial currency earning and the survey of expart enterprises in Shaanxi province...

In this paper, the printing method and technigae of Multi-Dimensional crisscross report forms for micro-computer were studied and analized A Choosing method by means of function program and node index of a model branch was raise The problems of memory deficiency and choosing fiexibly in the printing of Multi-dimensional chinese character report forms in our country were resolued. This method has made computer management systems for industrial currency earning and the survey of expart enterprises in Shaanxi province put into execution.

本文针对微计算机进行多维纵横向报表的打印方法及技巧进行了分析研究,提出一种利用函教程序及树枝型结点索引选择法,解决了国内多维汉字报表打印过程中内存不足与选择灵活性问题。并在陕西省工业创汇及出口企业概况计算机管理系统中得以实现。

Data warehouse collects copies of information from remote sources into a single database, including base relations and materialized views. Since the change of remote data would break out data consistency, keeping the views consistent with the base relations creates additional overhead. This paper discusses a view index selection problem and presents an A * based solution to the problem for the best solution.

数据仓库是集中了多个远地数据源数据复本的单一数据库,包含有基本关系和物理存储的视图。数据源数据的变化会导致数据仓库中数据不一致,维护视图和基本关系的一致增加了额外的维护代价。有选择地存储一些视图和索引是降低维护成本的有效途径。本文讨论视图索引的选择问题,通过例子提出了利用A~*算法寻找最优解的算法。

 
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