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optimization of queries
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  “optimization of queries”译为未确定词的双语例句
     On Optimization of Queries in Visual BASIC
     优化Visual Basic查询的方法
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     This paper will lucubrate optimization of queries in distributed database whererelations are hash partitioned and bring forward a new heuristic algorithm—a hashpartitioning equijoin optimization heuristic algorithm based on dividing query graph.
     本论文通过阅读大量文献,首先描述了各种分布式数据库的连接算法,然后对基于哈希划分的分布式连接算法进行了详细讨论,特别是对CHAIN 算法和Kruskal 启发式算法进行了较深入的分析和研究,并在此基础上引入了一种基于查询图分割的启发式哈希划分连接算法。
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     Optimization on P.E.
     优化体育教学方法,首先,须确立适度可行的教学目标;
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     The optimization of G.
     对于G.
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     OPTIMIZATION OF ROLLING
     轧制优化
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     Clearance Optimization
     CFM56高压涡轮间隙的优化
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     CONSTRUCTION QUERIES
     建筑咨询
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  optimization of queries
The optimization of queries stated on a single fragmented relation is considered, and a method for its solution is presented.
      
The analysis of map algebra has clear applications for the optimization of queries in spatial databases.
      
NEATO's search strategy will be extended to support optimization of queries whose complexity is too high to permit exhaustive search.
      
Metainformation assists in the selection of sources relevant for a query, and the creation and optimization of queries against the source.
      
Advanced systems also handles optimization of queries including this type of user-defined information.
      


New characteristics of the ORDBMS are introduced, the ORDBMS should support the types of data and functions defined by users; complex objects and big objects can be stored under their mechanism of storage; the structure of index of the ORDBMS must be classified by classes; the ORDBMS must support the inheritance of data and functions. This paper discusses the effect of these characteristics on the optimization of query policy, points out that the traditional query policy should not be fit for...

New characteristics of the ORDBMS are introduced, the ORDBMS should support the types of data and functions defined by users; complex objects and big objects can be stored under their mechanism of storage; the structure of index of the ORDBMS must be classified by classes; the ORDBMS must support the inheritance of data and functions. This paper discusses the effect of these characteristics on the optimization of query policy, points out that the traditional query policy should not be fit for these new characteristics and puts forward the model of query optimization based on cost.

讨论了ORDBMS的一些新特性 ,ORDBMS应该支持用户自定义的数据类型和函数 ;存储机制能够支持复杂对象或大对象 ;其索引结构必须是类属的 ;它还必须支持数据和函数的继承 .讨论了这些特性对查询优化策略的影响 ,指出传统DBMS的优化策略将不能适应这些新特性 ,提出了基于成本的查询优化模型

First,the paper engages in system analysis and system design of medical insurance management system,and then puts forward fundamental principle,fundamental structure and the components of system.In the analysis of the system,the paper focuses on the architecture and principle of the system.On the basis of such analysis,the paper discusses the environment of hardware,software platform and modules of the system,especially the problems about the security of the system and the optimization of query.At last,the...

First,the paper engages in system analysis and system design of medical insurance management system,and then puts forward fundamental principle,fundamental structure and the components of system.In the analysis of the system,the paper focuses on the architecture and principle of the system.On the basis of such analysis,the paper discusses the environment of hardware,software platform and modules of the system,especially the problems about the security of the system and the optimization of query.At last,the paper puts forward a scheme of interface of hospital information system.

首先对医疗保险系统进行了系统分析和系统设计 ,给出了系统设计的基本原理、基本结构和系统组成 ,在系统分析中着重分析了硬件的拓扑结构和系统的基本原理。在此基础上对系统设计中的硬件支撑环境、系统软件平台、系统相应模块进行了讨论 ,然后重点讨论了系统的安全问题以及系统查询优化 ,最后给出了与医院信息系统接口的解决方案。

With the development and application of network information, the method of information issuance is too simple to satisfy on the interchange and share of the information. XML provides a transform to solve the problem. With the maturity of XML technology, it becomes more important to establish various application based on XML and more important to query information effectively and exactly from XML data source. In the paper a new query language and the query in semistructured data, transform...

With the development and application of network information, the method of information issuance is too simple to satisfy on the interchange and share of the information. XML provides a transform to solve the problem. With the maturity of XML technology, it becomes more important to establish various application based on XML and more important to query information effectively and exactly from XML data source. In the paper a new query language and the query in semistructured data, transform output, integration of data and index in XML data are introduced. The structure, usage, optimization of query language of XML are also discussed.

随着网络信息的大量涌现和广泛应用,原来简单的信息发布技术已经不能满足必需的信息交流与共享,XML(eX tensibleMarkupLanguage)的出现似乎为上述问题的解决提供了转化。随着XML技术的不断成熟,要构建基于XML的各种应用,从XML数据源中准确有效地查询所需信息,也就变得越来越重要。文中对XML数据库查询语言及对半结构化数据查询、转换输出、数据集成、XML数据索引、结构模糊查询展开分析,详细探讨了XML查询语言的特点、模式、处理过程和查询优化等技术。

 
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