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   数据库规范化 的翻译结果: 查询用时:0.016秒
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数据库规范化
相关语句
  database normalization
     Database Normalization and an Improved Synthesizing Algorithm
     数据库规范化及一个改进的合成算法
短句来源
     The paper also extends the content of computer-aided database designing system and realizes a system of auto-detecting and auto-producing database Normal Form in view of the theory of database Normalization.
     在研究数据库规范化理论的基础上,对计算机辅助数据库设计系统的内容进行了扩充,成功实现了数据库范式的自动检测与生成系统。
短句来源
  database standardization
     Database standardization and system optimization
     数据库规范化及系统优化
短句来源
     In allusion to the multiplicity of parameters and large quantity of information in locomotives′ overhaul management, the holistic and modularized designing principles are brought. the database standardization design based on E—R(entity relation) method is discussed, and the main functions and characteristics of Locomotive Database Management Information System are introduced.
     针对机车检修管理工作参数多样、信息量大的特点,提出了整体性、模块化的设计原则, 论述了基于E—R(实体关系)方法的数据库规范化设计实现,并介绍了机车数据库管理信息系 统的主要功能和特点。
短句来源
  “数据库规范化”译为未确定词的双语例句
     Aim To introduce the normalization treatment of the database BITHMS and discuss the method of dynamic quantity inquiry in the database access object of Delphi Methods The first and second normal form are used to treat the database BITHMS,and dynamic method is adopted for parameter inquiry Results and Conclusion Data consistency in BITHMS is improved,redundant data reduced,and the speed of inquiry into database enhanced
     目的论述BITHMS系统的数据库规范化处理,讨论Delphi数据库对象的动态参数查询方法.方法采用第1、第2规范化形式对数据库进行处理,用参数查询的动态化方式实现对数据库的快速查询.结果与结论改善了BITHMS系统的数据一致性,减少了数据冗余,提高了数据库的查询速度.
短句来源
     STUDY ON NORMALIZATION OF TEMPORAL DATABASE WITH MULTIPLE TIME GRANULARITIES
     具有多时间粒度的时态数据库规范化问题研究
短句来源
     Data dependencies is a kind of internal relation between data in relation database, it acts an important role in standardization design of database.
     数据依赖是关系型数据库数据之间的内在联系,在数据库规范化设计中数据依赖起着重要的作用。
短句来源
     By using relational database theory, the database for administrating the piping system in the petrochemical enterprises was designed. MSS SQL Server 6.5 was used to create the structure of the database and PowerBuilder 6.0 was used to build the database administration system and user interface. At the same times, SQL structural retrieval language was used as the tools to operate the database.
     应用关系型数据库规范化理论设计了石化企业管道管理系统的数据库结构 ,采用MssSQLServer6.5数据库系统的库结构 ,用PowerBuilder6.0语言编制数据库管理系统和用户界面 ,并应用大量的SQL结构化查询语言作为数据库的处理工具。
短句来源
     The necessity of establishing about anticorrosion Synthetic Managing System were probed on the basis of a detailed investigation of the Petrol Chemical Crop. They were designed by using the standard theory of the related database, and were established by Mss SQL Server 6 5 system. The database managing system and user’s interface were programmed with Power Builder 6 0. SQL (Structure Query Language) was extensively applied as database handling tool.
     应用关系型数据库规范化理论设计了石化企业设备防腐信息管理系统的数据库结构 ,采用MssSQLServer6 5数据库系统建立库结构 ,PowerBuilder 6 0语言编制数据库管理系统和用户界面 ,并应用大量的SQL结构化查询语言作为数据库的处理工具。
短句来源
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  相似匹配句对
     The stondardization of database
     数据库规范化
短句来源
     Data standardization technique
     数据库规范化技巧
短句来源
     Database
     数据库
短句来源
     The database will give an alarm automatically.
     数据库自动报警;
短句来源
     Regulate the Police Entrapment
     “警察圈套”的规范化
短句来源
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  database normalization
Database normalization can essentially be defined as the practice of optimizing table structures.
      
It uses an analogous method of database normalization in order to normalize ontologies.
      
Other topics including database normalization, database reporting, and database maintenance will be covered utilizing an ANSI SQL language.
      
  database standardization
Database standardization is one possible solution, but this has proven to be problematical in practice.
      


In the normal form theory of relational database, Codd third normal form (3NF) and Boyoe-Codd normal form(BCNF)may still contain some simple removable superfluous attributes. The main purpose of this Paper is to prove that an improved third normal form (I3NF) can be obtained after removing the superfluous attributes from the third normal form. It has also been proved that the method proposed is superior to the decomposition method of normalization without affecting its covering and re-constructibility. As an...

In the normal form theory of relational database, Codd third normal form (3NF) and Boyoe-Codd normal form(BCNF)may still contain some simple removable superfluous attributes. The main purpose of this Paper is to prove that an improved third normal form (I3NF) can be obtained after removing the superfluous attributes from the third normal form. It has also been proved that the method proposed is superior to the decomposition method of normalization without affecting its covering and re-constructibility. As an extension of this method, an improved BCNF can be obtained similarly.

在关系数据库规范化理论中第三范式(3NF)和BC范式(BCNF)仍可能存在可消去的冗余属性。本文主要工作是证明在3NF中消去冗余属性后成为改进的第三范式(I3NF)是可行的。这个新的范式(I3NF)所提出的删除规范化方法比规范化的分解方法功能更强些,而保证其覆盖和不丢失性。这种方法也可以推广到BCNF的研究,得到改进的BCNF(IBCNF)。

An anomaly in the statement of the well-known Berstein algorithm for the automatic generation of Third Normal Form schemas is identified.This anomaly causes some transitive dependencies to escape detection.In order to correct this situation,the transitive dependency test is altered to check for offending attributes instead of entire functional dependencies.An enhanced algorithm is proposed and validated.As a result of this enhancement of the normalization algorithm,the applicability of an important database...

An anomaly in the statement of the well-known Berstein algorithm for the automatic generation of Third Normal Form schemas is identified.This anomaly causes some transitive dependencies to escape detection.In order to correct this situation,the transitive dependency test is altered to check for offending attributes instead of entire functional dependencies.An enhanced algorithm is proposed and validated.As a result of this enhancement of the normalization algorithm,the applicability of an important database design tool is increased.

在关系式数据库规范化研究中,(美)Berntsein算法是大家熟悉的自动生成第3范式的算法,然而在某些情况下该算法对传递依赖及部分依赖关系,不能完全消除,其结果不满足第3范式.本文提出的改进算法解决了这个问题,为数据库模式设计增加一有力工具.

In this paper, based on data analysis ,a series of produvtiverules is proposed by applyingthe formalization theory about relationaldatabase. A specific expert systim (ERTORS3) for database design is de-signed and implemented on IBN PC with PROLOG. Its knowledge base isconsists of a esemantic network portraying application and a set of produc-tive rules which can transform a semantic network into relational databaseforms. By means of deductive mechanism of PROLOG, relationanldatabase forms in 3NF is generated...

In this paper, based on data analysis ,a series of produvtiverules is proposed by applyingthe formalization theory about relationaldatabase. A specific expert systim (ERTORS3) for database design is de-signed and implemented on IBN PC with PROLOG. Its knowledge base isconsists of a esemantic network portraying application and a set of produc-tive rules which can transform a semantic network into relational databaseforms. By means of deductive mechanism of PROLOG, relationanldatabase forms in 3NF is generated automatically.

本文在数据分析的基础上,运用关系数据库的规范化理论概括出一系列产生规则,设计并在IBM PC上用PROLOG语言实现了一个特定的专家系统(ERTORS3),其知识库由一个描绘应用的语义网络和一组能将语义网络转换为关系数据库的产生式规则组成,利用PROLOG的推理机制自动生成能满足3NF关系的关系数据库。

 
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