• 层次数据库(HDBMS)中,首先是从严格定义数据节点开始的。

    In a hierarchical database (HDBMS), you begin with a strictly defined tree of data nodes.

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  • 对于物理记录处理层次数据库存储记录应用程序来直接操纵的。

    Deals with physical records: The records stored in hierarchical databases are manipulated directly by an application.

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  • 针对单个问题优化本质上,层次数据库通过一条指定的路径优化数据访问

    Optimized for one problem: By their nature, hierarchical databases optimized access to the data through one specific path.

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  • 一般而言层次数据库兴起于 60年代,用当时的大型机数据处理技术方面。

    Generally speaking, h ierarchical databases arose in the 1960s, on the mainframe data processing technology of the time.

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  • 这个目标层次数据库几乎自动完成的,关系数据库需要做些工作

    This goal is accomplished almost automatically in hierarchical databases, but takes work in relational ones.

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  • 第三通过工程数据库研究运用逻辑层次数据库存储图形约束水工图库管理

    Third, through the study on project database, use the data stock of logic level to store the figure restraint and management of the water conservancy drawing-library.

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  • 关系型数据库已经超越了持久性存储设备角色,它们解决上述层次数据库两个缺点

    They also address the two shortcomings of hierarchical databases listed above. The major characteristics of relational type databases are.

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  • 大多数情况下,就用户而言他们关心我们的工作使用层次数据库关系数据库面向对象数据库平面文件系统还是魔术完成

    In most cases, users don't care if their job is accomplished with hierarchical databases, relational databases, object-oriented databases, flat-file systems, or black magic.

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  • 性质而言关系数据库层次数据存储结构(xml)灵活

    Relational databases are, by their nature, more flexible than hierarchical data storage structures such as XML.

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  • 针对航空火控系统结构检测特点,设计了一种基于层次数据模型航空火控系统检测数据库系统。

    A test database system for the aeronautic fire control system based on hiberarchy is designed in allusion to the structure and the test characteristic of the aeronautic fire control system.

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  • 针对航空火控系统结构检测特点 ,设计一种基于层次数据模型的航空火控系统检测数据库系统

    This paper makes a study of the application of Direct3D in development of air combat simulation system of airborne FCS (Fire Control System) and introduces the method of software development.

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  • 针对航空火控系统结构检测特点 ,设计一种基于层次数据模型的航空火控系统检测数据库系统

    This paper makes a study of the application of Direct3D in development of air combat simulation system of airborne FCS (Fire Control System) and introduces the method of software development.

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