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- temporal database model 时态数据模型
- Relational OLAP uses the relational database model. 关系 OLAP就利用了关系数据库模型。
- As a front-end of commercial DBMS, TimeDB, which is a successful prototype of temporal database management system, basically realizes the managements of temporal data. 作为商业DBMS的前端构件,TimeDB基本实现了时态数据管理功能,是比较成功的时态数据库管理原型系统。
- The paper briefly introduce the production, development and the application prospect of TGIS, elaborates the concept of temporal database and educe the bitemporal theory. 本文简要介绍了时态GIS的产生、发展及应用前景,阐述了时态数据库的概念,引入了双时态理论。
- SAILII is a spatio-temporal DBMS and preferably implements the theory, technology and mechanism of integration of temporal database and spatial database. SAILII原型系统作为一个时空数据库管理系统,较好地集成了时态数据库和空间数据库的理论、技术和机制。
- The database model failed to validate. You must fix the error(s) listed in the output window before you can proceed. 对该数据库模型进行校验时失败。必须更正输出窗口中列出的错误才能继续。
- But mapping class hierarchies to a relational database model might prove somewhat difficult. 但是,把类的层次结构映射到关系数据库模型,可能会比较困难。
- The workflow of the system is described.The database model of the system is defined. 提出该系统的体系结构,描述其工作流程。
- How to establish the effective database model,speed up the database creation process,is the key to database application procedure implementation. 如何建立有效的数据库模型,加快数据库建立过程,是数据库应用程序实施的关键。
- When you try to update a Database Model Diagram that is connected to an Oracle database, the Database Refresh Wizard disappears and Visio 2003 appears to stop responding (hangs). 当您尝试更新数据库模型图连接到Oracle数据库,数据库刷新向导消失并且Visio 2003似乎停止响应(挂起)。
- A crucial problem that needs to be solved for normalization of temporal databases is to compute the finite closure of attributes for TFDs. 时态模式规范化所要解决的一个关键问题是求解时态函数依赖的有限属性闭包问题.
- For the application collective MDBMS working in spreading area,this paper discusses and works out an intelligence multimedia web database model based on CSCW. 从CSCW的研究思路,讨论对于地域分散的多媒体数据库系统的群体应用,提出并分析了多媒体数据库协同工作模型。
- Jumping into RDA, we open the sensor database model, which is still in the logical design phase (see Figure 1), and then add the attribute with copious annotations. 进入 RDA,我们打开传感器数据库模型,它仍然处于逻辑设计阶段(见图 1),然后添加带大量注释的属性。
- In this paper, problems of handling time imprecise in temporal databases are discussed and the representations of imprecise time intervals are presented. 讨论了时态数据库处理不明确时间存在的一些问题,并给出了描述不明确时间间隔的方法。
- Abstract: The afforesting decision-making maintaining system is designed by using afforesting and computer technology. This thesis studies basic database model standardization. 摘要:滇中造林决策支持系统是一项林业技术和信息技术结合的产物,本文研究的是基础数据库,完成的工作是对数据库模型的规范化理论分析。
- What happened to the database modeling templates, menu, and features? 数据库建模模板、菜单和功能出什么问题了?
- It used network client/server database model and desigened one part of the One Card Through Of the School (OCTOS)-network machine room management system. 摘要本文介绍利用局域网的客户端-服务器数据库操作模式,设计校园一卡通的子系统;网络机房记费与管理系统。
- In this paper,the question of event temporality were discussed in active temporal database under the presupposition of temporal consistency. Then temporal relation of composite events and Allen relation between arbitrary two events were dealed with too. 在事件时态一致性的前提下详细讨论了主动时态数据库中事件的时态问题;给出了复合时态事件的时态关系以及任意两个事件之间的allen关系.
- Combining CAD, GIS and DBMS, this paper analyzes the geometric network model, the component of urban planning road features, and designs a database model of urban planning road information system. 摘要分析了城市规划道路要素的构成,并在几何网络模型基础上,对城市规划道路信息系统数据库进行了设计。