首先介绍了大型数据库系统的定时机制原理，然后阐述了用数据库系统实现定时控制的优势。
This paper introduces the principle of timing control based on large database management system, and describes its superiority.
在对空间数据库系统实现技术及空间数据挖掘系统等进行比较分析的基础上，提出了一种空间数据挖掘系统的实现模式。
After studying the analysis and comparison of the realization techniques of spatial database system and spatial data mining systems, we propose a development model of spatial data mining system.
该解决方案通过建立统一的数据模型，使用元数据与多数据库系统实现了对分布的异构的空间数据的统一访问请求服务。
Based on the unified data modeling, this resolution realizes the uniform request service to distributed heterogeneous spatial data by metadata and multi-database system.
特定的数据库系统提供这些接口的具体实现。
Specific database systems provide concrete implementations of these interfaces.
本文假设您了解关系数据库系统(RDBMS)的基本原理，并且用DB 2或其他RDBMS实现过应用程序。
This article assumes that you have a basic knowledge of relational database systems (RDBMS) and have previously implemented applications using either DB2 or another RDBMS.
在关系数据库系统内部，应用程序和实际数据库之间的主要交互都是以会话或连接的sql语句形式来实现的。
Within a relational database system, most interactions between an application and the actual database are in the form of SQL statements within a session or connection.
总之，种种约束限制了关系数据库系统的灵活性，并因此限制了系统用户在数据库内部实现复杂、交互式模型的能力。
Overall, these restrictions limit the flexibility of relational database systems and, thus, the ability of users of such systems to implement complex, interactive models within the database itself.
如果只是学习使用数据库，或者只想快速地实现数据库应用程序的原型，那么大多数商业数据库系统可能过于笨重。
If you're just learning to work with databases, or if you want to quickly prototype a database application, most commercial database systems can be cumbersome.
为克服这种约束并最大化实现关系数据库系统的灵活性，DB2V9.5引入了全局变量的概念。
To overcome this restriction and to maximize the flexibility of a relational database system, DB2 V9.5 introduces the concept of global variables.
接下来的几章介绍了该数据库系统的实现、管理和开发等概念。
In subsequent chapters, implementation, administration, and development concepts are covered.
而且这种加密方式依赖于数据库系统的扩展索引机制，并不能在所有数据库上实现。
Moreover, the encryption method is based on the extended index mechanism of database system, and can not be implemented on all databases.
ApacheDerby数据库为SQL-92标准提供了几乎完整的实现，所以用Deryby开发的应用程序可以容易地移植到其他数据库系统。
The Apache Derby database provides a nearly complete implementation of the SQL-92 standard, so applications developed with Derby can be easily transported to other database systems.
文章介绍入侵容忍数据库系统中选举方案的设计与实现。
This paper introduces the design of balloting in intrusion tolerant database system.
从入侵容忍的理论入手，论述了一种入侵容忍的数据库系统的设计方案和在该系统中进行选举的实现过程。
It begins with the theory of intrusion tolerant, discusses a design of the database using the theory and the realizing of ballot in such a system.
实时调度数据库系统是实现工业过程实时调度与管理一体化的核心。
The database system for real time scheduling is a kernel to realize the integration of scheduling anel management.
通过网络和数据库系统能方便地同其他系统互连，既能实现数据共享，又能保证系统的独立性、安全性。
Can interlink with the other systems through web net and date-base system conveniently, can not only realize data sharing function, but also ensure the independent ability and security of the system.
从DM 4数据库系统的自调节技术实现中可以得出一个结论，那就是数据库的自调节技术应当建立在监控，反馈，调节这样一个循环的控制机制之上。
From the automatic tuning technology of DM4 system, a major conclusion is that self-tuning database technology should be based on the paradigm of a feedback control loop.
本文论述了如何在微机上实现汉字操作系统及关系数据库系统。
The implementations of Chinese character operating system and relational data base system on microcomputers are discussed in this paper.
从数据库系统的安全机制和数据库数据的安全机制两方面，论述ORACLE数据库安全措施和方法以及具体实现方式。
Safe policy and methods of ORACLE database are discussed on two aspects: safety of database system and safety of data stored in the database.
因此，野外工作平台要求能够装载GIS和数据库系统软件，实现对野外地质信息进行现场的完整记录。
So fieldwork platform have to load GIS and database system to come true integrity geologic information in spot.
根据GIS、数据库系统的原理，设计实现了河道与库区泥沙淤积系统的数据模型、功能模块和主体结构，成功地将基础数据库进行了入库操作。
Based on the principle of GIS and database system, data model, function modules and agent structure of sediment silting system of watercourse and reservoir zone is designed.
从应用角度出发，介绍了SQLSERVER数据库系统的安全要求、安全结构以及安全性实现方法。
Starting with the application angle, the safe request, safety mechanism as well as the safe realization method of SQL SERVER database system were introduced in the article.
在此方案下，还可以对应用模块进行切换，并实现数据库系统的容错。
Data consistency is achieved by Shared RAID and the switch between different application modules and fault tolerance capability of the database system are also realized.
在嵌入式数据库系统中，实现高效查询必须有一套高效的索引机制。
In the embedded database system, the highly effective index mechanism is the base of the highly effective inquiry.
本文论述了基于NF2模型实现多介质数据库系统NHMDB的方法。
The method to implement multimedia database system NHMDB based on NF2 model is described in the paper.
在所研究的空间分析数据库系统SADBS中实现了R树索引。
We implement the R-tree indexing in SADBS which is a spatial analysis database system developed by us.
实时调度数据库系统是实现流程工业CIMS的关键技术之一。
The database system for real time scheduling is one of the key techniques to realize the process industrial CIMS.
同时，给出了基于DB2的户籍管理多媒体数据库系统的实现方法，说明了系统实现中的关键技术。
Meanwhile, it provides ways that realize DB2-based multimedia database system of census register management, and shows key technology of its realization.
通过建立公路风吹雪数据库系统，可以加快信息处理速度，实现信息管理实时化。
Through building the database system of snow drift on highway, information processing speed quickened and information management automatization was realized.
通过建立公路风吹雪数据库系统，可以加快信息处理速度，实现信息管理实时化。
Through building the database system of snow drift on highway, information processing speed quickened and information management automatization was realized.
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