Database System Concept的意思|示意

SQLite has no concept of user accounts, and instead relies on the file system for all database permissions.

SQLite没有用户帐户概念，而是根据文件系统确定所有数据库的权限。

It also introduced briefly the concept of navigable database and discussed the source of the navigable data in the city transportation system and the theories of navigable data processes.

在简要介绍导航数据库概念后，讨论了城市交通系统中导航数据的来源及导航数据的处理理论。

Extensive and new application fields and special requirements have brought about the emergence of object-oriented database which introduces the concept of object into database system completely.

广泛而新型的应用领域和特殊要求导致了在数据库系统中全面引入对象概念的面向对象数据库的产生。

Suffice it to say that anyone wanting to create a database system must be familiar with the concept of normalization.

任何想要创建数据库系统的人们必需熟悉标准化的概念,只要说明这个就够了。

This paper introduces the basic concept and model of access security control of the database system in a multiuser information system. It also describes its concrete implementation.

本文介绍了多用户信息系统中数据库的安全性控制的基本概念及控制模型，以及在多用户信息系统中安全性控制的实现方法。

This paper describes the concept, system structure of the Decision Support system (DSS) firstly, then introduces the database, model library, knowledge library and arithmetic library of the DSS.

本文首先对决策支持系统(dss)的概念、体系结构进行了简要的介绍，阐述了DSS的数据库系统、模型库系统、知识库系统以及方法库系统。