Introduction to Database Conceptsdoi:10.1007/978-1-4302-0161-8_1
To start our discussion of database, in this section we examine some applications of database systems. For the purpose of this discussion, we consider a database to be a collection of related data and a databse management system (DBMS) to be the software that manages and controls access to...
数据库模式(schema)是数据结构的逻辑容器,被称作模式对象(schema objects) 每一个数据库用户拥有一个和用户名相同的模式,例如hr用户拥有hr模式。 在一个产品数据库中,模式的拥有者通常是数据库应用程序而不是一个人。 在一个模式中,每一个模式对象都有一个唯一的名字。如hr.employees代表hr模式下的employees表。
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Database Management Systems, R. Ramakrishnanm, J. Gehrke Introduction to Database Systems 《数据库系统引论》 (Fall 2008) Zhou Shuigeng (周水庚) School of Computer Science Fudan University Cont
The remaining rows in the table make up an instance of the database. COMP231 * What is a DBMS?数据库管理系统(DBMS) DBMS – Database Management System数据库管理系统(Database Management System)是位于用户与操作系统之间的一层数据管理软件。 A DBMS is a collection of software programs to enable...
1.1 Database-System Applications 这一节比较简单,选取了几段话作为重点。 Task of Database Systems: A database system is a large, complex software system whose task is to manage a large, complex collection of data. Key to the management of complexity is the concept of abstraction. Abstraction ...
《数据库系统概念 Database System Concepts》原书教学资源(第七版,PPT课件讲稿,英文版)Chapter 3 Introduction to SQL点击下载完整版文档(PPTX)文档信息 资源类别:文库文档格式:PPTX文档页数:60文件大小:1.21MB团购合买:点击进入团购内容简介 ▪ Overview of The SQL Query Language ▪ SQL Data Definition ▪ ...
《数据库系统概念 Database System Concepts》原书教学资源(第五版,附录,英文版)Appendix C Advanced Relational Database Design 《数据库系统概念 Database System Concepts》原书教学资源(第五版,附录,英文版)Chapter B Hierarchical Model 《数据库系统概念 Database System Concepts》原书教学资源(第五版,附录,英...
Your choice of DatabasePlatform further customizes your project for a particular type of database (see Section 96.1.3.1, "Database Platforms"). For more information, see Section 98.1, "Introduction to Database Login Configuration". 96.1.2.2 EISLogin If you are creating a project that accesses...