第1 章 数据库概述 ··························································································· 1__eol__1.1 数据库基本概念 ·············································································· 1__eol__1.2 数据管理技术的发展 ········································································ 4__eol__1.3 数据库系统的特点 ··········································································· 6__eol__1.4 数据独立性 ···················································································· 9__eol__1.5 数据库系统的组成 ········································································· 10__eol__习题 ·································································································· 11__eol__第2 章 数据模型与数据库结构 ·········································································· 12__eol__2.1 数据模型 ····················································································· 12__eol__2.1.1 数据与信息 ········································································· 13__eol__2.1.2 数据模型 ············································································ 13__eol__2.1.3 数据模型的组成要素 ····························································· 15__eol__2.2 概念数据模型 ··············································································· 16__eol__2.2.1 基本概念 ············································································ 16__eol__2.2.2 实体-联系模型 ····································································· 17__eol__2.3 逻辑数据模型 ··············································································· 18__eol__2.3.1 层次模型 ············································································ 18__eol__2.3.2 网状模型 ············································································ 20__eol__2.3.3 关系模型 ············································································ 22__eol__2.4 数据库系统结构 ············································································ 24__eol__2.4.1 模式的基本概念 ··································································· 24__eol__2.4.2 三级模式结构 ······································································ 25__eol__2.4.3 模式映像与数据独立性 ·························································· 26__eol__习题 ·································································································· 27__eol__第3 章 关系数据库 ························································································· 28__eol__3.1 关系数据结构 ··············································································· 28__eol__3.1.1 关系的定义与性质 ································································ 29__eol__3.1.2 关系模式 ············································································ 31__eol__3.1.3 关系数据库 ········································································· 31__eol__3.2 关系操作 ····················································································· 31__eol__3.2.1 基本的关系操作 ··································································· 31__eol__3.2.2 关系数据语言的分类 ····························································· 32__eol__3.3 关系的完整性 ··············································································· 32__eol__3.3.1 实体完整性 ········································································· 32__eol__3.3.2 参照完整性 ········································································· 32__eol__3.3.3 用户定义的完整性 ································································ 33__eol__3.4 关系代数 ····················································································· 34__eol__3.4.1 传统的集合运算 ··································································· 34__eol__3.4.2 专门的关系运算 ··································································· 35__eol__习题 ·································································································· 42__eol__第4 章 关系数据库标准语言SQL ······································································ 43__eol