《数据库系统概论》| 第一章绪论知识梳理

- 日理万妓 2023-10-06 11:43 1阅读 0赞

> ## 绪论 ##

**目录**

1.1数据库概述

1.2 数据模型

1.2.2 概念模型

1.2.3 数据模型的组成要素

1.3.2 数据库系统的三级模式结构

1.4 数据库系统的组成

--------------------

### 1.1数据库概述 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 2][]

###  ###

### 1.2 数据模型 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 3][]

#### 1.2.2 概念模型 ####

![20190112221358956.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 4][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 6][]

#### 1.2.3 数据模型的组成要素 ####

![20190112221644431.png][]

#### 1.3.2 数据库系统的三级模式结构 ####

![2019011300174179.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 7][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 9][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 10][]

![20190113002242947.png][]

![20190113002345602.png][]

![20190113002510896.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 11][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 12][]

![20190113002811125.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 13][]

![20190113002958837.png][]

### 1.4 数据库系统的组成 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 14][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190112220750988.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20190112220915579.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20190112221003841.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20190112221051944.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[20190112221358956.png]: https://img-blog.csdnimg.cn/20190112221358956.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20190112221256275.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 5]: https://img-blog.csdnimg.cn/201901122214425.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 6]: https://img-blog.csdnimg.cn/2019011222154334.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[20190112221644431.png]: https://img-blog.csdnimg.cn/20190112221644431.png
[2019011300174179.png]: https://img-blog.csdnimg.cn/2019011300174179.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 7]: https://img-blog.csdnimg.cn/20190113001706290.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 8]: https://img-blog.csdnimg.cn/20190113001820423.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 9]: https://img-blog.csdnimg.cn/20190113002022465.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 10]: https://img-blog.csdnimg.cn/2019011300213293.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[20190113002242947.png]: https://img-blog.csdnimg.cn/20190113002242947.png
[20190113002345602.png]: https://img-blog.csdnimg.cn/20190113002345602.png
[20190113002510896.png]: https://img-blog.csdnimg.cn/20190113002510896.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 11]: https://img-blog.csdnimg.cn/20190113002645877.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 12]: https://img-blog.csdnimg.cn/201901130027197.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[20190113002811125.png]: https://img-blog.csdnimg.cn/20190113002811125.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 13]: https://img-blog.csdnimg.cn/20190113002917261.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70
[20190113002958837.png]: https://img-blog.csdnimg.cn/20190113002958837.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2_size_16_color_FFFFFF_t_70 14]: https://img-blog.csdnimg.cn/2019011300324158.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTIzMDk2,size_16,color_FFFFFF,t_70