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Jingdong book

SQL必知必会第4版

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Jingdong book

SQL必知必会第4版

Name: SQL必知必会 第4版
Brand: Jingdong book
SKU: 3118167391
Price: 24.56 USD
Availability: OutOfStock

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Editer Recommend

SQL经典畅销书，内容丰富，简洁实用
麻省理工学院、伊利诺伊大学等众多大学的参考教材

Content Description

SQL是使用广泛的数据库语言，几乎所有重要的DBMS都支持SQL。《图灵程序设计丛书：SQL必知必会（第4版）》由浅入深地讲解了SQL的基本概念和语法，涉及数据的排序、过滤和分组，以及表、视图、联结、子查询、游标、存储过程和触发器等内容，实例丰富，便于查阅。新版增加了针对ApacheOpenOfficeBase、MariaDB、SQlite等DBMS的描述，并根据新版本的Oracle、SQLServer、MySQL和PostgreSQL更新了相关示例。
《图灵程序设计丛书：SQL必知必会（第4版）》适合SQL初学者，也可供广大开发及管理人员参考。

Author Description

Adobe公司开发者关系部总监，世界知名的技术作家，在计算机产品开发、支持、培训和营销等方面拥有20多年的丰富经验。多年来，他撰写了SQL、MySQL、正则表达式、JSP、WAP和Windows开发等方面的十多部技术图书，其中不少已被翻译为多种语言在世界各地出版发行并成为畅销经典。读者可以通过他的个人网站forta.com了解更多信息。

Comments

“书是传道授业解惑的工具，重要的是能讲明白知识点，而不是篇幅有多厚……学校图书馆里的这本书，封皮都被翻烂了，受欢迎程度可见一斑。”
——读者对本书第3版的评论

Catalogue

第1课了解SQL
1.1 数据库基础
1.2 什么是SQL
1.3 动手实践
1.4 小结

第2课检索数据
2.1 SELECT语句
2.2 检索单个列
2.3 检索多个列
2.4 检索所有列
2.5 检索不同的值
2.6 限制结果
2.7 使用注释
2.8 小结

第3课排序检索数据
3.1 排序数据
3.2 按多个列排序
3.3 按列位置排序
3.4 指定排序方向
3.5 小结

第4课过滤数据
4.1 使用WHERE子句
4.2 WHERE子句操作符
4.3 小结

第5课高级数据过滤
5.1 组合WHERE子句
5.2 IN操作符
5.3 NOT操作符
5.4 小结

第6课用通配符进行过滤
6.1 LIKE操作符
6.2 使用通配符的技巧
6.3 小结

第7课创建计算字段
7.1 计算字段
7.2 拼接字段
7.3 执行算术计算
7.4 小结

第8课使用数据处理函数
8.1 函数
8.2 使用函数
8.3 小结

第9课汇总数据
9.1 聚集函数
9.2 聚集不同值
9.3 组合聚集函数
9.4 小结

第10课分组数据
10.1 数据分组
10.2 创建分组
10.3 过滤分组
10.4 分组和排序
10.5 SELECT子句顺序
10.6 小结

第11课使用子查询
11.1 子查询
11.2 利用子查询进行过滤
11.3 作为计算字段使用子查询
11.4 小结

第12课联结表
12.1 联结
12.2 创建联结
12.3 小结

第13课创建高级联结
13.1 使用表别名
13.2 使用不同类型的联结
13.3 使用带聚集函数的联结
13.4 使用联结和联结条件
13.5 小结

第14课组合查询
14.1 组合查询
14.2 创建组合查询
14.3 小结

第15课插入数据
15.1 数据插入
15.2 从一个表复制到另一个表
15.3 小结

第16课更新和删除数据
16.1 更新数据
16.2 删除数据
16.3 更新和删除的指导原则
16.4 小结

第17课创建和操纵表
17.1 创建表
17.2 更新表
17.3 删除表
17.4 重命名表
17.5 小结

第18课使用视图
18.1 视图
18.2 创建视图
18.3 小结

第19课使用存储过程
19.1 存储过程
19.2 为什么要使用存储过程
19.3 执行存储过程
19.4 创建存储过程
19.5 小结

第20课管理事务处理
20.1 事务处理
20.2 控制事务处理
20.3 小结

第21课使用游标
21.1 游标
21.2 使用游标
21.3 小结

第22课高级SQL特性
22.1 约束
22.2 索引
22.3 触发器
22.4 数据库安全
22.5 小结

附录A 样例表脚本
附录B 流行的应用程序
附录C SQL语句的语法
附录D SQL数据类型
附录E SQL保留字
常用SQL语句速查
索引

Book Abstract

（3）在Orders表添加一行，它与顾客ID相关联；
（4）检索Orders表中赋予的新订单ID；
（5）为订购的每个物品在OrderItems表中添加一行，通过检索出来的ID把它与Orders表关联（并且通过产品Ⅲ与Products表关联）。
现在假设由于某种数据库故障（如超出磁盘空间、安全限制、表锁等），这个过程无法完成。数据库中的数据会出现什么情况？
如果故障发生在添加顾客之后，添加Orders表之前，则不会有什么问题。某些顾客没有订单是完全合法的。重新执行此过程时，所插入的顾客记录将被检索和使用。可以有效地从出故障的地方开始执行此过程。
但是，如果故障发生在插入Orders行之后，添加OrderItems行之前，怎么办？现在，数据库中有一个空订单。
更糟的是，如果系统在添加OrderItems行之时出现故障，怎么办？结果是数据库中存在不完整的订单，而你还不知道。
如何解决这种问题？这就需要使用事务处理了。事务处理是一种机制，用来管理必须成批执行的SQL操作，保证数据库不包含不完整的操作结果。利用事务处理，可以保证一组操作不会中途停止，它们要么完全执行，要么完全不执行（除非明确指示）。如果没有错误发生，整组语句提交给（写到）数据库表；如果发生错误，则进行回退（撤销），将数据库恢复到某个已知且安全的状态。
再看这个例子，这次我们说明这一过程是如何工作的：
（1）检查数据库中是否存在相应的顾客，如果不存在，添加他；
（2）提交顾客信息；
（4）在Orders表中添加一行；
（5）如果向Orders表添加行时出现故障，回退；
（6）检索Orders表中赋予的新订单ID；
（7）对于订购的每项物品，添加新行到OrderItems表；
（8）如果向OrderItems添加行时出现故障，回退所有添加的OrderItems行和Orders行。
在使用事务处理时，有几个反复出现的关键词。下面是关于事务处理需要知道的几个术语：
事务（transaction）指一组SQL语句；
回退（rollback）指撤销指定SQL语句的过程；
提交（commit）指将未存储的SQL语句结果写入数据库表；
保留点（savepoint）指事务处理中设置的临时占位符（placeholder），可以对它发布回退（与回退整个事务处理不同）。
……

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SQL必知必会 第4版

SQL必知必会第4版