零基础轻松学MySQL 5.7

前 言
第1章 数据库概述 ·····································1
1.1 数据库基本概念 ·······························1
1.1.1 数据存储方式 ·······························1
1.1.2 什么是数据库 ············································2
1.1.3 数据库的存储结构 ····································2
1.1.4 数据库在开发中的作用 ···········································4
1.2 数据库技术 ··············································4
1.2.1 数据库系统 ·······························4
1.2.2 了解SQL语言 ·······································6
1.2.3 数据库访问技术 ···············································6
1.3 认识MySQL ···············································7
1.3.1 MySQL的优势 ······································7
1.3.2 MySQL的版本 ······································8
1.3.3 如何获取MySQL ···········································8
1.4 数据库的学习方法 ···········································10
1.5 小结 ·········································11
1.6 练习题 ·····································11
第2章 安装和配置MySQL ·········································12
2.1 MySQL 5.7的新特性 ·······································12
2.2 在不同平台上安装MySQL ·····································13
2.2.1 安装条件 ··············································13
2.2.2 在Windows系统上安装MySQL ········································13
2.2.3 在Linux系统上安装MySQL ································17
2.2.4 打开MySQL数据库 ··············································20
2.3 验证MySQL是否安装成功 ············································21
2.3.1 获取服务器状态 ············································22
2.3.2 执行简单的SQL 命令 ············································22
2.4 启动服务和登录MySQL 数据库 ·······································22
2.4.1 启动MySQL 服务 ··············································22
2.4.2 登录MySQL 数据库 ··············································23
2.4.3 配置Path 变量 ·····································25
2.5 配置MySQL 数据库 ········································26
2.5.1 使用配置向导 ······································26
2.5.2 手工更改配置 ······································30
2.6 使用MySQL Workbench 图形管理工具·····································30
2.7 使用免安装的MySQL ·····································31
2.8 小结 ·········································33
2.9 练习题 ·····································33
第3 章 操作MySQL 数据库 ········································ 34
3.1 创建数据库 ································34
3.1.1 基本语法 ··············································34
3.1.2 创建并查看数据库 ·······································35
3.1.3 创建指定字符集的数据库 ·····································36
3.2 修改数据库 ··········································37
3.2.1 基本语法 ··············································37
3.2.2 修改数据库的字符集 ·············································38
3.3 删除数据库 ·············································38
3.3.1 基本语法 ··············································38
3.3.2 删除数据库 ··········································39
3.4 选择数据库 ···········································40
3.5 使用图形界面管理数据库 ·····································40
3.6 综合案例 ·······························43
3.6.1 案例目的 ··············································43
3.6.2 案例演示过程 ······································44
3.7 小结 ·········································46
3.8 练习题 ·····································46
第4 章 MySQL 存储引擎与数据类型 ········································· 47
4.1 存储引擎 ·······························47
4.1.1 什么是存储引擎 ·········································47
4.1.2 MySQL 5.7 支持的存储引擎 ·································48
4.1.3 如何选择存储引擎 ··············································48
4.1.4 操作默认存储引擎 ·············································49
4.2 数据类型 ·······························49
4.2.1 整数类型 ··············································50
4.2.2 浮点数类型和定点数类型 ·····································51
4.2.3 日期与时间类型 ········································52
4.2.4 字符串和二进制类型 ··········································55
4.3 综合案例 ·······························59
4.3.1 案例目的 ··············································59
4.3.2 案例演示过程 ······································59
4.4 小结 ·········································60
4.5 练习题 ·····································60
第5 章 操 作 表 ········································ 62
5.1 表的基本概念 ··································62
5.2 创建表 ·····································62
5.2.1 基本语法 ··············································62
5.2.2 在指定的数据库中创建表 ·····································63
5.2.3 查看表结构 ··········································64
5.3 修改表 ·····································65
5.3.1 基本语法 ··············································66
5.3.2 添加字段 ··············································66
5.3.3 修改字段数据类型 ································67
5.3.4 删除字段 ··············································68
5.3.5 修改字段名称 ······································69
5.3.6 修改表名 ··············································69
5.4 删除表 ·····································70
5.4.1 基本语法 ··············································70
5.4.2 删除表 ·································70
5.5 使用图形界面操作数据表 ·································71
5.6 综合案例 ·······························75
5.6.1 案例目的 ··············································75
5.6.2 案例演示过程 ······································75
5.7 小结 ········································79
5.8 练习题 ·····································79
第6 章 约 束 ··········································· 80
6.1 约束的作用 ······································80
6.2 主键约束 ·······························80
6.2.1 选取设置主键约束的字段 ·····································80
6.2.2 在创建表时设置主键约束 ·····································81
6.2.3 在创建表时设置复合主键 ·····································82
6.2.4 在修改表时添加主键约束 ·····································83
6.2.5 使用图形界面操作主键约束 ·································83
6.3 外键约束 ·······························84
6.3.1 选取设置外键约束的字段 ·····································84
6.3.2 在创建表时设置外键约束 ·····································85
6.3.3 在修改表时添加外键约束 ·····································86
6.3.4 删除外键约束 ······································87
6.3.5 使用图形界面操作外键约束 ·································88
6.4 唯一约束 ·······························89
6.4.1 选取设置唯一约束的字段 ·····································89
6.4.2 在创建表时设置唯一约束 ·····································89
6.4.3 在修改表时添加唯一约束 ·····································90
6.4.4 删除唯一约束 ······································90
6.4.5 使用图形界面操作唯一约束 ·································91
6.5 检查约束 ·······························91
6.5.1 选取设置检查约束的字段 ·····································91
6.5.2 在创建表时设置检查约束 ·····································92
6.5.3 在修改表时添加检查约束 ·····································92
6.5.4 删除检查约束 ······································93
6.5.5 使用图形界面操作检查约束 ·································93
6.6 默认值约束 ······································93
6.6.1 选取设置默认值约束的字段 ·································93
6.6.2 在创建表时设置默认值约束 ·································93
6.6.3 在修改表时添加默认值约束 ·································94
6.6.4 删除默认值约束 ····································94
6.6.5 使用图形界面操作默认值约束 ········································95
6.7 非空约束 ·······························95
6.7.1 选取设置非空约束的字段 ·····································95
6.7.2 在创建表时设置非空约束 ·····································95
6.7.3 在修改表时添加非空约束 ·····································96
6.7.4 删除非空约束 ······································97
6.7.5 使用图形界面操作非空约束 ·································97
6.8 查看表中的约束 ···············································98
6.9 综合案例 ·······························98
6.9.1 案例目的 ··············································98
6.9.2 案例演示过程 ······································99
6.10 小结 ·····································100
6.11 练习题 ·······························100
第7 章 函 数 ········································· 102
7.1 数值型函数 ····································102
7.1.1 ABS 函数 ············································102
7.1.2 MOD 函数 ··········································103
7.1.3 SQRT 函数 ·········································103
7.1.4 SIGN 函数 ··········································103
7.1.5 CEIL 与CELING 函数 ·········································104
7.1.6 三角函数 ············································104
7.2 字符串函数 ····································106
7.2.1 LENGTH 函数 ·····································106
7.2.2 UPPER 与LOWER 函数 ······································107
7.2.3 LEFT 与RIGHT 函数 ···········································107
7.2.4 CONCAT 函数 ·····································108
7.2.5 TRIM 函数 ·········································108
7.2.6 INSERT 函数 ······································109
7.2.7 SUBSTRING 函数 ·······························109
7.2.8 REVERSE 函数 ····································110
7.2.9 REPLACE 函数 ····································110
7.3 日期与时间函数 ·············································111
7.3.1 NOW 和SYSDATE 函数 ·····································111
7.3.2 CURDATE 函数和CURRENT_DATE 函数 ·································111
7.3.3 CURTIME 函数和CURRENT_TIME 函数 ··································112
7.3.4 DAYOFWEEK 函数和WEEKDAY 函数 ·······································112
7.3.5 DAYOFMONTH 函数和DAYOFYEAR 函数 ······································113
7.3.6 MONTH 函数和MONTHNAME 函数 ········································113
7.3.7 DATEDIFF 函数···································114
7.3.8 ADDDATE 函数 ···································114
7.3.9 DATE_FORMAT 函数 ··········································115
7.4 聚合函数 ········································116
7.4.1 MAX 函数 ··········································116
7.4.2 MIN 函数 ············································117
7.4.3 COUNT 函数 ······································118
7.4.4 SUM 函数 ···········································118
7.4.5 AVG 函数 ···········································119
7.5 综合案例 ········································119
7.5.1 案例目的 ············································119
7.5.2 案例演示过程 ······································120
7.6 小结 ·······································121
7.7 练习题 ·································121
第8 章 使用基本的查询语句 ····································· 122
8.1 查询语句基础 ································122
8.1.1 基本语法 ············································122
8.1.2 使用“*”查询表中的全部内容 ····································123
8.1.3 查询表中指定的字段 ···········································124
8.1.4 使用DISTINCT 关键字去除结果中的重复行 ································126
8.1.5 在查询时给表和字段设置别名 ······································127
8.1.6 使用LIMIT 关键字指定查询结果的行数 ····································128
8.1.7 使用ORDER BY 对查询结果进行排序 ······································130
8.2 带WHERE 关键字的条件查询 ········································132
8.2.1 常用的运算符 ······································132
8.2.2 单一条件的查询语句 ···········································138
8.2.3 多条件的查询语句 ··············································138
8.2.4 使用LIKE 的模糊查询 ········································139
8.2.5 日期字段作为条件的查询语句 ······································141
8.3 综合案例 ········································141
8.3.1 案例目的 ············································141
8.3.2 案例演示过程 ······································142
8.4 小结 ·······································145
8.5 练习题 ·································145
第9 章 高级查询 ······································ 146
9.1 多表查询 ········································146
9.1.1 内连接查询 ········································147
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