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mysql 8.0.17 installation tutorial

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Release: 2020-05-11 09:46:56
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mysql 8.0.17 installation tutorial

mysql 8.0.17安装教程

mysql 8.0.17 解压版安装教程

推荐:《mysql教程

记录一下自己安装过程遇到的问题,也希望对大家有用~

1、下载(官方推荐的是下载安装版本,但是解压版更便捷),下载地址:

mysql 8.0.17 installation tutorial

2、解压,我们需要增加一步操作:

(1)创建一个名为my.ini的文件:

mysql 8.0.17 installation tutorial

 

3、修改my.ini文件:

[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[mysqld]
# 设置3306端口
port = 3306
# 设置mysql的安装目录
basedir = D:\\Program Files\\mysql\\
# 设置mysql数据库的数据的存放目录
datadir = D:\\Program Files\\mysql\\data
# 允许最大连接数
max_connections=20
# 服务端使用的字符集默认为8比特编码的latin1字符集
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# 创建模式
sql_mode = NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
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特别要注意:

(1)D:\\Program Files\\mysql\\data 这个目录一定要是“\\”,千万别弄成“\”不然会报错,或者可以用“/”;

(2)Mysq安装目录和数据存放目录一定要修改为你自己设定的目录,除非你设置的目录与上述一致。

4、配置mysql的环境变量:

MYSQL_HOME
D:\Program Files\mysql
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mysql 8.0.17 installation tutorial

点击Path,增加:

%MYSQL_HOME%\bin;
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mysql 8.0.17 installation tutorial

5、以管理员身份运行cmd,执行以下操作:

(1)切换到mysql的bin目录;

(2)执行mysqld --initialize命令,此时会生成一个新目录data,查看.err文件,可以看到root用户生成的随机密码;

mysqld --initialize
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mysql 8.0.17 installation tutorial

(3)执行mysqld --install命令,安装mysqld服务;

mysqld --install
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(4)执行net start mysql命令,启动mysql服务;

net start mysql
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(5)执行mysql -u root -p命令,连接mysql数据库,输入上述随机生成的密码;

mysql -u root -p
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mysql 8.0.17 installation tutorial

(6)执行以下sql重置root密码:

mysql> alter user 'root'@'localhost' identified with mysql_native_password by '新密码';

tips:

mysqld –initialize-insecure自动生成无密码的root用户;

mysqld –initialize自动生成带随机密码的root用户;

mysqld -remove移除自己的mysqld服务;

net stop mysql命令,停止mysql服务

如果报错,清空data文件夹,最好还是删掉data文件,重新执行remove--initialize--install--start(这些不是命令)流程即可;

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