[数据库]-mysql-windows安装mysql8

windows安装mysql8

1.官网下载mysql8

https://dev.mysql.com/downloads/mysql/

下载好后，解压好的路径：D:\Program Files\mysql8

2.安装

• 在mysql8目录下新建my.ini文件:

输入以下内容，记得修改basedir和datadir文件夹的路径:

[mysqld] 
#设置3306端口 
port = 3306
# 设置mysql的安装目录 
basedir=D:\\Program Files\\mysql8 
# 设置mysql数据库的数据的存放目录
datadir=D:\\Program Files\\mysql8\\data
# 允许最大连接数
max_connections=200 
# 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
# 默认使用“mysql_native_password”插件认证
#mysql_native_password
default_authentication_plugin=mysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set=utf8

• 初始化和安装mysql

命令一：

cd D:\Program Files\mysql8\bin

命令二：

mysqld --initialize --console

会生成一下 内容,root@localhost: sotUH2/,p!np ,

sotUH2/,p!np就是密码了,待会登录输入密码就是它

D:\Program Files\mysql8\bin>mysqld --initialize --console
2020-11-02T11:41:11.250462Z 0 [System] [MY-013169] [Server] D:\Program Files\mysql8\bin\mysqld.exe (mysqld 8.0.12) initializing of server in progress as process 2312
2020-11-02T11:41:13.345717Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: sotUH2/,p!np
2020-11-02T11:41:14.389947Z 0 [System] [MY-013170] [Server] D:\Program Files\mysql8\bin\mysqld.exe (mysqld 8.0.12) initializing of server has completed

命令三：

安装mysal

mysqld -install mysql

登录改密码

net stop mysql
net start mysql

• 输入mysql -u root -p登录,以及上面的密码

D:\Program Files\mysql8\bin>mysql -u root -p
Enter password: ************
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.12

修改密码：

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';