win 10 下面安装 mysql-8.0.12-winx64 的过程

win10 上面如何安装多个 MySQL8

1.官网下载 MySQL Community Downloads

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

2.解压到你要安装的目录

3.在MySQL的根目录下面新建my.ini的配置文件

[mysqld]
# 设置3306端口
port=3306
# 设置mysql的安装目录(需要设置为自己的安装目录)
basedir=D:\Programming\MySQL8\MySQL1\mysql-8.0.18-winx64
# 设置mysql数据库的数据的存放目录(mysql-8.0.18不需要手动创建data文件夹)
datadir=D:\Programming\MySQL8\MySQL1\mysql-8.0.18-winx64\data
# 允许最大连接数
max_connections=200
# 允许连接失败的次数(这是为了防止有人从该主机试图攻击数据库系统)
max_connect_errors=10
# 服务端使用的字符集默认为utf8mb4
character-set-server=utf8mb4
# 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
default_authentication_plugin=mysql_native_password
# 去掉sql_mode中的only_full_group_by
sql_mode=strict_trans_tables,no_zero_in_date,no_zero_date,error_for_division_by_zero,no_engine_substitution
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8mb4
[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=utf8mb4

4.通过管理员的身份打开cmd窗口跳转路径到MySQL的bin目录

# 进入到mysql的bin目录底下操作:
# 初始化mysql
mysqld --defaults-file=D:\Programming\MySQL8\MySQL1\mysql-8.0.18-winx64\my.ini --initialize --console

# 安装mysql服务
mysqld --install [服务名] MySQL1 --defaults-file=D:\Programming\MySQL8\MySQL1\mysql-8.0.18-winx64\my.ini
mysqld --install MySQL1 --defaults-file=D:\Programming\MySQL8\MySQL1\mysql-8.0.18-winx64\my.ini

# 启动mysql服务
net start [服务名]
net start mysql1

# 停止mysql服务
net stop [服务名]
net stop mysql1

# 卸载mysql服务
mysqld -remove [服务名]
mysqld --remove mysql1

# 登录mysql
mysql -h localhost -u root -P 3306 -p

# 修改mysql密码
alter user 'root'@'localhost' identified with mysql_native_password by '123456';

flush privileges;

# 开启mysql远程访问
# 方式一：
use mysql;

create user 'root'@'%' identified by '123456';

grant all on *.* to 'root'@'%';

alter user 'root'@'%' identified with mysql_native_password by '123456';

flush privileges;

# 方式二:
use mysql;

select user,authentication_string,host from user;

update user set host = '%' where user = 'root';

flush privileges;

alter user 'root'@'%' identified with mysql_native_password by '123456';

5.其他

MySQL2安装步骤

D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\bin>mysqld --defaults-file=D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\my.ini --initialize --console
2019-11-06T13:19:04.091682Z 0 [System] [MY-013169] [Server] D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\bin\mysqld.exe (mysqld 8.0.18) initializing of server in progress as process 3276
2019-11-06T13:19:07.073501Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: X>cZPPE6Qkpi

D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\bin>mysqld --install MySQL2 --defaults-file=D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\my.ini
Service successfully installed.

D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\bin>net start mysql2
MySQL2 服务正在启动 .
MySQL2 服务已经启动成功。

D:\Programming\MySQL8\MySQL2\mysql-8.0.18-winx64\bin>mysql -h localhost -u root -P 3307 -p
Enter password: ************
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.18

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> use mysql;
Database changed
mysql> create user 'root'@'%' identified by '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> grant all on *.* to 'root'@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> alter user 'root'@'%' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql>

MySQL3安装步骤

D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\bin>mysqld --defaults-file=D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\my.ini --initialize --console
2019-11-06T13:22:41.619497Z 0 [System] [MY-013169] [Server] D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\bin\mysqld.exe (mysqld 8.0.18) initializing of server in progress as process 3956
2019-11-06T13:22:44.022580Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: dF-++?wor5oH

D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\bin>mysqld --install MySQL3 --defaults-file=D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\my.ini
Service successfully installed.

D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\bin>net start mysql3
MySQL3 服务正在启动 .
MySQL3 服务已经启动成功。

D:\Programming\MySQL8\MySQL3\mysql-8.0.18-winx64\bin>mysql -h localhost -u root -P 3308 -p
Enter password: ************
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.18

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> use mysql;
Database changed
mysql> create user 'root'@'%' identified by '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> grant all on *.* to 'root'@'%';
Query OK, 0 rows affected (0.01 sec)

mysql> alter user 'root'@'%' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql>