mysql5.7通过文件zip方式安装-九五小庞

为什么通过zip的方式进行安装

电脑上已安装过mysql数据库，想要再安装一个。

1.下载mysql安装包

直接找到mysql官网，在官网上下载zip安装包。

https://downloads.mysql.com/archives/community/

解压完成后是这个样子的(注意：解压完的文件放到一个合适的地方，不要乱放)

2.在mysql-5.7.38-winx64安装包中创建my.ini文件，创建data文件夹

[mysql]

# 设置mysql客户端默认字符集
default-character-set=utf8 

[mysqld]
#skip-grant-tables
#设置3310端口
port = 3310
#关闭ONLY_FULL_GROUP_BY
sql_mode = 'STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'
# 设置mysql的安装目录
basedir=G:\Program Files\mysql-5.7.37-winx64

# 设置mysql数据库的数据的存放目录
datadir=G:\Program Files\mysql-5.7.37-winx64\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

3.初始化mysql数据库

以管理员身份打开命令行

切换到mysql安装包的目录下

执行 mysqld --initialize初始化, 然后发现data文件夹多了mysql的文件夹,也就意味着数据库正常生成了

4.安装服务

在mysql安装包目录下创建bat文件

@set mysql_service="G:\Program Files\mysql-5.7.37-winx64\bin\mysqld.exe"
::设置服务名
@set service_name="MYSQL57"

::安装服务
%mysql_service% --install %service_name% --defaults-file="G:\Program Files\mysql-5.7.37-winx64\my.ini"

pause

然后以管理员身份运行【安装.bat】

安装成功后，在电脑服务中会有一个MYSQL57服务（注意，如果服务没有启动，需要手动启动一下服务）

5.修改root管理员密码和权限

修改my.ini文件，在[mysqld]节点中加上 skip-grant-tables参数

说明:skip-grant-tables参数的作用是，通过root用户登录数据库，不需要输入密码，直接绕过密码

改完配置后，记得需要重启一下mysql57服务

连接上mysql数据库，进行修改

G:\Program Files\mysql-5.7.37-winx64\bin>mysql -u root -p123456 -P 3310
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.37

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

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> use mysql;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> flush privileges;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> SET PASSWORD = PASSWORD('123456');
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
Query OK, 0 rows affected (0.00 sec)

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

mysql> quit

修改root用户的链接访问权限

G:\Program Files\mysql-5.7.37-winx64\bin>mysql -u root -p123456 -P 3310
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.7.37 MySQL Community Server (GPL)

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

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> use mysql;
Database changed
mysql> select host, user from user;
+-----------+---------------+
| host      | user          |
+-----------+---------------+
| localhost | mysql.session |
| localhost | mysql.sys     |
| localhost | root          |
+-----------+---------------+
3 rows in set (0.00 sec)

mysql> update user set host = '%' where user = 'root'  and host='localhost';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select host, user from user;
+-----------+---------------+
| host      | user          |
+-----------+---------------+
| %         | root          |
| localhost | mysql.session |
| localhost | mysql.sys     |
+-----------+---------------+
3 rows in set (0.00 sec)

mysql> quit
Bye