MySQL安装部署：Linux系统中yum安装部署MySQL环境_yum mysql

1、进入MYSQL官网

选择DOWNLOADS

2、进入MYSQL社区版使用仓库方式下载

找到右侧最下方社区版下载

选择第一个Yum Repository

选择对应版本的软件包进行下载

注：这里可以不登录直接下载软件包

3、进入linux系统安装mysql软件包

上传刚下载好的rpm软件包至系统内部，进行安装：

[root@zjx-mysql ~]# rpm -ivh mysql80-community-release-el7-11.noarch.rpm 
warning: mysql80-community-release-el7-11.noarch.rpm: Header V4 RSA/SHA256 Signature, key ID 3a79bd29: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql80-community-release-el7-11 ################################# [100%]

然后安装mysql-server、mysql-devel：

[root@zjx-mysql ~]# yum install mysql-server mysql-devel -y

.........

.........

Installed:
  mysql-community-libs.x86_64 0:8.0.35-1.el7    mysql-community-libs-compat.x86_64 0:8.0.35-1.el7    mysql-community-server.x86_64 0:8.0.35-1.el7   

Dependency Installed:
  mysql-community-client.x86_64 0:8.0.35-1.el7                         mysql-community-client-plugins.x86_64 0:8.0.35-1.el7                        
  mysql-community-common.x86_64 0:8.0.35-1.el7                         mysql-community-icu-data-files.x86_64 0:8.0.35-1.el7                        

Replaced:
  mariadb-libs.x86_64 1:5.5.68-1.el7                                                                                                                

Complete!

安装完成后可以看下所有的安装包：

[root@zjx-mysql ~]# rpm -qa | grep mysql
mysql80-community-release-el7-11.noarch
mysql-community-common-8.0.35-1.el7.x86_64
mysql-community-icu-data-files-8.0.35-1.el7.x86_64
mysql-community-client-plugins-8.0.35-1.el7.x86_64
mysql-community-client-8.0.35-1.el7.x86_64
mysql-community-server-8.0.35-1.el7.x86_64
mysql-community-devel-8.0.35-1.el7.x86_64
mysql-community-libs-8.0.35-1.el7.x86_64
mysql-community-libs-compat-8.0.35-1.el7.x86_64

4、启动MYSQL

[root@zjx-mysql ~]# systemctl start mysqld

[root@zjx-mysql ~]# systemctl status mysqld
● mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: active (running) since Sat 2023-12-02 04:30:13 EST; 6s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 6772 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 6910 (mysqld)
   Status: "Server is operational"
   CGroup: /system.slice/mysqld.service
           └─6910 /usr/sbin/mysqld

Dec 02 04:29:54 zjx-mysql systemd[1]: Starting MySQL Server...
Dec 02 04:30:13 zjx-mysql systemd[1]: Started MySQL Server.
显示服务正常运行就表示sql服务已经成功启动了，下面就可以正常使用mysql了

5、登录使用MYSQL

登录之前可以查询下默认的MYSQL密码（即root@localhost:后的字符内容）：

[root@zjx-mysql ~]# sudo grep 'temporary password' /var/log/mysqld.log 
2023-12-02T09:30:03.818075Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: uw(g!;Mp;6I=

这时候就可以登录MYSQL了
[root@zjx-mysql ~]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.35

Copyright (c) 2000, 2023, 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.

但是进行查看数据库等操作会报错（因为需要我们修改密码）

mysql> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

修改密码

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '修改后的密码';
Query OK, 0 rows affected (0.07 sec)

此时可正常进行查看数据库等相关操作

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.01 sec)

mysql>