Centos 7 官网下载安装mysql server 5.6

Centos 7 官网下载安装 mysql server
# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

# rpm -ivh mysql-community-release-el7-5.noarch.rpm
# yum install mysql-community-server

安装成功后重启mysql服务。

# service mysqld restart

初次安装mysql，root账户没有密码。

[root@yl-web yl]# mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.42 MySQL Community Server (GPL)

Copyright (c) 2000, 2018, 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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| |
+--------------------+
3 rows in set (0.01 sec)

mysql> 

设置密码

mysql> set password for 'root'@'localhost' =password('mypassword');
Query OK, 0 rows affected (0.00 sec)

mysql> 

不需要重启数据库即可生效。

在mysql安装过程中如下内容：

​

 已安装:
  mysql-community-libs.x86_64 0:5.6.42-2.el7                                       
  mysql-community-server.x86_64 0:5.6.42-2.el7                                     

作为依赖被安装:
  mysql-community-client.x86_64 0:5.6.42-2.el7                                     
  mysql-community-common.x86_64 0:5.6.42-2.el7                                     
  net-tools.x86_64 0:2.0-0.24.20131004git.el7                                      
  perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7                                     
  perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7                                      
  perl-DBI.x86_64 0:1.627-4.el7                                                    
  perl-Data-Dumper.x86_64 0:2.145-3.el7                                            
  perl-IO-Compress.noarch 0:2.061-2.el7                                            
  perl-Net-Daemon.noarch 0:0.48-5.el7                                              
  perl-PlRPC.noarch 0:0.2020-14.el7                                                

替代:
  mariadb-libs.x86_64 1:5.5.60-1.el7_5    

所以安装完以后mariadb自动就被替换了，将不再生效。

[root@yl-web yl]# rpm -qa |grep mariadb
[root@yl-web yl]# 

REF: https://www.cnblogs.com/starof/p/4680083.html