CentOS 7 offline installation of MySql

Install MySql on CentOS 7

CentOS 7 no longer comes with Mysql database, the default database is MariaDB ( a branch of Mysql ).

Before installing MySQL , uninstall the mariadb that comes with the system

The installation package can be downloaded from my resources

2.1 Query Mysql and Mariadb

# find / -name mysql     Find files and folders with mysql name

# rpm -qa|grep mysql Find out if MySQL is installed ( case sensitive )  

# rpm -qa|grep -i mysql     Find out if MySQL is installed ( case insensitive )

# rpm -qa | grep mariadb

result mariadb-libs-5.5.44-2.el7.centos.x86_64

 

2.2 Uninstall

uninstall mysql

# rpm -e --nodeps mysql-libs-5.1.71-1.el6.x86_64    

卸载 mariadb

# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64

 

2.3 安装

# rpm -ivh MySQL-server-5.5.47-1.linux2.6.x86_64.rpm

如果需要安装 Mysql 时出现下面情况，先安装 mysql 的 libaio 依赖

 

#  rpm - ivh  libaio-0.3.107-10.el6.x86_64.rpm

 

然后再安装服务端的 mysql, 如果安装不上

 

那只能强制安装 — nodeps

# rpm -ivh MySQL-server-5.5.47-1.linux2.6.x86_64.rpm --nodeps

# rpm -ivh MySQL-client-5.5.47-1.linux2.6.x86_64.rpm –nodeps

2.4 查询服务是否开启

# service mysql status      查看 mysql 服务是否开启

2.5 开启服务

# service mysql start

2.6 开机自动启动 mysql 服务

# chkconfig mysql on  

2.6.5 查看所有服务

#  chkconfig –list

 

2. 7 进入 MySql

# mysql -uroot       第一次进入不需要密码

2.8 改密码

# update mysql.user set password=PASSWORD(123456) where User='root';

密码可以是字符串

将 root 用户的密码改为 root ，这样只能本地登录，远程不能登录

2 .8.5 查询用户所拥有的访问权限信息的命令如下：

mysql > select host,user,password from mysql. user ;

 

  2.9 改所有机子访问 root 权限

  # grant all privileges on *.* to 'root'@'%' identified by '123456';

     

2.10 刷新权限

# flush privileges;

2.11 退出 mysql

# exit

 

c reate database ht;

show databases;

use ht;

 

create table tutorials_tbl(

   tutorial_id INT NOT NULL AUTO_INCREMENT,

   tutorial_title VARCHAR(100) NOT NULL,

   tutorial_author VARCHAR(40) NOT NULL,

   submission_date DATE,

   PRIMARY KEY ( tutorial_id )

);

show tables