The first step: get mysql YUM source
Go to the mysql official website to get the RPM package download address
https://dev.mysql.com/downloads/repo/yum/
click to download
Right-click to copy the link address https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
Get this, this is the rpm package of Yum warehouse is actually a download address
Step 2: Download and install mysql source
First download the mysql source installation package
[root@localhost ~]# wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
-bash: wget: command not found
Let's install wget first
yum -y install wget
Then execute wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
Install mysql source
yum -y localinstall mysql57-community-release-el7-11.noarch.rpm
Step 3: Install Mysql online
yum -y install mysql-community-server
You need to wait a little while downloading a lot of things.
Step 4: Start the Mysql service
systemctl start mysqld
Step 5: Set boot up
[root@localhost ~]# systemctl enable mysqld
[root@localhost ~]# systemctl daemon-reload
Step 6: Modify root local login password
After the mysql installation is complete, a temporary default password is generated for root in the /var/log/mysqld.log file.
[root@localhost ~]# vi /var/log/mysqld.log
The temporary password here is eMV.R#mWe3ha
[root@localhost ~]# mysql -u root -p
Enter password:
Enter the temporary password to enter the mysql command line;
mysql> ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘ZhipengWang2012@’;
Query OK, 0 rows affected (0.00 sec)
Change the password to ZhipengWang2012@ (Note that the default password policy of mysql5.7 requires that the password must be a combination of uppercase and lowercase alphanumeric special letters, at least 8 digits)
1QAZ2wsx!@
Step 7: Set to allow remote login
Mysql does not allow remote login by default, we need to set it, and the firewall opens port 3306;
mysql> GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘1QAZ2wsx!@’ WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> exit;
Bye
Exit
[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent
success
[root@localhost ~]# firewall-cmd --reload
success
[root@localhost ~]#
Open port 3306
Step 8: Configure the default encoding as utf8 and host binding
Modify the /etc/my.cnf configuration file and add the encoding configuration under [mysqld], as shown below:
[mysqld]
character_set_server=utf8
init_connect=‘SET NAMES utf8’
bind-address = 0.0.0.0
[root@localhost ~]# vi /etc/my.cnf
After editing and saving, restart the mysql service;
[root@localhost ~]# systemctl restart mysqld
[root@localhost ~]#
Check the code:
mysql> show variables like ‘%character%’;
±-------------------------±---------------------------+
| Variable_name | Value |
±-------------------------±---------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
±-------------------------±---------------------------+
8 rows in set (0.00 sec)
Step 9: Navicat connection
Navicat connect to mysql appeared 2003-can't connect to mysql server on localhost
Change Alibaba Cloud Server = "Network and Security =" Add a security group
Open the 3306 port of mysql, and open up the ports that may be used by the way
Continue to link, still unsuccessful.
Server details = "Security =" firewall and manually add ports such as mysql3306 that need to be opened
The connection is successful and the Mysql installation and configuration is complete;
Common mysql operations
1 View the mysql version
Method 1: status;
Method 2: select version();
2 Mysql start, stop, restart common commands
a, start method
1 使用 service 启动：
[root@localhost /]# service mysqld start (5.0版本是mysqld)
[root@szxdb etc]# service mysql start (5.5.7版本是mysql)
2 使用 mysqld 脚本启动：
/etc/inint.d/mysqld start
3 使用 safe_mysqld 启动：
safe_mysqld&
b, stop
1、使用 service 启动：
service mysqld stop
2、使用 mysqld 脚本启动：
/etc/inint.d/mysqld stop
3、mysqladmin shutdown
c, restart
1、使用 service 启动：
service mysqld restart
service mysql restart (5.5.7版本命令)
2、使用 mysqld 脚本启动：
/etc/init.d/mysqld restart
Two, connect to MySQL:
格式： mysql -h主机地址 -u用户名 -p用户密码
1、例1：连接到本机上的MYSQL
找到mysql的安装目录，一般可以直接键入命令mysql -uroot -p，回车后提示你输密码，如果刚安装好MYSQL，超级用户root是没有密码的，故直接回车即可进入到MYSQL中了，MYSQL的提示符是：mysql>
2、连接到远程主机上的MySQL
假设远程主机的IP为：10.0.0.1，用户名为root,密码为123。则键入以下命令：
mysql -h10.0.0.1 -uroot -p123
（注：u与root可以不用加空格，其它也一样）
3、退出MySQL命令
exit （回车）