Install MySQL under CENTOS7

I have a Linux dish, only learn and record the memo here

First, the installation is divided into three steps:
1, wget-i-C http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
2, yum-y install mysql57-community-release-el7-10.noarch.rpm
3, yum-y install Mysql-community-server
CENTOS7 installed in the default MARIADB, is a branch of MySQL, I am now directly installed MySQL here, will cover the mariadb (forgive me not to delve into the mariadb is what things)

Second, the configuration:
1. Start: Systemctl start  Mysqld.service
2. Check the running status: Systemctl status Mysqld.service
At this point, MySQL is running normally (this command can see the word like active (running))
3. Find the default login password:

/ var / Log /mysqld. Log

4. Log in with the default password: mysql-uroot-p, then enter the password you found in the previous step
5. Modify the default password:

ALTER USER ' Root '@'localhost'by'new password' ;

Note that the MySQL keyword (alter, user, and so on) is case insensitive, and be careful not to forget the semicolon behind it. I reset the password anyway is once passed the case that the password strength is not enough.
6. Delete the previously downloaded Yum repositry:yum-y remove Mysql57-community-release-el7-10.noarch (actually this step I do not understand, it is said that if not deleted, every time after the Yum operation will update this thing, the use of resources, then delete it)

At this point, complete.

For more details, please see https://www.cnblogs.com/bigbrotherer/p/7241845.html

Install MySQL under CENTOS7