CentOS7|CentOS7 MySql数据库安装配置(单实例) CentOS7MySql数据库安装配置(单实

一. 安装mysql-server 官网下载安装

# 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。

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[root@yl-web yl]# mysql -u root Welcome to the MySQL monitor.Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.6.26 MySQL Community Server (GPL)Copyright (c) 2000, 2015, 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 | | test| +--------------------+ 4 rows in set (0.01 sec)mysql>

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设置密码

mysql> set password for 'root'@'localhost' =password('password'); 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：

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Installed:
mysql-community-client.x86_64 0:5.6.26-2.el7mysql-community-devel.x86_64 0:5.6.26-2.el7
mysql-community-libs.x86_64 0:5.6.26-2.el7mysql-community-server.x86_64 0:5.6.26-2.el7

Dependency Installed:
mysql-community-common.x86_64 0:5.6.26-2.el7

Replaced:
mariadb.x86_64 1:5.5.41-2.el7_0mariadb-devel.x86_64 1:5.5.41-2.el7_0mariadb-libs.x86_64 1:5.5.41-2.el7_0
mariadb-server.x86_64 1:5.5.41-2.el7_0

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所以安装完以后mariadb自动就被替换了，将不再生效。