centos7 mysql数据库安装和配置

2、方法二：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 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
ae56
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>

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：

Installed:
  mysql-community-client.x86_64 0:5.6.26-2.el7                mysql-community-devel.x86_64 0:5.6.26-2.el7                
  mysql-community-libs.x86_64 0:5.6.26-2.el7                  mysql-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_0          mariadb-devel.x86_64 1:5.5.41-2.el7_0   mariadb-libs.x86_64 1:5.5.41-2.el7_0  
  mariadb-server.x86_64 1:5.5.41-2.el7_0 

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]#

三、配置mysql

1、编码

mysql配置文件为/etc/my.cnf

最后加上编码配置

[mysql]
default-character-set =utf8  #此处跟作者有出入，本机有问题,加上去之后下次启动不了，删掉可以正常启动

这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。

2、远程连接设置

把在所有数据库的所有表的所有权限赋值给位于所有IP地址的root用户。

mysql> grant all privileges on *.* to root@'%'identified by 'password';

如果是新用户而不是root，则要先新建用户

mysql>create user 'username'@'%' identified by 'password';

此时就可以进行远程连接了。

 

本文作者starof,因知识本身在变化，作者也在不断学习成长，文章内容也不定时更新，为避免误导读者，方便追根溯源，请诸位转载注明出处：http://www.cnblogs.com/starof/p/4680083.html有问题欢迎与我讨论，共同进步。