Linux(CentOS)环境下安装MySQL

本机需要连接互联网(后面实例是以在线安装为例）

1、 在MySQL官网下载yum安装源( 保存到CentOS7.0系统路径(桌面\Software ))
https://dev.mysql.com/downloads/repo/yum/
下载名称:

Red Hat Enterprise Linux 7 / Oracle Linux 7 (Architecture Independent), RPM Package	1.      9.0K	2.      Download
(mysql57-community-release-el7-9.noarch.rpm)

2、 添加下载的yum源(可用命令localinstall/install)，进入文件夹Software，输入以下命令

[root@localhost Software]# yum install -ymysql57-community-release-el7-9.noarch.rpm

3、 安装MySQL(检查启用可安装程序组件)

[root@localhost Software]# yum repolist all | grep mysql
[root@localhost Software]# yum install -y  mysql-community-server

4、 启动MySQL服务

[root@localhost Software]# service mysqld start

5、 查看root临时密码(右健上面复制密码“9j6srtfRp>;D”)

[root@localhost Software]# grep "password"/var/log/mysqld.log

2017-02-05T09:22:20.086699Z 1 [Note] A temporary passwordis generated for root@localhost: 9j6srtfRp>;D

6、 测试连接

5.1、连接MySQL(输入密码直接右健粘贴，回车健确认)

[root@localhostSoftware]# mysql -u root -p

Enter password: 9j6srtfRp>;D

5.2、测试连接效果

以下提示需要重置密码才能操作

mysql>show databases
    -> ;
ERROR 1820 (HY000): You must reset your password usingALTER USER statement before executing this statement.
mysql>set password for 'root'@'localhost'=password('输入root新密码');
Query OK,0 rows affected, 1 warning (0.00 sec)
 
mysql>use mysql;
Readingtable information for completion of table and column names
You canturn off this feature to get a quicker startup with -A
 
Databasechanged
mysql>show databases;
+--------------------+
|Database           |
+--------------------+
|information_schema |
|mysql              |
|performance_schema |
|sys                |
+--------------------+
4 rows in set (0.00 sec)

--以上为测试成功连接效果