Centos7.0下MySQL的安裝

1.下載mysql的repo源

$ wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

2.安裝mysql-community-release-el7-5.noarch.rpm包

$ sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm

安裝這個包後，會得到兩個mysql的yum repo源：/etc/yum.repos.d/mysql-community.repo，/etc/yum.repos.d/mysql-community-source.repo。

3.安裝mysql

$ sudo yum install mysql-server

根據提示安裝就能夠了,不過安裝完成後沒有密碼,須要重置密碼

4.重置mysql密碼

$ mysql -u root

登陸時有可能報這樣的錯：ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘ (2)，緣由是/var/lib/mysql的訪問權限問題。下面的命令把/var/lib/mysql的擁有者改成當前用戶：

$ sudo chown -R root:root /var/lib/mysql

重啓mysql服務

$ service mysqld restart

接下來登陸重置密碼：

$ mysql -u root  //直接回車進入mysql控制檯
mysql > use mysql;
mysql > update user set password=password('123456') where user='root';
mysql > FLUSH PRIVILEGES;

 

若是mysql -u root遇到/var/lib/mysql/mysql.sock錯誤的時候

ln -s /tmp/mysql.sock /var/lib/mysql/mysql.sock 

 

遠程使用workbench登陸MySQL

mysql -u root -p #登陸MySQL
use mysql;        #庫
select host,user,password from user; #表中存放的是有訪問權限的用戶和ip
grant all privileges on *.* to 'root'@'你的IP' identified by 'root' with grant option; # 添加用戶
flush privileges;
set password for 'root'@'你的IP'=password('你的密碼'); # 更改密碼