檢視安裝以及解除安裝

# 檢視

rpm -qa | grep mysql

# 解除安裝

yum -y remove mysql-libs-5.1.66-2.el6_3.x86_64

1.centos7需要先解除安裝mariadb
檢視命令rpm -qa | grep mariadb

安裝包資源地址

mysql下載地址：https://dev.mysql.com/downloads/mysql/

# 下載資源名稱

mysql-5.7.22-1.el7.x86_64.rpm-bundle.tar

解壓資源

tar -xvf mysql-5.7.22-1.el7.x86_64.rpm-bundle.tar

獲取rpm包

mysql-community-common-5.7.19-1.el6.x86_64.rpm

mysql-community-client-5.7.19-1.el6.x86_64.rpm

mysql-community-server-5.7.19-1.el6.x86_64.rpm

mysql-community-libs-5.7.19-1.el6.x86_64.rpm

安裝

# 安裝順序

# common --> libs --> clients --> server

# 安裝命令

rpm -ivh mysql-community-common-5.7.19-1.el6.x86_64.rpm mysql-community-libs-5.7.19-1.el6.x86_64.rpm mysql-community-client-5.7.19-1.el6.x86_64.rpm mysql-community-server-5.7.19-1.el6.x86_64.rpm

可能需要依賴包libaio

安裝命令yum -y install libaio

初始化

mysqld --initialize --user=mysql

啟動

service mysqld start

登入

# 檢視初始密碼

cat /var/logs/mysql.log

 

#或者

grep 'password' /var/logs/mysql.log -n -B 5

 

# 登陸

mysql -uroot -p'123456'

# 修改初始密碼

set PASSWORD=PASSWORD('密碼');

授權遠端連結

### 授權192.168.0.1可以遠端連結*[所有資料庫].*[所有表] 賬號：root 密碼123456

grant all privileges on *.* to 'root'@'192.168.0.1' identified by '123456';

 

### 授權所有ip

grant all privileges on *.* to 'root'@'%' identified by '123456';

 

### 以上*.*表示[資料庫].[表]

 

 

### 使授權立刻生效

flush privileges;