show 5.7 nbsp mysql8 連接 技術分享 註意 alter 源安裝

1.下載mysql源安裝包

shell> wget http://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm 2.安裝mysql源 shell> yum localinstall mysql80-community-release-el7-1.noarch.rpm 3.檢查mysql源是否安裝成功 shell> yum repolist enabled | grep "mysql.*-community.*" 4.修改 vim /etc/yum.repos.d/mysql-community.repo源 ，改變默認安裝的mysql版本。比如要安裝5.6版本，將5.7源的enabled=1改成enabled=0。然後再將5.6源的enabled=0改成enabled=1即可。

5.安裝MySQL shell> yum install mysql-community-server 6.啟動MySQL服務 shell> systemctl start mysqld 7.開機啟動 shell> systemctl enable mysqld shell> systemctl daemon-reload 8.修改root本地登錄密碼 1）查看mysql密碼 shell> grep ‘temporary password‘ /var/log/mysqld.log

2）連接mysql shell> mysql -uroot -p 3）修改密碼[註意：後面的分號一定要跟上] mysql> ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘MyNewPass4!‘; 或者： mysql> set password for ‘root‘@‘localhost‘=password(‘MyNewPass4!‘); mysql> show variables like ‘%password%‘; 9.添加遠程登錄用戶 mysql> GRANT ALL PRIVILEGES ON *.* TO ‘caoxiaobo‘@‘%‘ IDENTIFIED BY ‘Caoxiaobo0917!‘ WITH GRANT OPTION;

CentOS7 安裝mysql8.0（YUM方式）