MySQL相关问题

MySQL相关问题

1. 卸载mysql包

sudo apt-get remove mysql-server mysql-client mysql-common

2. 清理残留数据

sudo dpkg -l |grep ^rc|awk '{print $2}' |sudo xargs dpkg -P
sudo rm -rf /etc/mysql /var/lib/mysql /var/log/mysql/ var/lib/mysql-filters /var/lib/mysql-keyring

3.为新安装的MySQL设置密码

因为新安装的MySQL没有密码，所以需要设置：

/usr/local/mysql/bin $ sudo ./mysqladmin -u root -p password
Enter password:

密码是空，直接回车，设置新密码：

New password: 
Confirm new password: