(1)启动服务器
如果发现”Can’t connect to local MySQL server through socket…”,通常是因为MySQL服务器没有启用。
用命令行启动和关闭MySQL服务器:
1 2
| sudo /usr/local/mysql/support-files/mysql.server start sudo /usr/local/mysql/support-files/mysql.server stop
|
(2)修改root用户密码
方法1: 用SET PASSWORD命令
1 2
| mysql -u root mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');
|
方法2:用mysqladmin
1
| mysqladmin -u root password "newpass"
|
如果root已经设置过密码(123456),那么修改密码为abcdef的命令是:
1
| mysqladmin -u root -p123456 password abcdef
|
注意:上述命令中参数-p不要和后面的密码分开写,要写在一起,不然会出错
方法3: 用UPDATE直接编辑user表
1 2 3 4
| mysql -u root mysql> use mysql; mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root'; mysql> FLUSH PRIVILEGES;
|
在丢失root密码的时候,可以这样
1 2 3 4
| mysqld_safe --skip-grant-tables& mysql -u root mysql mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root'; mysql> FLUSH PRIVILEGES;
|
(3)登录使用mysql
1
| mysql -h localhost -u root -p
|