CentOS mysql常用命令

使用root管理员登录MySQL：mysql -u root -p

保存数据修改：flush privileges;

启动MySQL：service mysqld start

停止MySQL：service mysqld stop

重启MySQL：service mysqld restart

开机自启MySQL：chkconfig mysqld on

关闭开机自启MySQL：chkconfig --level 345 mysqld off

创建abc数据库：create database abc;

显示所有数据库：show databases;

切换数据库：use root;      #切换到root数据库

删除数据库：drop database 数据库名     #默认数据库(test)

查看表：show tables;

查看表结构：describe user;

更改默认mysql管理员用户为admin

update mysql.user set user = "admin" where user = "root";

查看当前策略

SHOW VARIABLES LIKE 'validate_password%';

修改密码策略

set global validate_password_policy=0;

set global validate_password_mixed_case_count=0;

set global validate_password_special_char_count=0;

set global validate_password_length=6;

授权

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

FLUSH   PRIVILEGES;