mysql创建库_mysql create database ranger-优快云博客

本文详细介绍了如何在MySQL中修改root用户的密码状态、更新密码、刷新权限，并创建和授权新的数据库用户。最后展示了如何将MySQL添加到系统服务并重启，以及查看服务状态。

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[root@localhost ~]# mysql -uroot -p
Enter password: 
MySQL [(none)]> use mysql;
MySQL [mysql]> UPDATE user SET `password_expired`='N' where user='root';   ##将密码过期修改为 密码不过期；
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

----select User,password_expired,authentication_string from user;
MySQL [mysql]> select * from mysql.user where user='root' \G; #查看数据
MySQL [mysql]> UPDATE user SET `authentication_string` = PASSWORD('root') where User='root';  ##修改密码；
Query OK, 3 rows affected, 1 warning (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 1

MySQL [mysql]> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

MySQL [mysql]> exit;

create database ambari;
CREATE USER ‘ambari’@’%’ IDENTIFIED BY ‘ambari3321’;
GRANT ALL PRIVILEGES ON ambari.* TO ‘ambari’@’%’ WITH GRANT OPTION;
flush privileges;

create database hive;
CREATE USER ‘hive’@’%’ IDENTIFIED BY ‘hiveP1124’;
GRANT ALL PRIVILEGES ON hive.* TO ‘hive’@’%’ WITH GRANT OPTION;
flush privileges;

create database ranger;
CREATE USER ‘ranger’@’%’ IDENTIFIED BY ‘rangerP1124’;
GRANT ALL PRIVILEGES ON ranger.* TO ‘ranger’@’%’ WITH GRANT OPTION;
flush privileges;

添加mysql到系统服务：
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

重启主机，服务
查看：systemctl status mysql