数据库安装请参考：http://youngbrick.iteye.com/blog/2335851
创建数据库：
MariaDB [mysql]> create database mydbtest default charset utf8 collate utf8_general_ci; Query OK, 1 row affected (0.01 sec)
查询数据库：
MariaDB [mysql]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | mydbtest | +--------------------+ 4 rows in set (0.00 sec)
创建mysql登录用户：
用户：brick
密码：brick!123
localhost：只允许本机访问
%：允许远程访问
MariaDB [mysql]> insert into mysql.user(Host,User,Password) values('localhost','brick','brick!123');
Query OK, 1 row affected, 4 warnings (0.01 sec)
mysql 5.7没有password 字段了，通过create 创建帐号
CREATE USER 'username'@'localhost' IDENTIFIED BY '123456';
查看创建的帐号：
MariaDB [(none)]> select user,host,password from mysql.user; +-------+-----------+-------------------------------------------+ | user | host | password | +-------+-----------+-------------------------------------------+ | root | localhost | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | root | 127.0.0.1 | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | root | ::1 | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | brick | localhost | brick!123 | +-------+-----------+-------------------------------------------+ 4 rows in set (0.00 sec)
发现密码错了，密码需要password(‘密码’)加密，修改一下：
MariaDB [(none)]> update mysql.user set password=password('brick!123') where user='brick';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
确认一下，再看一眼：
MariaDB [(none)]> select user,host,password from mysql.user; +-------+-----------+-------------------------------------------+ | user | host | password | +-------+-----------+-------------------------------------------+ | root | localhost | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | root | 127.0.0.1 | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | root | ::1 | *023D9E78C29EAF0470DC6CC2BCBFA87504FE06E1 | | brick | localhost | *CEDA60EA702EFCE18A1B31CE4EB823FF363B8085 | +-------+-----------+-------------------------------------------+ 4 rows in set (0.00 sec)
授权,mydbtest所有权限授予brick帐号：
刚上面修改了mysql.user表，flush privileges一下：
MariaDB [mysql]> flush privileges; Query OK, 0 rows affected (0.00 sec)
如果不执行上面的命令，授权时会出现这个错误：
MariaDB [mysql]> grant all privileges on mydbtest.* to brick@localhost; ERROR 1133 (42000): Can't find any matching row in the user table
flush privileges执行完后，再执行grant授权。（mydbtest.*）mydbtest数据库的所有权限授予brick
MariaDB [(none)]> grant all privileges on mydbtest.* to brick@localhost; Query OK, 0 rows affected (0.00 sec) 授权权限后也需要flush privileges;否则帐号没有权限登录，权限没有持久化到数据库中。
MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec)
退出mysql：
MariaDB [mysql]> exit Bye
重新登录mysql：
[root@localhost ~]# mysql -ubrick -p Enter password: （输入密码） Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 13 Server version: 5.5.50-MariaDB MariaDB Server Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydbtest | +--------------------+ 2 rows in set (0.00 sec) MariaDB [(none)]>
查看当前用户的权限：
MariaDB [(none)]> show grants; +--------------------------------------------------------------------------------------------------------------+ | Grants for brick@localhost | +--------------------------------------------------------------------------------------------------------------+ | GRANT USAGE ON *.* TO 'brick'@'localhost' IDENTIFIED BY PASSWORD '*CEDA60EA702EFCE18A1B31CE4EB823FF363B8085' | | GRANT ALL PRIVILEGES ON `mydbtest`.* TO 'brick'@'localhost' | +--------------------------------------------------------------------------------------------------------------+ 2 rows in set (0.00 sec)
=======================命令备注==========================
授权grant xxxx to xxx：
MariaDB [(none)]> grant all privileges on mydbtest.* to brick@localhost;
删除权限revoke xxx from xxx：跟授权很像，grant换成revoke,to换成from
MariaDB [(none)]> revoke all privileges on mydbtest.* from brick@localhost;
查看用户权限：show grants for xxxx@xxxx
MariaDB [(none)]> SHOW GRANTS FOR 'brick'@'localhost'; +--------------------------------------------------------------------------------------------------------------+ | Grants for brick@localhost | +--------------------------------------------------------------------------------------------------------------+ | GRANT USAGE ON *.* TO 'brick'@'localhost' IDENTIFIED BY PASSWORD '*CEDA60EA702EFCE18A1B31CE4EB823FF363B8085' | +--------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)
更详细的授权命令写法：
https://www.techonthenet.com/mariadb/grant_revoke.php
数据导入：
将xx.sql文件放到/usr/local目录
登录mysql进入命令行
msyqlxx>use mydb; mysqxx>source /usr/local/xx.sql;