mysql在ubuntu上的安装过程

1、安装mysql-server：

hadoop@stcn501a0166:~$ mysql
程序 'mysql' 已包含在下列软件包中：
* mysql-client-core-5.5
* mariadb-client-core-5.5
* mysql-client-core-5.6
* percona-xtradb-cluster-client-5.5
请尝试：sudo apt-get install <选定的软件包>
hadoop@stcn501a0166:~$ sudo apt-get install mysql-server
[sudo] password for hadoop:
正在读取软件包列表... 完成
正在分析软件包的依赖关系树
正在读取状态信息... 完成

 说明：遇到输入的地方输入Y，过程中需要设置root用户的密码，设置时记住密码

2、root用户登录：

hadoop@stcn501a0166:~$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 48
Server version: 5.5.44-0ubuntu0.14.04.1 (Ubuntu)

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

 3、查看系统中的数据库：

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

mysql>

 4、新建测试用数据库：

mysql> create database example;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| example |
| mysql |
| performance_schema |
+--------------------+
4 rows in set (0.00 sec)

mysql>

 5、创建新的用户帐号：

mysql> create user 'mzuser'@'localhost' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
mysql> grant all on example.* To 'mzuser'@'localhost';
Query OK, 0 rows affected (0.00 sec)

 说明：给用户赋予在example数据库上的权限

6、使用新用户登录

hadoop@stcn501a0166:~$ mysql -u mzuser -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 49
Server version: 5.5.44-0ubuntu0.14.04.1 (Ubuntu)

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| example |
+--------------------+
2 rows in set (0.00 sec)

mysql>

 7、修改用户访问的数据库并查看库中表

mysql> use example
Database changed
mysql> show tables;
Empty set (0.00 sec)

mysql> exit

 由于新创建的库中没有任何表，所以显示为empty

8、退出登录并关闭数据库服务：

     sql>exit

     ～$sudo /etc/init.d/mysql stop

9、测试创建表（使用新建用户登录，use example数据库）

mysql> create table CmsUser(
> userid int(8) not null auto_increment primary key,
>username varchar(20) not null,
> password varchar(20),
> area varchar(10),
>deptrole varchar(10));
Query OK, 0 rows affected (0.06 sec)

mysql> show tables;
+-------------------+
| Tables_in_example |
+-------------------+
| CmsUser |
+-------------------+
1 row in set (0.00 sec)