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安装Mysql数据库
mysql 表结构AUD操作
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mysql数据库 for ubuntu

Jun 07, 2016 pm 03:34 PM
for mysql ubuntu Base database

本文将从基础出发,介绍Mysql在Linux环境下的安装和基本使用命令,仅适用于Mysql初学者。 安装Mysql数据库 这里介绍最最简单的安装方式,至于编译安装,可以下载安装包, ./configure 生成Makefile,然后 make clean, make , make test, make install 我想这

本文将从基础出发,介绍Mysql在Linux环境下的安装和基本使用命令,仅适用于Mysql初学者。

安装Mysql数据库

这里介绍最最简单的安装方式,至于编译安装,可以下载安装包, ./configure 生成Makefile,然后 make clean, make , make test, make install 我想这些命令应该很基本了吧,这里不再敖述。

1. 安装命令

king@king-desktop:~$ sudo apt-get install mysql-server mysql-client
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2. 查看数据库版本,这里密码为“11”

king@king-desktop:~$ sudo mysqladmin -u root -p version
Enter password: 
mysqladmin  Ver 8.42 Distrib 5.1.70, for debian-linux-gnu on i486
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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3. 查看Mysql服务状态,启动或者关闭Mysql服务

king@king-desktop:~$ service mysql status
mysql start/running, process 899

king@king-desktop:~$ sudo /etc/init.d/mysql start|stop|restart
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4. 登陆数据库,并退出操作

命令里的 -u 指的是用户名, 这里指的是 root, -p 后接密码, 这里指安装数据库时候设置的密码,笔者的为11

king@king-desktop:~$ sudo mysql -uroot -p11
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5. 数据库内的基本操作

//  显示数据库
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| jxc                |
| mysql              |
+--------------------+
3 rows in set (0.08 sec)

// 使用某个数据库
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed

// 创建数据库
mysql> create database thinkphp;
Query OK, 1 row affected (0.00 sec)

// 删除数据库
mysql> drop database thinkphp;
Query OK, 0 rows affected (0.07 sec)

// 显示数据库中的某张表
mysql> show tables;

// 显示某个表的结构
mysql> describe slow_log;

// 选择显示的表内容
mysql> select * from slow_log;
Empty set (0.00 sec)

// 删除表
mysql> drop table slow_log;

// 导入数据库
mysql> source /var/www/webPage.sql;
或者命令: ~$ sudo mysql –uroot –p11 thinktest 
<h3 id="mysql-表结构AUD操作">mysql 表结构AUD操作</h3>
<pre class="brush:php;toolbar:false">添加表字段
   alter table tablename add elemName varchar(10) not null;
修改某个表字段类型
   alter table tablename change elemName elemNewName varchar(10) null;
   alter table tablename modify elemName varchar(10) null;
删除某个字段
   alter table tablename drop elemName;

向数据表中插入数据
   insert into tablename (elem1,elem2,...) values (A,B,...);

删除数据表中数据
   delete from tablename where id>1 order by time limit 1;

更新数据表中数据
   UPDATE tablename SET elem1=1, elem2=2 WHERE id=1; 
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