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HomeDatabaseMysql TutorialMySQL数据库常用命令_MySQL

转载自:http://wenku.baidu.com/link?url=bx9t6AqbYqc_ufWsEXg6_8QqfgNRK4acLhUStjUifsfwHGtXRofdIxHMF8eQaeXau0dXEWzUBzU3YwRkOdd1yFQXR_8W5ie2w1J07xAdSGG

在命令行连接MySQL数据库

格式: mysql -h主机地址 -u用户名 -p用户密码 数据库
1、连接到本机上的MySQL。
  首先在打开cmd命令行,然后键入命令mysql -uroot -p,回车后提示你输密码,输入密码后直接回车即可进入到MYSQL中了,MySQL的提示符是:mysql>
示例如下:
C:/> mysql -uroot -pmysql test


mysql> show databases; 显示所有的数据库


mysql> use mysql; 切换数据库


mysql> show tables; 显示数据库中的所有表


mysql> exit;(回车) 退出mysql


2、连接到远程主机上的MySQL。假设远程主机的IP为:192.168.1.22,用户名为root,密码为root。键入以下命令:
C:/> mysql -h192.168.1.22 -uroot -proot
  (注:u与root可以不用加空格,其它也一样)
3、退出MySQL命令: exit (回车)
MySQL控制台部分命令 
1、启动和关闭数据库 
        >net start mysql 
        >net stop mysql          
所以命令必须是一行的第一个,并且以分号结尾: 
All text commands must be first on line and end with ";" 


2、根据用户名密码,登录数据库 
        >mysql -uroot -p; 
        如果数据库没有密码则使用 
        >mysql -uroot;         
3、查看在当前服务器中有多少个数据库 

        >show databases;         

4、删除某个数据库 
        >drop database databaseName; 
        >commit;       
5、创建数据库 
        >create database databaseName;         
6、选择使用某个数据库 
        >use databaseName; 
7、查看数据库中有多少的表 
        >show tables;      
8、创建表 
        >create table tableName( 
                id bigint ... 
                name varchar(20)... 
                ... 
        );          
9、显示表结构 
        >describe tableName;     
10、向表中加入数据并查看 
        >insert into tableName(id、name...) values('1'、'admin'、...); 
        >select * from tableName;    
11、导入.sql文件(文件所在路径是F:/file.sql 
        >source F:/file.sql;     
12、删除表 
        >drop table tableName;         
13、删除表中的所有数据,但是表结构依然存在 
        >delete from tableName;        
14、更新表中的数据、如果没有where,则将影响所有的记录 
        >update tableName set name='administrator' where id='1'; 

15、查看服务器版本和当前日期 
        >select version()、current_date; 
        >select version(); 
        >select now();         
16、把mysql作为一个简单的计算器 
        >select pi(); 
        >select pi()*10;          
17、查看用户 
        >select user();          
18、使用load 
        >load data local infile filePath into table tableName

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