使用Linux,要用MySQL,必须对其常用命令非常熟悉. 下面是搜集的一些常用命令
使用Linux,要用MySQL,必须对其常用命令非常熟悉. 下面是搜集的一些常用命令
1.linux下启动mysql的命令:
mysqladmin start
/ect/init.d/mysql start (前面为mysql的安装路径)
2.linux下重启mysql的命令:
mysqladmin restart
/ect/init.d/mysql restart (前面为mysql的安装路径)
3.linux下关闭mysql的命令:
mysqladmin shutdown
/ect/init.d/mysql shutdown (前面为mysql的安装路径)
4.连接本机上的mysql:
进入目录mysql\bin,再键入命令mysql -uroot -p, 回车后提示输入密码。
退出mysql命令:exit(回车)
5.修改mysql密码:
mysqladmin -u用户名 -p旧密码 password 新密码
或进入mysql命令行SET PASSWORD FOR root=PASSWORD("root");
6.增加新用户。(注意:mysql环境中的命令后面都带一个分号作为命令结束符)
grant select on 数据库.* to 用户名@登录主机 identified by "密码"
如增加一个用户test密码为123,让他可以在任何主机上登录, 并对所有数据库有查询、插入、修改、删除的权限。首先用以root用户连入mysql,然后键入以下命令:
grant select,insert,update,delete on *.* to " Identified by "123";
二、有关mysql数据库方面的操作
必须首先登录到mysql中,有关操作都是在mysql的提示符下进行,而且每个命令以分号结束
1、显示数据库列表。
show databases;
2、显示库中的数据表:
use mysql; //打开库
show tables;
3、显示数据表的结构:
describe 表名;
4、建库:
create database 库名;
5、建表:
use 库名;
create table 表名(字段设定列表);
6、删库和删表:
drop database 库名;
drop table 表名;
7、将表中记录清空:
delete from 表名;
8、显示表中的记录:
select * from 表名;
9、编码的修改
如果要改变整个mysql的编码格式:
启动mysql的时候,mysqld_safe命令行加入
--default-character-set=gbk
如果要改变某个库的编码格式:在mysql提示符后输入命令
alter database db_name default character set gbk;

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