码迷,mamicode.com
首页 > 数据库 > 详细

Mysql命令汇总

时间:2017-09-14 18:39:29      阅读:159      评论:0      收藏:0      [点我收藏+]

标签:mysql

             flush privileges;

1.修改ROOT密码:

alter user ‘root‘@‘localhost‘ identified by ‘123‘;


2.取消密码复杂要求:

set global validate_password_policy=0;


3.查看密码长度:

select @@validate_password_length;


4.查看mysql当前有哪些用户:

 SELECT DISTINCT CONCAT(‘User: ‘‘‘,user,‘‘‘@‘‘‘,host,‘‘‘;‘) AS query FROM mysql.user;


4.1查看用户权限.

show grants from user;


5.锁表:

flush tables with read lock;


6.解表:

unlock tables;


7.查看锁表时间

show variables like ‘%timeout%‘;


8.创建用户方式:

grant all privileges on 库名.* to admin@‘%‘ identified by ‘123456‘; (授权库)

CREATE USER ‘username‘@‘host‘ IDENTIFIED BY ‘password‘; (单创建用户)


9.创建主从账号(在主数据库创建)

GRANT REPLICATION SLAVE ON *.* TO ‘repl‘@‘%‘ IDENTIFIED BY ‘password‘;


9.1.主库查询当前master的bin-log

show  matser status;


10.从库连接主库方式: 

CHANGE MASTER TO  

MASTER_HOST=‘主库IP‘, 

MASTER_PORT=3306,

MASTER_USER=‘repl‘,  

MASTER_PASSWORD=‘主库创建的密码‘,  

MASTER_LOG_FILE=‘mysql-bin.000002‘,  

MASTER_LOG_POS=154;    


11.启用mysql账号远程连接

GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "youpassword" WITH GRANTOPTION; 

12.收回账号权限

revoke select on dbname.* from username;

revoke all privileges on dbname[.tbname] from username;

privileges包括:    

alter:修改数据库的表     

create:创建新的数据库或表     

delete:删除表数据     

drop:删除数据库/表     

index:创建/删除索引     

insert:添加表数据     

select:查询表数据     

update:更新表数据     

all:允许任何操作     

usage:只允许登录


13. 创建mysql库

create database mobile DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

14.删除用户

DELETE FROM user WHERE User="username" and Host="localhost";


15.删除库:

drop database dbname;

本文出自 “一招拜师” 博客,请务必保留此出处http://sadoc.blog.51cto.com/12189157/1965227

Mysql命令汇总

标签:mysql

原文地址:http://sadoc.blog.51cto.com/12189157/1965227

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!