How to add username and password in mysql

Method to add username and password in mysql: execute [insert into mysql.user(Host,User,Password) values("localhost","username",password("password"));】 statement.

Reminder:

This operation is performed under the WIN command prompt, and the same applies to phpMyAdmin.

User: phplamp User database: phplampDB

(Recommended tutorial: mysql tutorial)

The specific method is as follows:

1. Create a new user

//登录MYSQL
@>mysql -u root -p
@>密码
//创建用户
mysql> insert into mysql.user(Host,User,Password) values("localhost","phplamp",password("1234"));
//刷新系统权限表
mysql>flush privileges;

This creates a user named: phplamp with a password of: 1234.

Then log in.

mysql>exit;
@>mysql -u phplamp -p
@>输入密码
mysql>登录成功

2. Authorize the user

//登录MYSQL（有ROOT权限）。我里我以ROOT身份登录.
@>mysql -u root -p
@>密码
//首先为用户创建一个数据库(phplampDB)
mysql>create database phplampDB;
//授权phplamp用户拥有phplamp数据库的所有权限。
>grant all privileges on phplampDB.* to phplamp@localhost identified by '1234';
//刷新系统权限表
mysql>flush privileges;
mysql>其它操作
 
/*
如果想指定部分权限给一用户，可以这样来写:
mysql>grant select,update on phplampDB.* to phplamp@localhost identified by '1234';
//刷新系统权限表。
mysql>flush privileges;
*/

3. Delete the user

@>mysql -u root -p
@>密码
mysql>DELETE FROM user WHERE User="phplamp" and Host="localhost";
mysql>flush privileges;
//删除用户的数据库
mysql>drop database phplampDB;

4. Modify the specified user password

@>mysql -u root -p
@>密码
mysql>update mysql.user set password=password('新密码') where User="phplamp" and Host="localhost";
mysql>flush privileges;

Related recommendations: php training

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