Install MySQL in Ubuntu and create new users

install MySQL

First , Check out your Ubuntu Has it been installed? MySQL

Open the terminal , Enter the following command ：

apt list | grep mysql-server

  If the installation is successful, it will be shown as follows

If not already installed , Enter the following command at the terminal ：

sudo apt-get install mysql-server

Carry out orders , The system will automatically MySQL Installation .

Create a new user

         When you complete the above MySQL After installation , We can log in MySQL, When logging in, we need to log in with user name and password , But when installing according to the above process , It doesn't let us set the user name and password .

All of us use regular login , Will report a mistake . Pictured

  Then after this time , We can enter the following commands at the terminal , Check it out. MySQL Default user and password in

sudo cat /etc/mysql/debian.cnf

The box below is MySQL The default user name and password in （ Everyone's password is different ）

  then , According to the default user and password, we can login to MySQL in

mysql -udebian-sys-maint -pXXXXXXXXXX( password )

Get into MySQL In the after , We can change our user name and password

First , choice mysql

use mysql;

then , Create a new user

CREATE USER ' user name '@'localhost' IDENTIFIED BY ' password ';

Create success , After that, we can check the current MySQL All users in

select user,host from mysql.user;

Once created , You can login through the user and password you create MySQL 了

however , In this way, newly created users have very few permissions , They can only perform operations that do not require permission . Such as login MySQL、 Use SHOW Statement to query the list of all storage engines and character sets .

therefore , We need to give him authority

grant all on*.*to [email protected];

This sentence , It is to give all permissions to the new user created .

When the assignment is complete , New users can complete any operation of the database .