set root password for user mysql code example

Example 1: change root password mysql

#First Login with administrative account (Even root itself)

mysql> use mysql;
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD("NewPassword");
mysql> flush privileges;

#Now quit and login
mysql> quit

mysql -u root -p
#Click enter and It will prompt you to enter password
#Just to be safe you should also still try to log in without entering a password

Example 2: enable password in mysql root user in mysql 8

1. If you in skip-grant-tables mode in mysqld_safe:

mysql> UPDATE mysql.user SET authentication_string=null WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysql> exit;

and then, in terminal:

$ mysql -u root

in mysql:
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'yourpasswd';


2. Not in skip-grant-tables mode just in mysql:
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'yourpasswd';