give user all permissions mysql code example

Example 1: mysql grant all privileges to a user

GRANT ALL PRIVILEGES ON database_name.* TO 'username'@'localhost';

Example 2: mysql user permission database

GRANT ALL PRIVILEGES ON `db_name`.* TO 'user'@'host'

Example 3: how to add privilege in mysql user

CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'password';