Answers for "give rights to mysql user"

mysql create user

CREATE USER 'user'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON * . * TO 'user'@'localhost';
FLUSH PRIVILEGES;

grant all priviledges to mysql user

/*
The GRANT statement is used to assign full control over specific database by providing all priviledge.
Follow below statement for assign priviledge to user
*/

Syntax: 
GRANT ALL PRIVILEGES ON mydb.* TO 'myuser'@'%' WITH GRANT OPTION;

/*
I hope it will help you.
Namaste
*/