SQL

mysql grant all privileges to a user

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

mysql users and privileges list

SELECT * FROM mysql.user;

SELECT * FROM information_schema.user_privileges;
SELECT CONCAT('SHOW GRANTS FOR ''',user,'''@''',host,''';') FROM mysql.user;
SHOW GRANTS FOR 'my_user'@'localhost';

how to check user grant in mysql

-- to grant all privileges on 1 database and all its table
GRANT ALL PRIVILEGES ON database_name.* TO 'user'@'localhost';
-- to grant all privileges on all databases and all their respective tables
GRANT ALL PRIVILEGES ON *.* TO 'user'@'localhost';