SHOW DATABASES;
CREATE USER name IDENTIFIED BY 'aaa"=bbb,ccc';
SET PASSWORD FOR name=PASSWORD('fdddfd');
SHOW GRANTS FOR name;
GRANT SELECT ON db_name.* TO name;
SHOW DATABASES;
DELETE FROM tb_name WHERE id=3;
DELIMITER $$
CREATE PROCEDURE pro(
IN num INT,OUT total INT)
BEGIN
SELECT SUM(score) INTO total FROM tb_name WHERE id=num;
END$$
DELIMITER ;
DROP PROCEDURE pro;