CREATE USER 'cui'@'%' IDENTIFIED BY 'xxxxxxxxxxxxxxxxxx';
GRANT ALL ON test_db.* TO 'cui'@'%';
REVOKE SELECT ON test_db.* FROM 'cui'@'%';
CREATE USER 'cui'@'%' IDENTIFIED BY 'xxxxxxxxxxxxxxxxxx';
GRANT ALL ON test_db.* TO 'cui'@'%';
REVOKE SELECT ON test_db.* FROM 'cui'@'%';