create database db1;
GRANT CREATE ON db1.* to user_1@localhost;
GRANT SELECT ON db1.* to USER_1@localhost;
CREATE TABLE t1(f1 int);
SELECT * FROM t1;
ERROR 42000: SELECT command denied to user 'user_1'@'localhost' for table 't1'
SELECT * FROM t1;
f1
CREATE TABLE t2(f1 int);
ERROR 42000: CREATE command denied to user 'USER_1'@'localhost' for table 't2'
REVOKE ALL PRIVILEGES, GRANT OPTION FROM user_1@localhost;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM USER_1@localhost;
DROP USER user_1@localhost;
DROP USER USER_1@localhost;
DROP DATABASE db1;
use test;