/* Write your PL/SQL query statement below */


-- create a table
CREATE TABLE Employee (
    id INT, 
    name VARCHAR,
    salary INT,
    managerId INT,
    CONSTRAINT PK_STUDENT PRIMARY KEY (id)
);
-- insert some values
INSERT INTO Employee (id, name, salary, managerId) VALUES (1, 'Joe', 70000, 3);
INSERT INTO Employee (id, name, salary, managerId) VALUES (2, 'Henry', 80000, 4);
INSERT INTO Employee (id, name, salary, managerId) VALUES (3, 'Sam', 60000, NULL);
INSERT INTO Employee (id, name, salary, managerId) VALUES (4, 'Max', 90000, NULL);


SELECT T1.name AS Employee
FROM Employee T1
JOIN Employee T2 ON T1.managerId = T2.id
WHERE T1.salary > T2.salary