The following data definition defines an organization's employee hierarchy. An employee is a manager if any other employee has their managerId set to this employee's id. That means John is a manager ...
INSERT INTO messages (id, type, data) VALUES (0, 'notification', 'Hello') ; INSERT INTO messages (id, type, data) VALUES (1, 'alert', 'Danger! Danger! Danger!'); ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results