Example
CREATE TABLE stack(
id INT,
username VARCHAR(30) NOT NULL,
password VARCHAR(30) NOT NULL
);
INSERT INTO stack (`id`, `username`, `password`) VALUES (1, 'Foo', 'hiddenGem');
INSERT INTO stack (`id`, `username`, `password`) VALUES (2, 'Baa', 'verySecret');
Query
SELECT id FROM stack;
Result
+------+
| id |
+------+
| 1 |
| 2 |
+------+
