grouping by kode on max datetime

CREATE TABLE tabel(
kode_brg INT,
tgl_stock DATETIME
);

INSERT INTO tabel VALUES
(1,'2017-01-22 23:55:57'),
(1,'2017-01-22 23:44:07'),
(2,'2017-01-22 21:10:24'),
(1,'2017-01-22 19:52:57');

SELECT * FROM tabel;

+----------+---------------------+
| kode_brg | tgl_stock           |
+----------+---------------------+
|        1 | 2017-01-22 23:55:57 |
|        1 | 2017-01-22 23:44:07 |
|        2 | 2017-01-22 21:10:24 |
|        1 | 2017-01-22 19:52:57 |
+----------+---------------------+
4 rows in set (0.00 sec)

SELECT kode_brg,MAX(tgl_stock) AS tgl_stock
FROM tabel
GROUP BY kode_brg;

+----------+---------------------+
| kode_brg | tgl_stock           |
+----------+---------------------+
|        1 | 2017-01-22 23:55:57 |
|        2 | 2017-01-22 21:10:24 |
+----------+---------------------+
2 rows in set (0.00 sec)