DROP TABLE IF EXISTS my_table;
CREATE TABLE my_table
(id INT NOT NULL AUTO_INCREMENT PRIMARY KEY
,dataId INT NOT NULL
,value VARCHAR(12) NOT NULL
);
INSERT INTO my_table VALUES
(1 ,1 ,'xxx'),
(2 ,1 ,'xx1'),
(3 ,1 ,'xx2'),
(4 ,1 ,'xx1'),
(5 ,2 ,'yyy'),
(6 ,2 ,'yy1'),
(7 ,2 ,'yy2'),
(8 ,1 ,'zzz'),
(9 ,2 ,'yy3');
SELECT x.*
FROM my_table x
JOIN my_table y
ON y.dataid = x.dataid
AND y.id >= x.id
GROUP
BY dataid
, id
HAVING COUNT(*) <= 3
ORDER
BY dataid
, id DESC;
+----+--------+-------+
| id | dataId | value |
+----+--------+-------+
| 8 | 1 | zzz |
| 4 | 1 | xx1 |
| 3 | 1 | xx2 |
| 9 | 2 | yy3 |
| 7 | 2 | yy2 |
| 6 | 2 | yy1 |
+----+--------+-------+
6 rows in set (0.03 sec)
mysql>
