mysql> select a.cur_id,b.cur_id from cur as a, cur as b limit 5
-> ;
+--------+--------+
| cur_id | cur_id |
+--------+--------+
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
+--------+--------+
5 rows in set (0.02 sec)