为了理解这个概念，我们将使用表格‘Information’中的数据，如下所示−

mysql> Select * from Information;
+----+---------+
| id | Name    |
+----+---------+
|  1 | Gaurav  |
|  2 | Ram     |
|  3 | Rahul   |
|  4 | Aarav   |
|  5 | Aryan   |
|  6 | Krishan |
+----+---------+
6 rows in set (0.00 sec)

现在，下面的查询将从上述表格“Information”中获取交替的偶数记录 −

mysql> Select id,Name from information group by id having mod(id,2) = 0;
+----+---------+
| id | Name    |
+----+---------+
|  2 | Ram     |
|  4 | Aarav   |
|  6 | Krishan |
+----+---------+
3 rows in set (0.00 sec)