sql统计字段

SELECT activity_id, count(*) FROM activity_prize_lottery_record GROUP BY activity_id HAVING count(*) > 0

output:
+--------------+----------+--+
| activity_id  |   _c1    |
+--------------+----------+--+
| 6            | 5648     |
| 9            | 3607     |
| 1            | 1388     |
| 4            | 7292     |
| 7            | 5439     |
| 5            | 2595     |
+--------------+----------+--+