Question

I have a video site and I’m storing hit statistics in a table like this:

+------------+------------------+------+-----+-------------------+----------------+
| Field      | Type             | Null | Key | Default           | Extra          |
+------------+------------------+------+-----+-------------------+----------------+
| id         | int(10) unsigned | NO   | PRI | NULL              | auto_increment |
| user_id    | int(10) unsigned | NO   | MUL | NULL              |                |
| video_id   | int(10) unsigned | NO   | MUL | NULL              |                |
| user_agent | varchar(500)     | NO   |     | NULL              |                |
| ip         | varchar(255)     | NO   |     | NULL              |                |
| date_add   | timestamp        | NO   | MUL | CURRENT_TIMESTAMP |                |
+------------+------------------+------+-----+-------------------+----------------+

I want show stats daily (like 2012-02-14: 5000 web views, 850 iphone views), like this:

+---------------------+---------+---------------+
| date                | web     | iphone        |
+---------------------+---------+---------------+
| 2012-02-09          |    500  | 478           |
| 2012-02-10          |    2377 | 204           |
| 2012-02-12          |    247  | 21            |
| 2012-02-13          |    4879 | 236           |
| 2012-02-14          |    8767 | 101           |
+---------------------+---------+---------------+

The iPhone user ID is 2422, the others are web users.

I’m sorry for my bad English.

Answer 1

SELECT DATE(date_add) AS date, 
       SUM(CASE WHEN user_id = 2422 THEN 0 ELSE 1 END) AS Web,
       SUM(CASE WHEN user_id = 2422 THEN 1 ELSE 0 END) AS iPhone
FROM stats
GROUP by DATE(date_add)