query the data day by day

Question

i have this database table name clicks

id  userid  siteID  date
1   3       1       2014-02-15
2   3       2       2014-02-15
3   3       3       2014-02-15
4   3       4       2014-02-15
5   3       5       2014-02-15
6   3       4       2014-02-16
7   3       5       2014-02-16
8   3       6       2014-02-16
9   3       7       2014-02-16
10  3       8       2014-02-16
11  3       9       2014-02-17
12  3       5       2014-02-17
13  3       4       2014-02-17
14  3       1       2014-02-17
15  3       1       2014-02-17
16  3       2       2014-02-18
18  3       3       2014-02-18
18  3       4       2014-02-18
19  3       7       2014-02-18
20  3       6       2014-02-18
21  3       1       2014-02-19
22  3       2       2014-02-19
23  3       3       2014-02-19
24  3       4       2014-02-19
25  3       5       2014-02-19
26  3       8       2014-02-19

my quesion is how to count clicks by every day by userID

i want output like

userid   clicks  date
3        5       2014-02-15
3        5       2014-02-16
3        5       2014-02-17
3        5       2014-02-18
3        5       2014-02-19

hope my question is clear

Answer 1

Try this with count()

SELECT userid ,
COUNT(userid) clicks,
`date`
FROM `table`
GROUP BY `date`,userid 

Answer 2

A simple Group By clause will do:

SELECT userid, count(id) as clicks, date
FROM table
GROUP BY userid, date
ORDER BY date, userid

Don't forget to include the userid in the grouping.

Answer 3

SELECT userid ,COUNT(id) as clicks,`date`FROM `table` GROUP BY `date`,userid