Question

I have a table with data as follows,

detectDate      |isp    |infection  | count
--------------------------------------
2012-10-02 01:00|aaaa   |malware    |3
2012-10-02 01:30|bbbb   |malware    |2
2012-10-02 01:33|bbbb   |spy-eye    |2
2012-10-02 01:45|aaaa   |DDos       |1
2012-10-03 01:50|cccc   |malware    |2
2012-10-03 02:00|dddd   |TDSS       |2
2012-10-03 04:50|dddd   |TDSS       |3

I need to get an out put like this, grouped by date and infection like so,

detectDate      |infection  | count
--------------------------------------
2012-10-02      |malware    |5
2012-10-02      |spy-eye    |2
2012-10-02      |DDos       |1
2012-10-03      |malware    |2
2012-10-03      |TDSS       |5

I know how to use group in general but not his far 🙁 can you please help me I need to group by date and infection and get the total of the count field as shown.

Answer 1

Use SUM function to sum count column and use DATE_FORMAT function to group by only date.

SELECT DATE_FORMAT(detectDate, '%Y-%m-%d') AS detectDate
      ,infection 
      ,SUM(`COUNT`) as `count`
FROM myTable
GROUP BY DATE_FORMAT(detectDate, '%Y-%m-%d'), infection

See this SQLFiddle