Query help needed - count occurrences per hour

Databases
1

I am trying to create a query that will count the number of times
each value in field/incident occurs in an hour.

Sample Data:
Date_occurred Time_occurred incident
| 2011-03-01 | 08:25:00 | RCCD |
| 2011-03-01 | 08:22:00 | RCCDSAC |
| 2011-03-01 | 08:24:00 | RCCDSAC |
| 2011-03-01 | 08:25:00 | RCCDSAC |
| 2011-03-01 | 08:08:00 | RCCD |
| 2011-03-01 | 08:11:00 | RCCD |
| 2011-03-01 | 08:05:00 | RCCD |
| 2011-03-01 | 08:03:00 | RCCDIM |
| 2011-03-01 | 07:09:00 | RCCDEM |
| 2011-03-01 | 06:29:00 | RCCDIM |
| 2011-03-01 | 06:32:00 | RCCDEM |
| 2011-03-01 | 06:25:00 | RCCDEM |
| 2011-03-01 | 06:16:00 | RCCDEM |
| 2011-03-01 | 05:59:00 | RCCDSAC |
| 2011-03-01 | 06:01:00 | RCCDSAC |
| 2011-03-01 | 06:02:00 | RCCDSAC |
| 2011-03-01 | 06:04:00 | RCCDSAC |
| 2011-03-01 | 06:05:00 | RCCDEM |
| 2011-03-01 | 05:57:00 | RCCDEM |

What I would like the result to look like this:

Hour RCCD# RCCDSAC# RCCDIM# RCCDEM#
08 | 4 | 3 | 1 | 0
07 | 0 | 0 | 0 | 1
06 | 3 | 0 | 1 | 2

I think that I understand how to group by hour but I’m not sure how to get the totals for each incident type for the hour

Any help will be appreciated.

2

Extract the totals for each incident type like this:

hour incident total

and then create the horizontal layout using PHP (or whatever language you use).

3

Thank you for your reply

My goal is to get this data for a 24 hour period with a single query. I don’t want to have to query each hour for each incident type.

I do similar queries with other data, not datetime fields, using sum(if()) statements but have not been able to figure out how to do this when grouping by hour.

4 

SELECT 
    HOUR(Time_occurred) AS hourofday
  , incident
  , COUNT(*)
FROM table
WHERE Date_occurred = ...
GROUP BY 
    HOUR(Time_occurred)
  , incident