Question

I have some data with start and stop date that I need to sum. I am not sure how to code for it.

Here are is the data I have to use:

STARTTIME,            STOPTIME,            EVENTCAPACITY
8/12/2009 1:15:00 PM, 8/12/2009 1:59:59 PM,     100

8/12/2009 2:00:00 PM, 8/12/2009 2:29:59 PM,     100

8/12/2009 2:30:00 PM, 8/12/2009 2:59:59 PM,      80

8/12/2009 3:00:00 PM, 8/12/2009 3:59:59 PM,      85

In this example I would need the sum from 1pm to 2pm, 2pm to 3pm and 3pm to 4pm

Any suggestions are appreciated.

Steve

Answer 1

How about something like:

SELECT TRUNC(stoptime,'HH'), sum(eventcapacity) 
  FROM yourtable
 GROUP BY TRUNC(stoptime,'HH');