Need to Know How to Group Report in 30-Second Time Intervals

Question

I am trying to group records in the report based on a date/time field in a table.  The user enters a date/time range to report on, and I want the the records from the table that fall within the date/time range entered to be grouped in 30-second intervals on the report.  I've tried a number of different things and can't seem to get anything to work.  Can anyone provide some insight into how this can be done?  Thank you in advance!!

Answer 1

Hi Joy,
Sorry for the late reply.
What you want to do is create a formula something like this (Syntax hasn't been verified... at all)
whilereadingrecords;
//I'm assuming your datetime field is a string. It probably isn't but you can do the same op with another
//data type. I've also assumed (likely wrongfully) that the time in seconds is the last two digits
//for sake of argument, your date time field has this format: YYYYMMDD-HH:MM:SS
stringvar strSecondsOfCall;
stringvar strYourGroupString; //or something
strSecondsOfCall := right(<yourfield>, 2);
if(strSecondsOfCall > "30") then strYourGroupString := left( (<yourfield>,15) & "30"
else strYourGroupString := left( (<yourfield>,15) & "00"
So, what the formula does is determine if the seconds portion of the date time occured in the former or the ladder half of the minue, and assigns it the floor value (arbitrary implementation on my part, you can call it whatever you like).
Now, in your report, use the group exppert to group based on this formula field, and you should get the data the come out grouped in 30 second intervals.
ie: You'll have groups like:
20081231-12:59:00
   -all of the calls that happened from 59:00 - 59:30
20081231-12:59:30
   -all of the calls that happened from 59:30 - 00:00
Happy new year!!!