How to report on dates between From and To dates

Question

Hi forum,
I have a requirement to report on Long Term Absences from work.  The user wants to enter a calendar month in a selection variable, and see who is away from work in that month.
I have the start and end dates of absences, but these are long term absences which span across months.  The problem is, if I base the Calendar Month variable on the start date or the end date of the absence, people get missed off the report.
For example, if we have someone on maternity leave for a year, the user wants to be able to enter any month within that year, and see that the person is on maternity leave.  So I cannot use the start date or end date of the absence as it is.
How do I get the report to run such that when a user enters a month, it will show everyone who is absent on any dates within that month?  I assume I need some kind of customer exit variable for this, but is there a standard SAP delivered variable which will work out all possible dates within the start and end date?  Or do I need to write some code myself?
I couldn't see anything in the forum already which would help me on this, but if there is an existing thread, please also let me know.
Many thanks
Mischa

Answer 1

Hi Mischa.
I think you can achieve what you want like this
Add the Start Month and End Month (let them be IO's that reference 0calmonth) to your cube and  populate them in the load using a formula, like Aron suggested.
Create a query with a  restricted key figure.  I suppose you are looking at some kind of count  to know how many people where absent in a given month, or something like that. Thus, add your KF to the structure and add the Start Month and End Month to the selection.
Restrict the Start Month using a variable, ZMONTH (this is what the user will enter at runtime), as follows:
Start Month <= ZMONTH.
Now restrict the End Month using a variable, XMONTH (this will have to be an exit variable filled in CMOD by reading ZMONTH) as follows:
End Month >= XMONTH.
Thus, your restricted key figure will only return values if the entered month is part of the absence interval. The abap you need for CMOD should be simple as all you are doing is reading a variable and passing it to another. From the top of my head, it should look something like this:
data:
l_s_range type rsr_s_rangesid,
loc_var_range like rrrangeexit.
case i_vnam.
the case statement will likely already be there, as well as the above definitions, so look for the case and insert the below
when 'XMONTH'.
if i_step = 2.
clear l_s_range.
loop at i_t_var_range into loc_var_range
where vnam = 'ZMONTH'.
l_s_range-low = loc_var_range-low.
l_s_range-sign = 'I'.
l_s_range-opt = 'EQ'.
append l_s_range to e_t_range.
endloop.
endif.
endcase.
this will likely already be there, so you won't need to put it there again.
Good luck!
Jacob
Edited by: Jacob Jansen on Jan 11, 2010 9:18 PM
Edited by: Jacob Jansen on Jan 11, 2010 9:30 PM