Design Query with multiple years and ytd column

Question

I'm trying to design a somewhat dynamic query that looks similar to:
Jan --- Feb --- Mar --- Apr <b>...</b> Dec --- YTD
2002
2003
2004
2005
The problem is two-fold.
First my predecessor had hard-coded the dates for each year (for each column except YTD) but I believe the dates should be dynamic, in the sense that I always receive the last 36 months of history.  (So in 2008, I won't be seeing 2002-2004 data).
Next I need to have this Year-to-date total column.  What this means is that, if we are in August, we see the total for Jan '03-Jul '03 in the 2003 row, Jan '04 - Jul '04 in the 2004 row, etc.
Any suggestions?
Thanks,
Jill Mayo

Answer 1

What you need to do is use restricted key figures for the columns where you either restrict to a variable with offsets or customer exit variables.  I think it would be easier to use variable offsets.  Also, to get the YTD, you can either you an SAP exit variable or create a customer exit variable to calculate the YTD based on the variable value.  To get the Month names, you will need to use text variables for the name of the restricted key figures. 
thanks,
Jeff