Database Software

I have a need to create a fiscal year time dimension and I created using Time Wizard in OWB. When I was developing BI Reports, I found some inconsistencies in Time dimension as it was showing figures in all the months of my first quarter of new financial year that Apr 2009 – Mar 2010. On close inspection of Time Dimension table I found that fiscal_month_time_span value varies from 35 to 28 to 29 for different months. i.e. it’s not matching with corresponding Calendar month. This means I am unable to plot data correctly using fiscal year dimension.

Maybe this is how it works in Oracle, but this does not solve my problem. Could anyone give me some solution for this ? My Fiscal year is from ‘1- Apr – 09’ to ’31-Mar-10’. In my reports I would like to see transactions for April month when I use month attribute of time dimension like it happens in Calendar time dimension.