Can anyone tell me the syntax to calculate the last 12 months rolling total. The report parameters are period e.g. 01, 02, 03 etc and a year parameter. If the user selects period 06 in 2003 then I want the total to be for the last 12 periods e.g. period 01 - 06 in 2002 and periods 01 - 06 in 2003.
I'm a bit stuck on the syntax so any help greatly appreciated......
I'm a bit stuck on the syntax so any help greatly appreciated......