Key Date- Delimited Time Dep- Master data

Hi,

For time- dependent Master Data for example 0HRPOSITION, data stored in the following format.

This position was created in 07/01/2005 and delimited in 09/01/2007.

Position                Valid To           Valid From         Vacant

30000000            06/30/2005      01/01/1000                 

30000000            12/04/2005      07/01/2005          X

30000000            12/28/2005      12/05/2005          X

30000000            08/10/2006      12/29/2005          X

30000000           09/01/2007      08/11/2006          X

30000000            12/31/9999      09/02/2007          

Even though Position did not exist before 07/01/2005 BW fill the position Key value in the column to fill the gap between 01/01/1000 to 06/30/2005 AND after delimited date ( From 09/02/2007 to 12/31/9999).

My requirement is to: NOT SHOW any Position # if used key date out side the existance of this positon. So, if I use key data 06/30/2005 or 09/02/2007 the result should be BLANK/ Not assigned etc.

I hope this make sense and any help is greatly appreciated.

Regards

Arjun