Generation of Time dependent records with one source-field

Hi experts

Below is a screen from a master data table in ERP.

Key fields VTREF and SETFLAG.

The data field MDRKD is a date field.

In BW extracted a transformation should generate time dependent records, example for VTREF = 0001:

0001 F 26.01.2005 23.03.2005

0001 P 24.03.2005 10.02.2005

and so forth...

Is there any coding sample for such a requirement?

Thanks

T.