Payroll Periods

Hi ,

I/we understand that payroll results are generated period wise,

If I want to fetch data for a wage type 1999, for period Jan

then payroll result/RT would give me the amount for period

01.01.2008 to 31.01.2008. Right?

Lets say I want to fetch amount data of WT1999 only till 13.01.2008 while running payroll. Is there any process to do it?

If no, is there any table which stores amounts based on these many days or till this date... per say?