Where can I get incoming bank exchange rate in FI table?

Hi all,

May I know where is the incoming bank exchange rate stored? In which table?

Currently, I am told to used the BSEG table to get the local amount / doc amount for all G/L account with number 38*********

Problem: All those lines with these G?L acc 38******* have no customer no and no billing doc no (vbeln all space). I cannot match the (BSEG) rows with my sales data (VBRK/VBRP tables).

Surely the bank exchange rate is stored somewhere rather than having to calculate myself, right?

Thanks.