Hi Serena Cyr..
The user creates the Journal voucher and posted as journal entry by manager or senior level..
Try This
Select T2.TransId, T1.Usersign as Createdby, T2.UserSign2 As ApprovedBY from OBTD T1 inner join OJDT T2 on T1.BatchNum=T2.BatchNum
Hope helpful
Regards
Kennedy