BRM role id and Rep. Role id

Hi All,

Could you help clarify the field ROLE_ID, mentioned in table GRACUSERROLE

my observation: BRM role id is stored in table GRACROLE. While GRACUSERROLE has 2 columns for Role ids. The first column is not of BRM,  as the name of the field is USERROLEID. So, could you clarify on the 2nd field ROLE_ID.

I selected some role ids, which are present in GRACROLE. But i do not find these ids, in any of the columns of GRACUSERROLE.

Regards

Plaban