Hi Gayathri,
To retrieve the Users and corresponding assigned roles, you can also use the below query in 7.2
Select A.mskey, A.mcvalue as Userid, B.mcvalue as AssignedRoles from idmv_vallink_basic_active A, idmv_vallink_basic_active B
where A.mcattrname='MSKEYVALUE' and B.mcattrname='MXREF_MX_ROLE' and A.mskey=B.mskey
Regards,
C Kumar