select
  group_number,                            -- GROUP_NUMBER NUMBER
  member_number,                           -- MEMBER_NUMBER NUMBER
  member_incarnation,                      -- MEMBER_INCARNATION NUMBER
  usergroup_number,                        -- USERGROUP_NUMBER NUMBER
  usergroup_incarnation                    -- USERGROUP_INCARNATION NUMBER
from
  gv$asm_usergroup_member
where
  inst_id = USERENV('Instance')