insert overwrite table table2
select d.nsr
from (select a.nsr_id as nsr
      from nsrxx a
               inner join zzsfp b
                          on b.gf_id = a.nsr_id
      group by a.nsr_id) as d
where nsr not in (select a.nsr_id
                  from nsrxx a
                           inner join zzsfp b
                                      on b.xf_id = a.nsr_id
                  group by a.nsr_id);