Mine

select t.terr_id, max(t.start_date) as start_dat

from zz_sr_territory t

where t.start_date <= getDate() and t.end_date>=getDate()
group by t.terr_id;

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select * from zz_sr_territory s where start_date <= getDate() and end_date>=getDate();


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select * from zz_sr_territory t1, 
    (select terr_id, max(start_date) as sdate from zz_sr_territory
         where start_date <= getDate() and end_date >= getDate()
         group by terr_id) as t2
  where t1.terr_id = t2.terr_id and t1.start_date = t2.sdate;