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with test_data as( select date'2020-08-01' dt, '123 street' loc from dual union all select date '2020-08-01', '89 street' from dual union all select date '2020-08-02', '456 airport' from dual union all select date '2020-08-04', '456 airport' from dual union all select date '2020-08-05', '67 street' from dual union all select date '2020-08-06', '89 street' from dual union all select date '2020-08-07', '123 street' from dual ) select max(dt),loc from ( select t.* ,row_number() over (order by dt) - row_number() over (partition by loc order by dt) grp from test_data t ) group by grp,loc having count(*) > 1
MAX(DT)
LOC
04-AUG-20
456 airport
with test_data as( select date'2020-08-01' dt, '123 street' loc from dual union all select date '2020-08-01', '89 street' from dual union all select date '2020-08-02', '456 airport' from dual union all select date '2020-08-04', '456 airport' from dual union all select date '2020-08-05', '67 street' from dual union all select date '2020-08-06', '89 street' from dual union all select date '2020-08-07', '123 street' from dual ) select * from test_data match_recognize ( order by dt all rows per match pattern (equal{1,}) define equal as loc = prev(loc) );
DT
LOC
04-AUG-20
456 airport