Oracle SQL GROUP BY “not a GROUP BY expression” help

Question

I have a table some_table like

+--------+----------+---------------------+-------+
| id     | other_id | date_value          | value |
+--------         


        

Answer 1

 select id, other_id, date_value, value from
 (
   SELECT id, other_id, date_value, value, 
   ROW_NUMBER() OVER (partition by other_id order BY Date_Value desc) r
   FROM some_table 
   WHERE other_id IN (1, 2, 3) 
 )
 where r = 1