关于SQL Aggregation - error to show data only的问题

Question

I'm trying to aggregate to show the earliest rejected (case #, created_on, status, and amount) and approved rows within the same case#. When I put a min() function to return the earliest rejected transaction, it returns an error. Can anyone help?

[raw data]

[expected result]

Answer 1

here is one way:

select * from ( 
   select * , rank() over (partition by case_num, status order by created_on) as rn 
   from tablename
) t where t.rn = 1