Lowest ranked items out of those which have been ranked x times

Question

I have a sql dataset that look like this

Table df1:

+-----+------+---------+
| Key | Name | Ranking |
+-----+------+---------+
|   1 | A    |       2 |
|   2 | B    |       4 |
|   1 | A    |       3 |
+-----+------+---------+

I want to find the lowest ranked item which has been ranked atleast 5 times.

This is the code I have so far but it doesnt seem to work:

select 
     Key,
     Name,
     Ranking,
     sum(Ranking) 
from 
     table 
Group BY 
     key
Where 
     Count(Ranking)>5

Answer 1

What do you think about this:

SELECT
     id,
     Name,
     MIN(Ranking)   
FROM 
     table 
Group BY id 
HAVING SUM(Ranking) >= 5;

Answer 2

[example]

SELECT
     key_,
     Name,
     MAX(Ranking),
     MIN(Ranking) 
FROM 
     df1 
GROUP BY key_ 
HAVING COUNT(Ranking) >= 5;

As you'll see in the example/demo, the first query on the table with no key having at least 5 rankings results in no rows. Then I've inserted 4 more records for key_=5 and then queried again, retrieving the result:

(included MAX() for the other Ranking in your example because you weren't using an ORDER BY so the result for Ranking in that case 'could' be random.)