Get Only Highest Amount

Question

I have a table "History" where all bids for a particular Item are recorded. Is there a way I could query this table to get only the highest Bidder?
Below is my query returns all records.
select Itm,Max(Amntbid)
From history
Group By Itm,Amntbid
order by Amntbid DESC
The above works by sorting starting with the Highest amount. But is there a way to get only one record with the highest amount?

Answer 1

Sorry, I should have added, it's unclear from your requirements if you are looking for highest bid per item or if you are just looking for the highest bid overall. If you are just looking for the highest bid over you can remove the PARTITION BY clause:
All items with highest bid:
select itm, amntbid from
     (select itm, amntbid, dense_rank() over (order by amntbid desc) rnk
          from history)
where rnk = 1;Selects only one item (even if there are multiple items) with highest bid:
select itm, amntbid from
     (select itm, amntbid, row_number() over (order by amntbid desc) rnk
          from history)
where rnk = 1;