Question

id field
1  100
2  80
3  200
4  230

Is it possible to find out the rank of id 2 for example if ordered by field DESC?

In this case the ranks would be:

1. #4
2. #3
3. #1
4. #2 (our winner)

Answer 1

If I understand your question correctly, this is what you would need. Note that since MySQL doesn’t have a row numbering function, you need to use a variable in its place

SET @rank=0;    
SELECT * FROM (
    SELECT @rank:=@rank+1 AS rank, id, field FROM table ORDER BY field DESC
) vw
WHERE vw.id = 2;