Question

I’m trying to get the max of column:

select * from
( select col1, count(*) as cnt from talbe1
group by col1
) dt
where cnt = max(cnt)

I tried to get exact value and it worked such as:

where cnt = 5   

or

where cnt > 3  

that was OK so what is wrong with the first query?

Edit: the numbers I put there (5, 3) are completely random, I want to get the maximum number of cnt.

Answer 1

Aggregate clauses have to go in the HAVING section. However, this won’t work with your query as is. What you probably wanted to do was:

select top 1 col1, count(*) as cnt 
from talbe1
group by col1
order by count(*) desc