Question

I have this sql query:

select COUNT(batch_id) AS cc FROM tbl_associate_593932 WHERE induction_result>50 GROUP BY batch_id

This query executes correctly with only one column cc. Now I want to get max value out of the values in this column. I tried something like this:

select max (cc) from  (select COUNT(batch_id) AS cc FROM tbl_associate_593932 WHERE induction_result>50 GROUP BY batch_id);

However in SQL Server, it gave me error: Incorrect syntax near ‘;’. Expecting AS, ID or Quoted_ID

and another error Invalid column name ‘cc’.

How can I do this in SQL Server. Can same be done in Oracle?

Answer 1

You can do this:

WITH CTE
AS
(
   select COUNT(batch_id) AS cc 
   FROM tbl_associate_593932 
   WHERE induction_result > 50 
   GROUP BY batch_id
) 
SELECT MAX(cc)
FROM CTE;

Or:

SELECT TOP(1)
  COUNT(barch_id) AS cc
FROM tbl_associate_593932 
WHERE induction_result > 50 
GROUP BY batch_id
ORDER BY cc DESC;