Add an
ORDER BY clause. Data inside SQL Server isn't stored in any specific order, it's all a "heap". When you use a TOP 1, without an ORDER BY, the result you get back will simply be the first row in the dataset created; which could be anything. Adding an ORDER BY defines the order (surprise that!) the data is returned in, thus resulting in the TOP 1 being the first ordered row.
Try yourself, and post back if you get stuck.
Thank you, Thom A. I did not form my question correctly. What I was interested is how to get ST_ID data for TOP record.
The query:
SELECT * FROM Client WHERE ID IN(Select TOP(1) SUM(TOTAL_PAYMENTS) as highest, ST_ID FROM ORDERS GROUP BY ST_ID ORDER BY highest DESC
obviously would not work. Any thoughts?
So it looks like you're trying to get that ID from the orders table and search client for it. You don't have to include the aggregate in the SELECT columns to be able to order by it 😀 So it looks like you would just want this in your sub query(assuming ST_ID is the column that joins to clients).
Select TOP(1) ST_ID FROM ORDERS GROUP BY ST_ID ORDER BY SUM(TOTAL_PAYMENTS) DESC