Question

Assuming the following query:

SELECT
    ID,
    COUNT(1) AS NumRecords,
    SUM(Quantity) AS TotalQty
    SUM(Quantity)/COUNT(1) AS Avg
FROM        SOME_TABLE
GROUP BY    ID

Right now it returns:

ID    NumRecords    TotalQty    Avg
1     15            6           2

I want it to return a decimal value with a Scale of 2 for Avg (i.e. “2.5”).

I’ve tried to CAST the calcluation as a DECIMAL, NUMERIC, FLOAT, and VARCHAR, but it always returns an INTEGER.

Answer 1

You need to cast the inputs to the calculation not the result. Also any reason you aren’t using the AVG function?

AVG(CAST(Quantity as decimal(10,2)))