is there a PRODUCT function like there is a SUM function in Oracle SQL?

Question

I have a coworker looking for this, and I don\'t recall ever running into anything like that.

Is there a reasonable technique that would let you simulate it?

Answer 1

DECLARE @a int
SET @a = 1
-- re-assign @a for each row in the result
-- as what @a was before * the value in the row
SELECT @a = @a * amount
FROM theTable

There's a way to do string concat that is similiar:

DECLARE @b varchar(max)
SET @b = ""

SELECT @b = @b + CustomerName
FROM Customers