Same SELECT query as before, different area of it… I have a function that calculates the recommended purchase order quantity for a stock item based off various other values and functions:
pqty(stock.code) AS "pqty"
This needs to be rounded up / down to the nearest multiple of the purchase unit quantity for that product – It's Friday afternoon and my head has refused to help me work out the maths all afternoon!
Example:
Pqty = 60
Purchase Unit = 25
Pqty needs to be rounded down to 50.
I guess I'm also asking if I should do this in the Pqty function or in the SELECT query to optimize the result?
select 25 * round(cast(60 as double precision) / 25)
