Hello, in this very simple trigger. It makes any difference to set it after
insert or before insert?
I think it doesn't but just want to make sure.

CREATE OR ALTER trigger stock_variaciones_ai0 for stock_variaciones
active after insert position 0
AS
begin
UPDATE STOCK
SET STOCK.CANTIDAD = STOCK.CANTIDAD + NEW.CANTIDAD
WHERE STOCK.ID = NEW.ID_STOCK;
end