Suppose I have the following SQL Select:
select SUM(FIELD1) AS FIELD1, SUM(PODET.ITEM_QUANT) AS ITEM_QUANT, SUM(POREC.REC_QTY) AS REC_QTY, POREC.PODET_PK FROM POREC RIGHT
JOIN PODET ON PODET.PODET_PK = POREC.PODET_PK
GROUP BY PODET.PODET_PK
HAVING SUM(POREC.REC_QTY) < SUM(Podet.ITEM_QUANT) > 0
What if all values of REC_QTY are NULL, what would be the SUM( REC_QTY )? In my test it works, that is, the SQL creates a query. But I am not sure if it is accurate.
I tried to change the HAVING to something like this:
HAVING CASE SUM(POREC.REC_QTY) IS NULL THEN SUM(PODET.ITEM_QUANT)>0 ELSE
SUM(POREC.REC_QTY < SUM( PODET.ITEM_QUANT) END
But I get error. I suppose I can't use IS NULL with SUM(), Correct?
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