Is it possible to achieve Group By....Having functionality in Discoverer?

Question

Hello All,
I need to print amount due for each customer when it is negative (less than zero). i.e. sum of all transactions against the customer should be less than zero. This is simple through sql if we write "select sum(amount) group by customer having sum(amount) < 0".
But I need to do this in discoverer. Now the issue is I need to pass two parameters at runtime. First one will be Date (<= as_of_date) and another one will be having multiple values (in clause).
If I base my report on underlying report view which uses 'group by... having' sql as described above, I will have to use parameter sheet and use syscontext to pass parameters.
Instead, it will be easier if i pull in all the data in discoverer report and then use parameters to filter it out. But then is there any way to group on customer and having clause to print only those customers where sum(amount) < 0?
Anish

Answer 1

Hi Russ,
I am new to discoverer so pardon me if I am not able to get you quickly.
I am sorry, but I did not get you when you say calc1 = SUM( CASE WHEN amount <0 then amount ELSE 0 END).
May be I was not able to describe you problem. Below is the SQL statement that will give me desired results. I want to achieve same results in Discoverer by getting rid of outer select query with grouping. I will be passing org_id and GL date as parameters.
select customer_number, name, sum(amount_due) Amount_Due, org_id, Business_Segment
from
SELECT hca.account_number customer_number, hp.party_name NAME,
aps.trx_number, aps.gl_date,
aps.amount_due_remaining amount_due, aps.class, aps.org_id org_id
,hca.attribute3
FROM apps.ar_payment_schedules_all aps,
apps.hz_cust_accounts hca,
apps.hz_parties hp
WHERE aps.org_id IN (570, 573)
AND aps.gl_date <= '30-NOV-2008'
AND aps.class in ('CM','INV','DM')
AND aps.customer_id = hca.cust_account_id
AND hca.party_id = hp.party_id
group by customer_number, name,org_id, Business_Segment
having sum(amount_due) < 0
order by 1
Hope I am able to explain you now.
Thanks,
Anish