Graph showing percent complete

Question

I've been staring at this for too long now and I'm sure there is a simple solution that has completely escaped me.
I have the following table:
PROJECTS
Product
Project
Status
Budget
Values look similar too:
ProductA Project1 Planned 300
ProductA Project2 Planned 200
ProductA Project3 Contracted 500
I want to create a graph that shows the percent contracted for Product A
Question One: What is the best graph to select
Question Two: How should I get the numerator (sum of contracted projects only)
This give me my total budget:
Select null link, product, sum(nvl(budget,0)) from PROJECTS
group by PRODUCT --> ProductA 1000
This gives me my total contracted budget:
Select null link, product, sum(nvl(budget,0)) from PROJECTS
where status in ('Contracted')
group by PRODUCT ---> ProductA 500
But I can't seem to get sum(budget) / sum (contracted budget) in the same query. Do I need to put it in the same query or is there a way I could set this up with a particular graph? Ideally I would like to see a graph similar to the 10g Express Edition. Any help would be appreciated. I have read through many of the post and documentation but I need something a little simpler since I am new.
Thanks

Answer 1

Jes,
Thanks, you really laid something new on me! The ratio_to_report is a great suggestion.
What I'd like to see is this grouped by status - for some reason SQL does not like a grouping function:
select product, status,
ratio_to_report(budget) over (partition by product) as ratio
from product
group by status
--> ORA-00942: table or view does not exist
PRODUCT     STATUS     RATIO
Product A     Planned     0.3
Product A     Planned     0.2
Product A     Contract     0.5
I'd like to see:
ProductA Planned 0.5
ProductA Contract 0.5
Basically I have many products, and for each I'd like a graph that looks like:
************ 50% contract
(sorry for the crude graph)
From a business point of view, this tells me 50% of my budget is committed to contracts.
With your suggestion, it seems I am on the right path, but I am having difficulties isolating the sum (or ratio) of my contracted projects.
Does this make sense? Thanks again for your help - I appreciate it.