Examining how much resources are left in Oracle?

Hello. I'm writing some programs that interface with Oracle. I want to know if my programs are leaking any oracle resources. Is there a way to do that per connection/session? 'show sga' isn't very useful.
I'm running a bunch of sqlplus queries over 10,000 times which will eventually call some pl/sql code underneath, which in turn calls some external c++ programs. Some of these pl/sql programs dynamically create tables, views, and procs. I'm doing this 10k test on one connection.
I'm using top and I see that Oracle is slowly gaining memory, but i'm not sure what that would be that Oracle is just keeping track of items for house keeping purposes, or if my program is genuinely leaking.
Anyways, any insight/tools to use would be great.
thanks.

Do not much like the the phrasing of your questions. A lot of resources in Oracle is shared resources. The db buffer cache being 100% utilised is not an indication of resource leakage, or we-have-a-problem - it is a lot better to have data in the buffer cache than on disk when it comes to I/O. A fully utilised buffer cache is a lot more desirable than a stingy one that aggressively try not to be an "exhausted" resource at 100% utilisation.
There are also numerous ways to monitor memory usage in Oracle. Oracle consists of a number of different processes (on Unix/Linux each with its own data segment - stack & heap). Oracle uses shared memory. On the o/s side, what is reported at memory footprint of a process. The actual data segment alone? Global/shared memory used? A lot of memory reporting via top and ps are ambiguous, if you do not understand just what kernel calls are made to calculate this "memory" usage of a process.
Besides, it is very seldom an issue of "how much resources are left"? And even when one happens to be pushing resources, that is the wrong question to ask. Why? Because it is not about how much is left, but how well the resources are configured and being used.
And from the sounds of it, "Some of these pl/sql programs dynamically create tables, views, and procs." - it does not sound like it is being effectively used at all.
For PL/SQL code to be run 10's of 1000's times, and dynamically create database objects..? It's the kind of design and approach that makes me reach for my lead pipe.

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Examining how much resources are left in Oracle?

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