If all you want to do is mimic multiple connections interacting with your database (inserting/selecting/updating), have a look at jmeter. It has an SQL option. You can specify how many connections you want to simulate, for what duration etc.
This will be directly interacting with the database, So if you also wanted to consider the web/app server latency, the direct SQL approach may not work.
Are there any PHP or front end examples of code I can use to populate data into my PostgreSQL 9.2 database server? I know PHP is very common and simple but I've never coded and web language before and I really am trying to see how my database handles multiple connections and populate it with bogus values...
Thanks for any info and or recommendations... -- Carlos Mennens