This is a really simple version of a page that creates a semi fixed, semi-customizable query and the shows the result of the query. The query is just one that fetches N random items from the rocket table of the launch database in Postgres. I call the query semi-customizable because each time you hit the "doQuery" button you get one more result. The first time you get 4, then, 5, then 6.
There is a lot that this little demo does not do that is requested in HW 5, but this is a reasonable starting point.