There are several ways to do this:

• Store the previous queries in a hidden field, then you can run all of them, plus the new one every time you want to generate the table. Actually I don't know how you build queries but for security reasons I would not store the actual query but the parameters you used to generate it, or anything that allows to rebuild the query safely. Of course that means that you have to run several queries to build the 2cd page, so performance might be an issue.
• Store the results of the first request in a file (make sure you generate a unique filename as described in "unique" filename?) and pass the filename in a hidden field. Of course this is slightly insecure as a user can change the filename.

I don't know Apache::Session but I suspect you might be able to use it too.

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