Unlike the tutorial example HelloWorlds (http://processwire.com/docs/tutorials/hello-worlds/) about the planets Earth and Jupiter.   Is there a way to pass data to a Processwire page coming from 1) MySQL database or 2) Another Processwire page?  That way I can have a database table of planets and  just create one or two pages. One page if I had a dropdown of planets then output planet data on same page when a planet is chosen from the dropdown. Maybe 2 pages if I implement a holder/page pattern where the holderpage  will have links of planets, and once a planet link  is clicked, fetch planet data from the  database for info then output fetch data to a detail page?