Another EXAMPLE is the MAINPAGE of my little WixWorld-project 
This page exists physicaly just 1x !!!
But when you look into the table on this page…
https://russian-dima.wixsite.com/meinewebsite
…you will see all the DATA, which is stored in my DATABASE.
All the rest of about 30-Sitepage are created DYNAMICALY (they do not really exist, they just are projected trought a DYNAMIC-PAGE / TABLE or REPEATER.