This is the process I want to attain:

  1. I have 4 buttons
  2. Each 4 buttons have categories under it
  3. When those categories is selected it shows list of datas
  4. The datas are like powerpoint empty slides

Can Someone give me some idea how to create relational database base on that idea?

Flow of the Category:
https://www.screencast.com/t/rYKS7zkXlKCD

Best Regards