When I started creating a simple blog system as a newbie developer, I needed to design its category/tagging system. Then I was surprised by the lack of good res

When I started creating a simple blog system as a newbie developer, I needed to design its category/tagging system. Then I was surprised by the lack of good resources on how to design such basic features. I just wanted to know several design patterns and their pros and cons, but I couldn't find any, so I ended up designing my own crappy system. I hope someone wrote articles on it with actual DB schemas.