We all have to start somewhere - at one time I didn't know what MySql was, and a schema is deeper than that- You're going to have to Google a lot, and save all the good questions for the forums, I just Googled '
what is a MySql schema' and I thought this was a good one;
InformIT: Sams Teach Yourself SQL in 24 Hours > What Is a Schema?
Actually, that's AltaVista - they were pioneers in web search, I used them when it was a 'text only' Internet.