making database on websites

Pictures are usually put in a folder on the server,just like in the desktop.I am dont think pictures are placed in a database as such...and im not sure,if there is a possibility for that. So,basically you need to place the pictures in a folder and have access to them through your web programming language- ASP.NET or Java or PHP. All the best.

You will need to have a hosting account that also offers mysql databases. Unless you have a script you will have to write your database yourself. This is not something you pickup overnight. And then you will also need to know how to write your webpages in php to be able to connect to mysql. You may want to get somebody to do it for you or take a few online lessons.