posted 12 years ago
Do you mean a small icon/photo, say 60x60? Its so small that it makes no difference which you pick.
This is purely an engineering decision. Normal tradeoff. The obvious advantage of using a blog in MySql is that you don't have to think about managing the data. If you store it as a file, you need to manage the file structure, take care of when it gets full, fix broken links, etc.