Compared with a static HTML Internet site where all content is on the actual website pages, any script-driven website gathers its information inside a database. A few examples of this kind of websites are a WordPress blog or an OpenCart electronic commerce portal - in both cases, product or service listings, rates, blog posts, user responses and so forth are collected in the database and not in the actual script files. The more the info you add, the bigger the database becomes and if your hosting plan has some limit for the maximum size a database can have, your website might not perform adequately as soon as you hit that limit. The results can vary from being unable to add new info to improperly performing Internet site or even the site displaying only error messages and not being available at all.