How to store site wide settings in a database?

Question

I\'m debating three different approaches to to storing sitewide settings for a web application.

A key/value pair lookup table, each key represents a setting.

<

Answer 1

I've used a key/value pair lookup table much in the way you describe with good results.

---

As an added bonus the table had a "configuration name" column which provided a simple way to choose/activate a specific set of configuration settings. That meant that prod, dev, and test could all live in the same table, though it was up to the application to choose which set to use. In our case a JVM argument made sense. It might make sense to store different "sets" of config settings in the same DB table; then again, it might not.

---

If you are thinking about file-based configuration, I like INI or YAML. You could still store it in a database, though you probably won't find an INI or YAML column type (as you might for XML).