Update database with data from dev site?
Jordan.

Unfortunately, this is not something that Drupal does very well.

You can try using the Deploy module, but in my experience as a professional developer, I have never met anybody who has found a good way to export nodes in a way that is thorough, consistent, and safe.

More specifically, Deploy may not support all field types, and sometimes field definitions are hard to find, and can be inconsistent (for example, taxonomy terms are exported as TIDs, which change if the term is deleted and then added again).

Sorry for the bad news.