title: Berkeley DB: how does it compare to MongoDB?
body: <p>Recently, I've been digging into various types of DBs. I need to store &amp; query “relational, hierarchical, graph, document” hybrid data. I'm looking for the best DB solution.</p>
  
  <p>I can't find much data about Berkeley DB. Most of the stuff on their website is written by the marketing dept. One of the PDFs makes it sound like it handles relational data, not just key-value pairs. I saw in a blog that it does indexing.</p>
  
  <p>Where can I get some real info on this DB and how it compares to MongoDB? Data types, indexing capabilities, analytics, usage, and "suited for...".</p>
  
  <p>I am a little surprised at how little useful data is coming up in Google considering this DB is 15 years old.</p>