Why CouchDB?

CouchDB has a JSON document storage model with a powerful query engine based on a HTTP API.

Using JavaScript in design documents, you have control of ways to query, map, combine, and filter your data. Providing fault tolerance, extreme scalability, and incremental replication, CouchDB is a good choice for a non-relational, document database.

While a traditional relational database requires you to model your data up front, CouchDB’s schema-free design unburdens you with a powerful way to aggregate your data after the fact, just like we do with real-world documents. We’ll look in depth at how to design applications with this underlying storage paradigm.

Test

Design documents behave like all documents in terms of revisions, replication, and conflicts. You can also add attachments to design documents.