Databases using JSON as storage/transport format

Question

How many database systems there are that use JSON for storage or transport? I know of:

• CouchDB
• MongoDB
• DBSlayer

I remember I saw yet another vendor in a SO user's profile. That systems was using what they called binary JSON, but I can't remember the name of the product.

Lately, it appears that more and more DB projects are looking towards JSON for persistence storage. Some of them are even embracing HTTP as a transport layer.

Answer 1

Persevere is another DB that is loaded up with JSON:

http://www.persvr.org/

Primary transport is JSON HTTP/REST

Data is stored as JSON

It has a native JS/JSON client for running directly from the browser.

If you want a schema then it is defined using JSON

Answer 2

MongoDb is the one that uses a binary JSON storage format. I don't know if there is another that is document oriented. Most of the others are key value stores and can only retrieve an object based on one key.

Answer 3

Take a look at Basho's Riak. It has a number of things in common with CouchDB: Erlang-based, Javascript MapReduce API, HTTP transport, JSON document format and multi-master replication. It doesn't aim to be quite as simple as CouchDB (CouchDB is more "opinionated"), but they give you a lot of options for adjusting CAP parameters to meet the needs of your application, per-write.