Question

I understand it may seem a redundant question, but I hope it will clarify all my and other users doubts.

Here are the noSQL I am talking about can someone explain me:

1. The best use cases (When I should use it)
2. The pros and the cons (Limitations included)
3. Their added value (why it is better, possibly a mathematical/scientific explanation)

of MongoDB, Redis, CouchDB, Hadoop

Thanks

g

Answer 1

MongoDb and CouchDb are not key-value storages, but document-stores.