Redis: redis.set "foo", "bar"; redis.get "foo"
Mongo: db.stuff.save({json: "object"}); db.stuff.find({json: "object"})
Redis, Mongo, <insert your own zoo> ... : db.set(), db.find()
Redis: redis.set "foo", "bar"; redis.get "foo"
Mongo: db.stuff.save({json: "object"}); db.stuff.find({json: "object"})