Transaction support in MongoDB

Question

I am new to MongoDB. I read that MongoDB does not support multi-document transactionshere http://docs.mongodb.org/manual/faq/fundamentals/.

If I want to

Answer 1

MongoDB doesn't support transactions, but saving one document is atomic.

So, it is better to design you database schema in such a way, that all the data needed to be saved atomically will be placed in one document.