[arinlen]

> I know people using DynamoDB for a tiny dataset that would easily fit in sqlite (or any other DB) running on a $20/month VPS.

I have to say your comment comes off as very ignorant. If you are a AWS customer then you either pick any of the database offerings, such as DynamoDB or Amazon RDS, or run your own database on a EC2 instance. Except running your own db in EC2 can cost around the same as running Amazon RDS, and DynamoDB has a very roomy free tier.

Therefore the piece of info you somehow left out is that DynamoDB is free for "a tiny dataset", and you do not have to manage anything at all with DynamoDB too.

[icedchai]

I already know all that. I’ve been using AWS for over 10 years. I’ll just say I prefer the relational model when starting out and leave it there. I’ve had good luck with RDS.

I’ve seen people paint themselves into a corner by screwing up their DDB keys too many times and having to export and reload all their data. If you don’t think ahead about your access patterns this is very easy to do. Nobody thinks ahead with “agile.” You’re better off starting with SQL and migrating things to Dynamo where it makes sense.