How to use AWS SimpleDB from Ruby

It’s cheap/free. You get 25 hours (this time is only used up by actual query time) and 1GB of storage for free.However, it’s a commonly forgotten AWS service, there’s no admin interface for it in the AWS Console, and you don’t see many tutorials or blog posts talking about it. DynamoDB is considered to have succeeded SimpleDB but is more complex to work with.Would I make SimpleDB the authoritative database of a large scale production app? No. Would I use it to store ephemeral data for experiments, Lambda functions or short lived processes? Perhaps!.