Amazon Simple DB Database

The book I read to research this post was Amazon Simple DB Database Developer Guide which is a very good book which I downloaded for free from kindle. The whole point behind this cloud service is that it is easy to use or relatively for a database. It helps do away with the need for a database administrator. You can set upto 250 domains which is just another name for tables and they can be upto 10Gb each. You can add items and their associated criteria to a table already in use at a later date. You don't need to learn SQL to use it. You can add or delete upto 25 items at a time which prevents someone doing wholesale damage to your database. It works in conjunction with simple storage service and elastic compute cloud. There is a free tier usage system if you haven't got much data but what is on your domains must be used at least once every 6 months or they may delete it. The pricing policy only charges you for the storage you use if for example you don't use any extra storage for 2 weeks then use 2 GB for another 2 weeks you are charged as if you used 1 GB for 1 month. Finally you may want to use more than one Amazon server farm in case one goes down they have a European one in Ireland, Asian ones in Singapore and Tokyo and a South American one in Sao Paulo among others.