When it comes to public cloud, most of the time each operation means money, be it a read operation or a write. Each operation gets counted in terms of capacity units or in terms of the number of calls made to the database. So while working on cloud, we have to be extremely careful about the usage, and we also need to make sure that the bills are constant and do not end up as a surprise to any organization.

Until now, we have seen various features of DynamoDB, its internals and how they work, and how to add/delete/update data to and from DynamoDB. Now that you have learned most of the details from DynamoDB's usage point view, it's time to learn some best practices one should follow in order to make the most of DynamoDB. I am sure the best practices we are going to cover in this chapter would certainly help in saving some bucks for you and your organization.

In this chapter, we will cover the following topics: