Amazon DynamoDB is a NoSQL transactional database that provides single-digit millisecond latency even at petabytes scale. This Amazon Web Services (AWS) serverless offering is getting popular because of its consistent performance and scalability. You do not need to provision storage. Your single table can grow up to petabytes.
DynamoDB monitors the size of your table continuously throughout the month to determine your storage charges. AWS then charges you for the average size of storage in gigabytes. The more that your table grows over time, the more that your storage cost will grow. To calculate storage cost, you can use AWS Pricing Calculator, but you need to provide the approximate size of your table, including global secondary indexes (GSIs), which is really difficult to estimate at the beginning of the project. Also, AWS Pricing Calculator does not consider the data growth rate.
