Amazon DynamoDB
Developer Guide (API Version 2012-08-10)

What Is Amazon DynamoDB?

Welcome to the Amazon DynamoDB Developer Guide.

Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. DynamoDB lets you offload the administrative burdens of operating and scaling a distributed database, so that you don't have to worry about hardware provisioning, setup and configuration, replication, software patching, or cluster scaling.

With DynamoDB, you can create database tables that can store and retrieve any amount of data, and serve any level of request traffic. You can scale up or scale down your tables' throughput capacity without downtime or performance degradation, and use the AWS Management Console to monitor resource utilization and performance metrics.

DynamoDB automatically spreads the data and traffic for your tables over a sufficient number of servers to handle your throughput and storage requirements, while maintaining consistent and fast performance. All of your data is stored on solid state disks (SSDs) and automatically replicated across multiple Availability Zones in an AWS region, providing built-in high availability and data durability.

If you are a first-time user of DynamoDB, we recommend that you begin by reading the following sections:

  • What is DynamoDB—The rest of this section describes the underlying data model, the operations it supports, and the class libraries that you can use to develop applications that use DynamoDB.

  • Creating Tables and Loading Sample DataThis section walks you through the process of creating sample tables, uploading data, and performing some basic database operations.

After this, you'll probably want to learn more about application development with DynamoDB. The following sections provide additional information on DynamoDB concepts:

We also provide SDKs that enable you to access Amazon DynamoDB from a variety of programming languages. The SDKs automatically take care of tasks such as:

  • Cryptographically signing your service requests

  • Retrying requests

  • Handling error responses

For more information about available SDKs, see Tools for Amazon Web Services.


This guide provides code examples using the AWS SDKs for the following languages:

  • Java

  • .NET

  • PHP.

Other AWS SDKs also support DynamoDB, and are available for JavaScript, Python, Ruby, and mobile app development. To view the complete list of AWS SDKs, see Start Developing with Amazon Web Services.