What is Amazon DynamoDB? Topics • Service Highlights (p. 2) • DynamoDB Data Model (p. 3) • Supported Operations in DynamoDB (p. 7) • Provisioned Throughput in Amazon DynamoDB (p. 9) • Accessing DynamoDB (p. 10) Welcome to the Amazon DynamoDB Developer Guide. DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. If you are a developer, you can use DynamoDB to create a database table that can store and retrieve any amount of data, and serve any level of request traffic. DynamoDB automatically spreads the data and traffic for the table over a sufficient number of servers to handle the request capacity specified by the customer and the amount of data stored, while maintaining consistent and fast performance. All data items are stored on solid state disks (SSDs) and are automatically replicated across multiple Availability Zones in a Region to provide built-in high availability and data durability. If you are a database administrator, you can create a new DynamoDB database table, scale up or down your request capacity for the table without downtime or performance degradation, and gain visibility into resource utilization and performance metrics, all through the AWS Management Console.With DynamoDB, you can offload the administrative burdens of operating and scaling distributed databases to AWS, so you don’t have to worry about hardware provisioning, setup and configuration, replication, software patching, or cluster scaling. 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. • Getting Started (p. 12) — The Getting Started section walks you through the process of creating sample tables, uploading data, and performing some basic database operations. Beyond getting started, you'll probably want to learn more about application development with DynamoDB. The following sections provide additional information. • Working with DynamoDB —The following sections provide in-depth information about the key DynamoDB concepts: • Working with Tables (p. 55) API Version 2012-08-10 1 Amazon DynamoDB Developer Guide
• Working with Items (p. 86) • Query and Scan Operations (p. 166) • Improving Data Access with Secondary Indexes (p. 226) • Using AWS SDKs —AWS provides SDKs for you to develop applications using DynamoDB. These SDKs provide low-level API methods that correspond closely to the underlying DynamoDB operations. The .NET SDK also provides a helper class to further simplify your development work. In addition, the AWS SDKs for Java and .NET also provide an object persistence model API that you can use to map your client-side classes to DynamoDB tables.This allows you to call object methods instead of making low-level API calls. For more information, including working samples, see Using the AWS SDKs with DynamoDB (p. 335) .
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