Amazon DynamoDB

Amazon DynamoDB is a fully managed NoSQL database service provided by Amazon Web Services (AWS). It is designed to provide fast and predictable performance with seamless scalability.

Key Features:

• Managed Service: DynamoDB is fully managed, meaning AWS takes care of administrative tasks such as hardware or software provisioning, setup, and configuration.
• NoSQL: It is a NoSQL database, allowing for flexible schema design and efficient handling of large amounts of data with varying structures.
• Scalability: DynamoDB scales horizontally, automatically distributing data and traffic for the configured throughput capacity.
• Highly Available: It offers high availability and fault tolerance with automatic and synchronous replication across multiple Availability Zones.
• Security: DynamoDB provides features like encryption at rest, VPC (Virtual Private Cloud) isolation, and fine-grained access control using AWS Identity and Access Management (IAM).

Data Model:

DynamoDB uses a key-value and document data model. Each item in a DynamoDB table is uniquely identified by a primary key, and additional attributes can be stored as part of each item.

Primary Key:

The primary key can be either a single attribute (Simple Primary Key) or a combination of two attributes (Composite Primary Key). The primary key type determines how the data is distributed across multiple partitions for scalability.

Usage:

DynamoDB is suitable for a wide range of applications, including web and mobile applications, gaming, IoT, and more. It provides low-latency access to data and can handle massive-scale applications with ease.

For more detailed information, refer to the official DynamoDB documentation.