AWS DynamoDB
AWS Tutorial: Amazon DynamoDB
Welcome to the Amazon DynamoDB lesson. While RDS is perfect for relational data, modern, highly-scalable applications often require a different type of database: NoSQL.
Why Learn Amazon DynamoDB?
DynamoDB is AWS's premier NoSQL database. It is fully serverless, highly resilient, and capable of handling millions of requests per second. It is the database of choice for gaming, IoT, mobile apps, and massive e-commerce sites (like Amazon.com itself).
Tutorial Overview
In this tutorial, you will learn:
- What Amazon DynamoDB is.
- The benefits of a Serverless Key-Value database.
What is Amazon DynamoDB?
Amazon DynamoDB is a fully managed, serverless, key-value NoSQL database designed to run high-performance applications at any scale. DynamoDB offers built-in security, continuous backups, automated multi-Region replication, in-memory caching, and data export tools.
Key Characteristics
- Serverless: You don't provision servers or instances. You just create a table, and DynamoDB automatically scales it to handle your traffic.
- Single-Digit Millisecond Performance: DynamoDB delivers incredibly consistent response times (under 10 milliseconds) at any scale, whether you have 10 users or 100 million.
- Key-Value Store: Instead of strict tables, columns, and rows (like SQL), data is stored as a collection of flexible items (like JSON documents) retrieved via a unique Primary Key.
Exercise
?Which of the following describes Amazon DynamoDB?