AWS Database Blog

Category: Amazon DynamoDB

Know before you go: Amazon DynamoDB sessions at AWS re:Invent 2023

It’s November, which means that AWS re:Invent 2023 is just around the corner! We’ve summarized a list of re:Invent sessions that include Amazon DynamoDB. We encourage readers who are interested in learning more about DynamoDB to bookmark this list to simplify how you schedule your conference week in Las Vegas this year. Keynotes and leadership […]

Use Amazon DynamoDB incremental export to update Apache Iceberg tables

Amazon DynamoDB is a fully managed, serverless, key-value NoSQL database designed to run high-performance applications at any scale. DynamoDB recently launched a new feature: Incremental export to Amazon Simple Storage Service (Amazon S3). You can use incremental exports to update your downstream systems regularly using only the changed data. You no longer need to do a […]

Implement Time to Live in Amazon Neptune, Part 1: Property Graph

Time to Live (TTL) is a mechanism that helps determine the longevity or lifespan of data, files, infrastructure, or even entire environments. When working with data, it could represent the amount of time a leaderboard expires in memory before being reloaded from storage, or how long a file must be kept for regulatory or compliance […]

Archive to cold storage with Amazon DynamoDB

Amazon DynamoDB is a fully managed NoSQL database that provides fast and predictable performance with seamless scalability. Customers across multiple industries utilize DynamoDB as their database of choice. Numerous education technology (EdTech) companies utilize DynamoDB as a persistent data store to track students’ exam scores and course progress. As students advance through various grades, their […]

How Zalando migrated their shopping carts to Amazon DynamoDB from Apache Cassandra

This post is co-written with Holger Macht and Mike Matsumoto from Zalando. Zalando is a leading European online shop for fashion and lifestyle. Founded in Berlin in 2008, Zalando brings head-to-toe fashion to over 50 million active customers, offering clothing, footwear, accessories, and beauty supplies. The assortment of international brands ranges from world-famous names to […]

Implement auto-increment with Amazon DynamoDB

When developing an application with Amazon DynamoDB, sometimes you want new items inserted into a table to have an ever-increasing sequence number. Some databases call this auto-increment and automatically populate the value on insert. Example use-cases could be giving a customer order or a support ticket a numeric identifier. DynamoDB doesn’t provide auto-increment as an […]

Introducing incremental export from Amazon DynamoDB to Amazon S3

Amazon DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale. It’s a fully managed, multi-Region, multi-active, durable database with built-in security, backup and restore, and in-memory caching for internet-scale applications. In 2020, DynamoDB introduced a feature to export DynamoDB table data to Amazon Simple Storage Service (Amazon S3) with […]

Handle traffic spikes with Amazon DynamoDB provisioned capacity

If you’re using Amazon DynamoDB tables with provisioned capacity, one challenge you might face is how best to handle a sudden request traffic increase (spike) without being throttled. The more sudden and extended the traffic spike, the more likely a table will experience throttles. However, throttles aren’t inevitable even for spiky traffic. Here we walk you through eight designs to handle traffic spikes, and present their advantages and disadvantages.

Build aggregations for Amazon DynamoDB tables using Amazon DynamoDB Streams

In this post, we discuss how to perform aggregations on a DynamoDB table using Amazon DynamoDB Streams and AWS Lambda. The content includes a reference architecture, a step-by-step guide on enabling DynamoDB Streams for a table, sample code for implementing the solution within a scenario, and an accompanying AWS CloudFormation template for easy deployment and testing.

Model hierarchical automotive component data using Amazon DynamoDB

In this post, we discuss an automotive manufacturing information management use case where we store information about components within a vehicle as well as the hierarchy between each of the components. For our automotive use case, we use Amazon DynamoDB to deliver transactional queries, such as component attribute lookups. We will also show you how to use DynamoDB for larger responses such as a recursive query for all the components in a vehicle. While recursive object relationships can be represented in graph databases and possibly traditional RDBMS (with complex joins), these deeper queries can also be represented in DynamoDB.