Category: Amazon DynamoDB

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.

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.

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.

When working with Amazon DynamoDB, developers have the option to choose between a low-level client and a high-level client in most of the AWS SDKs offered. Understanding the differences between these client types is crucial for effectively interacting with DynamoDB. In this post, we explore the characteristics, use cases, and benefits of both low-level and […]

The Amazon Finance Technologies (FinTech) payment transmission team manages products for the Accounts Payable (AP) team, from invoices to the pay process. Their suite of services handles the disbursement process, from invoice generation to payment creation, to make sure that payment beneficiaries receive their payments. Amazon Business makes payments to a very diverse range of […]

Customers at times use proprietary database features like Microsoft SQL Server temporal tables or Oracle Flashback to store and query historical data from important tables or to record a change trail of contents. Temporal tables are a database feature that brings built-in support for providing information about data stored in the table at any point […]

We are excited to announce a new feature in Amazon DynamoDB that enhances the developer experience by simplifying the handling of ConditionalCheckFailedException. The new ReturnValuesOnConditionCheckFailure parameter for single write operations lets you return a copy of an item as it was during a failed write attempt, reducing the need for a read request if you want to investigate […]

Amazon DynamoDB is a fully managed, serverless NoSQL database service that provides fast and predictable performance with seamless scalability. Every table in DynamoDB has a schema which specifies if it has a simple partition key (for pure key-value lookups), or a partition key and sort key both (for more complex query patterns). You use these […]

DynamoDB Shell is (ddbsh) an open-source command line interface for Amazon DynamoDB. For a simple introduction, refer to Query data with DynamoDB Shell – a command line interface for Amazon DynamoDB. The ddbsh README.md file has detailed command and usage examples. One of the objectives of ddbsh is to provide a simple and intuitive environment […]

July 2024: This post was reviewed and updated for accuracy. Amazon DynamoDB customers often need to work with dates and times in DynamoDB tables. Querying tables on the basis of year, month, day, or even hours and minutes for real-time workloads has become a necessity for organizations. Therefore, it’s important to be able to query […]