Azure Cosmos DB Blog

The latest news, updates and technical insights from the Azure Cosmos DB team

Introducing a new system function and optimized query operators

June 21, 2022 Jun 21, 2022 06/21/22

Justine Cocchi

The query engine in Azure Cosmos DB Core (SQL) API now has a new system function and optimizations for a set of query operations to better use the index. In this post we’ll cover the new DateTimeBin function as well as improvements to GROUP BY, DISTINCT, OFFSET LIMIT, and JOIN. These example scenarios are for Contoso, a fictional online ...

Watch Now! Azure Cosmos DB Essentials Season 3

May 20, 2022 May 20, 2022 05/20/22

Ricky Diep

Season 3 is finally here! Explore and dive into the diverse types of architectures our customers use to build lightweight IoT & real-time telemetry applications by leveraging Azure Cosmos DB. Mustafa Branch and Mark Brown walkthrough use case diagrams, explain how data flows throughout the cloud application architecture, and explore ...

Azure Synapse Link: Announcing support for existing Azure Cosmos DB containers and seamless Power BI integration

March 30, 2022 Mar 30, 2022 03/30/22

Rodrigo Souza

Azure Synapse Link: Announcing support for existing Azure Cosmos DB containers and seamless Power BI integration.

The new Microsoft Azure Cosmos DB Developer Specialty Certification is here!

March 11, 2022 Mar 11, 2022 03/11/22

Nikisha Reyes-Grange

The new Microsoft Azure Cosmos DB Developer Specialty Certification is an important credential for developers who want to prove their skills in building scalable cloud-native applications with Azure Cosmos DB. Find free resources to help you prepare for - and pass! - the exam.

Financial services firm Jack Henry finds a reliable, fast database in Azure Cosmos DB

March 9, 2022 Mar 9, 2022 03/9/22

Mark Brown

Read about how Jack Henry has a found a scalable, reliable database in Azure Cosmos DB.

Microsoft Mechanics video: Azure Cosmos DB NoSQL Database for High Performance & Scalability

February 17, 2022 Feb 17, 2022 02/17/22

Nikisha Reyes-Grange

A new video by Microsoft Mechanics explores ways to get started with Azure Cosmos DB and build a NoSQL database for high performance and scalability.

Read many items fast with the Java SDK for Azure Cosmos DB

January 20, 2022 Jan 20, 2022 01/20/22

Theo van Kraay

Discover ways to collect lots of separate records quickly using the Java SDK for Azure Cosmos DB Java.

Tips & Tricks for Query Pagination in Azure Cosmos DB

January 13, 2022 Jan 13, 2022 01/13/22

Tim Sander

In this blog, we'll take a look at tips for query pagination in Azure Cosmos DB. Pagination is the process of dividing a large volume of data across many small pages.

Async IO for the Python SDK is now in preview!

December 16, 2021 Dec 16, 2021 12/16/21

Gahl Levy

Async IO support for Azure Cosmos DB Python SDK, an important and much-anticipated capability, is now available in preview! Async IO is a concurrent programming method in Python that makes running CRUD (create, read, update, delete) operations in parallel easy to do.

Reading data with Spring Data Azure Cosmos DB v3

December 15, 2021 Dec 15, 2021 12/15/21

Ravi Tella

Discover best practices to help improve the read performance of Spring applications when using the new Spring Data Azure Cosmos DB v3 for Core (SQL) API.

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