Azure Cosmos DB Blog

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

New in documentation for December 2020

December 10, 2020 Dec 10, 2020 12/10/20

Nikisha Reyes-Grange

A guide to the most recent Azure Cosmos DB technical documentation updates for December 2020.

Managing indexing through the Azure Portal in Azure Cosmos DB’s API for MongoDB

December 7, 2020 Dec 7, 2020 12/7/20

Tim Sander

In this blog, we’ll cover how to add and remove indexes using the new indexing policy editor. We’ll also highlight the differences in best practices for indexing in Azure Cosmos DB’s API for MongoDB and native MongoDB.

Understanding the difference between null and undefined in Azure Cosmos DB

November 25, 2020 Nov 25, 2020 11/25/20

Tim Sander

This blog is part two of a series of three blogs where we’ll demystify commonly confused concepts for developers learning how to query in the SQL (core) API in Azure Cosmos DB. We’ll look at the difference between null and undefined values.

Creating Mobile Applications with Azure Cosmos DB and React Native

November 19, 2020 Nov 19, 2020 11/19/20

Jason Amos

A step-by-step guide to building a mobile application with Azure Cosmos DB and React Native.

Now in preview – Support for Synapse SQL serverless in Azure Synapse Link for Azure Cosmos DB

October 28, 2020 Oct 28, 2020 10/28/20

Ramnandan Krishnamurthy

Azure Synapse Link now supports querying Azure Cosmos DB data using Synapse SQL serverless. This capability, available in public preview, allows you to use familiar analytical T-SQL queries and build powerful near real-time BI dashboards on Azure Cosmos DB data.

Understanding the difference between point reads and queries in Azure Cosmos DB

October 22, 2020 Oct 22, 2020 10/22/20

Tim Sander

In this blog, we'll look at the differences between point reads and queries in Azure Cosmos DB.

Azure Cosmos DB Repository .NET SDK v.1.0.4

October 7, 2020 Oct 7, 2020 10/7/20

David Pine

David Pine shares the unofficial Azure Cosmos DB Repository .NET SDK. The repository SDK aims to simplify the consumption of Azure Cosmos DB by abstracting away some of the complexities of the existing .NET SDK and exposes a modern generic repository pattern-based interface.

New date and time system functions in Azure Cosmos DB

October 1, 2020 Oct 1, 2020 10/1/20

Tim Sander

Learn about new system functions for working with dates and times in Azure Cosmos DB

Optimizing bandwidth in the Azure Cosmos DB .NET SDK

September 24, 2020 Sep 24, 2020 09/24/20

Matias Quaranta

Learn how to optimize the network bandwidth usage in your application by taking advantage of EnableContentResponseOnWrite to avoid getting unneeded content as part of your operations with the Azure Cosmos DB .NET SDK

Bulk Updates with Optimistic Concurrency Control

September 15, 2020 Sep 15, 2020 09/15/20

Theo van Kraay

How to support bulk updates in Azure Cosmos DB with Optimistic concurrency control. In this sample, we use Core (SQL) API to bulk update vertices in a graph hosted in Gremlin API!

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